![Comparison between RK measurements. The measurements by the BaBar and Belle collaborations combine B+→K+ℓ+ℓ− and B0→KS0ℓ+ℓ− decays, where ℓ is a lepton. The previous LHCb measurements and the new result [4], which supersedes them, are also shown.](http://portal-cdn.scnat.ch/asset/40d25219-cf32-5d7f-a344-d4356ccc9252/Screenshot%202021-03-23%20at%2007.10.12.png?b=7f50075d-36d9-5913-bc44-fac8e7e34457&v=9bd7e834-a6a8-55b6-a09e-b7a43d64781f_100&s=ZXCr4RK3qEJY7uCaZs-9pRZZZ8OZ8EVj3Rtyhyf2-qP-evQun65d57tCLxGqXtaTEoil2Qpqb3qILXWzeagdRAk0VyPfdvD6i55sqpj1txNkByqDDgqtsu4QPc8YaVnoTVyp_QF8cXZ9TucqIpINFjwWWfLF-52KvErWu9a54Gs&t=2f78dd92-7a22-4f43-a0bf-8326ef689cea&sc=2 "Comparison between RK measurements. The measurements by the BaBar and Belle collaborations combine B+→K+ℓ+ℓ− and B0→KS0ℓ+ℓ− decays, where ℓ is a lepton. The previous LHCb measurements and the new result [4], which supersedes them, are also shown.")
- Notizie
In memoriam Roland Engfer, December 5, 1934 - October 18, 2021
Immagine: University Zurich, Switzerland1/7- Comunicato stampa
- Notizie
Gabriel Cuomo receives the CHIPP Prize 2021
Immagine: G. Cuomo2/7- Comunicato stampa
- Notizie
Recent Results from LHCb Challenge Leading Theory in Physics
Immagine: LHCb, CERN3/7- 2021
- Relazione
CHIPP Roadmap
Immagine: SCNAT4/7- Comunicato stampa
- Notizie
Two dark matter detector heavyweights join forces to build new observatory
Immagine: XENON experiment5/7- Comunicato stampa
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Leading Xenon Researchers unite to build next-generation Dark Matter Detector
Immagine: XENON collaboration6/7- Notizie
Making the invisible visible
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The Swiss Institute of Particle Physics (CHIPP) is the bottom-up organisation of Swiss particle and astroparticle physics researchers in Switzerland as a legal entity of Swiss law. CHIPP is tasked with coordinating the national efforts in the realm of particle and astroparticle physics.
This is achieved by keeping a continuous dialogue between the particle physicists of different cantonal universities and federal institutes. CHIPP is recognized as the representative of Swiss particle physics both nationally and internationally. It awards yearly a Prize to a PhD student, supports workshops and conferences, organises PhD schools, and develops outreach projects.
Eventi, Notizie, Pubblicazioni
Swiss high school students experiment at CERN
A premier at the European Research Center for Particle Physics (CERN) in Geneva-Meyrin: 24 teenagers and young adults from all over Switzerland spent over two weeks in October at CERN to learn and conduct experiments on site. The “Swiss High-School Students Internship Program 2021” (HSSIP) promotes the next generation of researchers in particle physics.
Immagine: Andrej Maraffio
Prof. Ingo Sick
Ingo Sick, Prof. Dr. Dr. h. c. of the University of Basel, passed away on 30 May 2021, two days after his 82nd birthday. During his postdoctoral period at Stanford University with Nobel Prize winner Robert Hofstadter, he experienced the beginnings of electron research with the world's best electron accelerator at the time, SLAC. This domain of research was to remain with him forever.
The Guide to Swiss particle physics
At first glance, particle physics appears to be a clearly defined sub-discipline of physics. On closer inspection, however, we see a differentiated research landscape with a broad spectrum of questions. The Swiss Institute for Particle Physics (CHIPP), the umbrella organisation for Swiss particle physics, has now drawn up a roadmap of the research priorities for the coming years and decades.
Immagine: CHIPP
Gabriel Cuomo receives the CHIPP Prize 2021
Last year, Gabriel Cuomo successfully defended his PhD thesis in theoretical particle physics at École Polytechnique Fédérale de Lausanne (EPFL). For this academic achievement, the Sicilian-born physicist, who now lives and researches in New York, receives the Doctoral Students Award of the Swiss Institute of Particle Physics (CHIPP). The prize will be awarded at the beginning of September in Innsbruck on the occasion of the annual meeting of the Swiss Physical Society (SPS) together with the Austrian partner organisation.
Particle physics for everyone
The European Research Centre for Particle Physics (CERN) in Geneva is currently working on making the measurement data from four large-scale experiments available to the public via internet. This form of 'open science' benefits particle physicists around the globe, but also students or high school students - for example in Switzerland.
Various results shake up the Standard Model
At the beginning of April, the US research laboratory Fermilab published a new result for the magnetic dipole moment of the muon. The result caused a broad media response because it deviates from the theoretical predictions and thus questions the previous understanding of the laws of nature. Researchers from the Albert Einstein Center for Fundamental Physics (AEC) at the University of Bern were involved in the theoretical predictions. Prof. Martin Hoferichter, theoretical physicist at the AEC, explains the background.
![Comparison between RK measurements. The measurements by the BaBar and Belle collaborations combine B+→K+ℓ+ℓ− and B0→KS0ℓ+ℓ− decays, where ℓ is a lepton. The previous LHCb measurements and the new result [4], which supersedes them, are also shown.](http://portal-cdn.scnat.ch/asset/40d25219-cf32-5d7f-a344-d4356ccc9252/Screenshot%202021-03-23%20at%2007.10.12.png?b=7f50075d-36d9-5913-bc44-fac8e7e34457&v=9bd7e834-a6a8-55b6-a09e-b7a43d64781f_100&s=ZXCr4RK3qEJY7uCaZs-9pRZZZ8OZ8EVj3Rtyhyf2-qP-evQun65d57tCLxGqXtaTEoil2Qpqb3qILXWzeagdRAk0VyPfdvD6i55sqpj1txNkByqDDgqtsu4QPc8YaVnoTVyp_QF8cXZ9TucqIpINFjwWWfLF-52KvErWu9a54Gs&t=168762a9-a047-48ef-8189-ae1810223337&sc=2 "Comparison between RK measurements. The measurements by the BaBar and Belle collaborations combine B+→K+ℓ+ℓ− and B0→KS0ℓ+ℓ− decays, where ℓ is a lepton. The previous LHCb measurements and the new result [4], which supersedes them, are also shown.")
Exciting news from CERN experiment with Swiss participation
Almost ten years ago, the European Laboratory for Particle Physics (CERN) made headlines with the discovery of the Higgs particle. These days, the LHCb experiment at CERN has published results that also have the makings of a real scientific sensation: studies of the so-called beauty quark suggest that there could be a fifth, super-weak force in addition to the four known forces of nature (electromagnetism, gravitation, strong and weak interaction). However, CERN researchers still have a lot of work ahead of them to confirm this spectacular hypothesis. At the forefront: particle physicists from the University of Zurich and EPF Lausanne
Martin Pohl racchiude un secolo di fisica delle particelle tra le pagine di un libro.
Prima di arrivare alla pensione nel 2017, Martin Pohl è stato professore di fisica all'Università di Ginevra e ha lavorato a progetti di ricerca sulla fisica delle particelle per quasi mezzo secolo. Attingendo a questa ricchezza di esperienza, è stato scritto un libro in cui Pohl traccia consapevolmente i filoni evolutivi di questa disciplina fondamentale. Il culmine è il "Modello Standard" della fisica delle particelle - per Pohl un punto culminante scientifico e un peso allo stesso tempo.
CHIPP Roadmap
This community roadmap presents the visions for future research in particle and astroparticle physics in Switzerland and formulates the needs of these fields in terms of research infrastructure in the years 2025-2028 and beyond. It was established under the auspices of the Swiss Institute of Particle Physics (CHIPP), which issued its first roadmap already in 2004 and conducted dedicated roadmap-planning workshops in 2018 and 2020.
Recent Results from LHCb Challenge Leading Theory in Physics
Swiss Particle Physics researchers are very proud to announce that UZH people worked directly on this measurement and had a leading role on this analysis, EPFL and UZH are very prominent in LHCb in both analysis and hardware.
CERN scientists develop a ventilator
The technical know-how that physicists use in research could soon serve in the fight against the COVID-19 pandemic. An international team of scientists with strong Swiss participation has developed a ventilator in record time that could help in the future against lung diseases like Corona, especially in countries with a precarious medical infrastructure.
Particle physicists create artificial atoms for research purposes
In the laboratories of modern physics the elementary components of matter are studied. To do this, scientists sometimes build artificial atoms to help them understand the laws of matter. A research team at the Paul Scherrer Institute (Villigen/AG) uses a specifically modified helium atom to determine the exact mass and other properties of pions. Pions could help to understand more precisely where atomic nuclei get their mass from.
The Economics of Big Science
Presents a novel combination of essays with contributors from big research organizations, funding agencies and experts in economics
Claudia Merlassino wins the CHIPP Prize 2020
Claudia Merlassino was born in Genoa, studied physics in Milan and completed her doctorate at the University of Bern in October 2019, since then she has been doing research at Oxford University in the UK. At the age of 28, the Italian experimental physicist has already made a remarkable journey as a researcher. She is now receiving the PhD prize in Swiss particle physics - among other things for her findings in the context of the most massive of all elementary particles.
Geneva school wins “Beamline for Schools” 2020 competition
The delta+ is a type of baryon, the family of sub-atomic particles to which the more well-known proton and neutron belong. A team of physics enthusiasts at the International School of Geneva is working intensively on these extremely unstable elementary particles. In September they will travel to Hamburg for an experiment at the renowned particle physics research institute DESY. They owe this extraordinary research trip to winning this year's “Beamline for Schools” (BL4S) competition at CERN.
Zurich particle physicists make headlines with XENON collaboration
Axions are elementary particles with extremely low mass. So far they exist only in the brains of theoretical physicists, nobody has observed them. Really? Measurement results at detector XENON1T in Italy make one sit up and take notice.
CERN collaborations present new results on charmed particles at online conference
The ALICE, CMS and LHCb collaborations present new measurements that show how particles containing charm quarks can serve as “messengers” of hadrons and the quark–gluon plasma, carrying information about these forms of matter. This media update is part of a series related to the 2020 Large Hadron Collider Physics (LHCP2020) conference, taking place 25–30 May 2020.
La start-up Positrigo utilizza i risultati della fisica delle particelle per la diagnosi precoce del morbo di Alzheimer
La tomografia ad emissione di positroni (PET) aiuta i medici a rilevare il cancro e molte altre malattie. Un team di ricercatori guidato dal professor Günther Dissertori sta lavorando a una nuova generazione di scanner per PET che in futuro potrebbero essere di grande utilità nella ricerca farmacologica e nel trattamento dei malati di Alzheimer. L'innovazione tecnica si basa, tra l'altro, sulla ricerca fondamentale al CERN.
CHART lavora sugli acceleratori di particelle del futuro
FCC - queste tre lettere rappresentano la visione di un nuovo acceleratore circolare che potrebbe essere costruito presso il laboratorio europeo di fisica delle particelle CERN a Ginevra. Con questo obiettivo a lungo termine, cinque anni fa i fisici svizzeri hanno fondato l'iniziativa di ricerca CHART. Ora è disponibile il dimostratore di un potente magnete. Se i test hanno esito positivo, verrà raggiunto un primissimo passo verso progressi decisivi nelle infrastrutture per la ricerca di base, ma anche in applicazioni come, ad esempio, strumentazione innovativa per terapie mediche.
University of Applied Sciences Northwestern Switzerland researches astroparticles of the Sun
Scientists at the University of Applied Sciences and Arts Northwestern Switzerland (FHNW) have spent around ten years building the Spectrometer / Telescope for Imaging X-rays (STIX). Since 10 February, the research instrument is travelling to the Sun. It will provide accurate measurements of the solar atmosphere and the solar wind and will also cover the polar regions of the Sun that cannot be observed from Earth.
California-based neutrino researcher François Drielsma
With its European particle physics laboratory CERN, Geneva attracts many researchers to Switzerland. This was also the case with François Drielsma (28). In a doctoral thesis supervised by Prof. Alain Blondel (University of Geneva), the Belgian-born scientist investigated a completely new way to build a particle accelerator.
Rainer Wallny on the CERN Future Circular Collider (FCC) project
Particle physicists from all over Europe are currently discussing the future of European particle physics, when the current ring accelerator LHC will be decommissioned around 2035. Next May, the decision could be taken launch technical and financial feasibility studies for the construction of a new, even more powerful particle accelerator.
Particle physicists formulate future of the field
This week’s drafting session marks final discussions for the update of the European strategy for particle physics
About the movie "Les Particules" by Blaise Harrison.
Elementary particle physics and the large-scale CERN research facility have repeatedly inspired artists to engage with modern scientific research. The latest example is the movie 'Les Particules' by French-Swiss filmmaker Blaise Harrison (39). In this art piece scientific research serves as an escape and dream world for an adolescent.
Lesya Shchutska vuole dimostrare l'esistenza di neutrini pesanti
Lesya Shchutska (pronuncia: Schutska) ha 33 anni e già professore di Fisica delle particelle elementari presso l'Istituto Federale Svizzero di Tecnologia di Losanna (EPFL). "Al momento non riesco a immaginare di fare qualcosa di diverso dalla fisica", afferma il ricercatore, che si occupa di particelle che finora esistono solo nelle menti dei fisici teorici.
Visiting the Japanese Super-Kamiokande detector (part 2)
In deep underground tunnels of former mines near the Japanese Alps, teams of scientists with Swiss participation are researching various types of elementary particles. Over the next few years, powerful research instruments will be put into operation with which scientists want to discover the nature of neutrinos. The hoped-for results could lead to solving of deep puzzles in our understanding of the universe.
Visita in Giappone al rivelatore Super-Kamiokande (part 1)
Nessuna particella elementare attraversa più frequentemente l’universo degli schivi neutrini. Le ricerche delle piccolissime particelle quasi senza massa è al centro dell’odierna fisica delle particelle elementari. Probabilmente il contributo più importante degli ultimi vent’anni alla conoscenza del neutrino lo dobbiamo al rivelatore giapponese Super-Kamiokande in cui diversi gruppi di ricercatori Svizzeri sono coinvolti. Una visita alle montagne in Giappone.
Fermilab and University of Bern join forces for neutrino physics
Neutrinos are ubiquitous yet elusive particles that could shed light on the early evolution of the universe. As one of the world’s major laboratories for neutrino physics, Fermilab partners with leading organizations around the globe to get a firmer grasp on these subtle particles.
Callum Wilkinson prepara l’esperimento DUNE all’Università di Berna
Nel 2025, l’esperimento 'Deep Underground Neutrino Experiment' (DUNE) prenderà il via nel nord degli Stati Uniti d’America, vi lavorano i fisici che aspirano a conoscere meglio il neutrino – la particella elementare ancora misteriosa. Una componente importante dell’esperimento DUNE è in costruzione all’Università di Berna.
Cinquanta Terabit di dati ogni secondo
A partire da 2026, le prestazioni dei grandi esperimenti al laboratorio Europeo di fisica delle particelle, il CERN, a Ginevra, saranno aumentate notevolmente. I lavori di preparazione per l’upgrade del grande acceleratore LHC e dei vari esperimenti è in pieno fermento. Un importante contributo viene dall’Università di Berna, dove il dottorando Armin Fehr (di 26 anni) e i suoi colleghi stanno lavorando su una componente dell’esperimento ATLAS. Questa componente renderà possibile acquisire i dati alla frequenza grandemente aumentata prevista dal 2026 in poi.
The LHCb collaboration at CERN has discovered a type of CP violation unobserved so far
The LHCb collaboration at CERN has seen, for the first time, the matter–antimatter asymmetry known as CP violation in a so-called D0 meson. LHCb is one of the four large experiments performed at the Large Hadron Collider (LHC) with Swiss participation of Ecole polytechnique fédérale de Lausanne (EPFL) and University of Zurich.
Anna Soter vuole usare degli atomi esotici per un esperimento sofisticato
La forza di gravità ci accompagna in ogni momento della nostra giornata – dalla mattina, quando ci alziamo dal letto, fino a tardi la sera quando stanchi morti cadiamo sul materasso. Sebbene nessuna altra forza condizioni le nostre vite tanto quanto la gravità, essa ci rimane quasi sconosciuta. Molti scienziati nel mondo stanno cercando di svelare i segreti della gravità. Uno di questi sta conducendo le sue ricerche nel cantone Argau: la 32enne fisica delle particelle Anna Soter.
Astroparticle Physics European Consortium (APPEC) elects the new Scientific Advisory Committee Chair and the new General Assembly Chair.
Professor Laura Baudis (U. Zurich) was elected Chair of the SAC by representatives of the member countries of the group which coordinates research in Astroparticle Physics in Europe. Professor Teresa Montaruli (U. Geneva) was elected Chair of the General Assembly.
Swiss input for the discussion on the European Strategy for Particle Physics
In the first workshop in April, the status of the field was reviewed and discussed. The CHIPP input for the discussion of the ESPP update was then agreed during the second workshop held in September. This document describes the CHIPP position on the ESPP update focused on the scientific issues.
In the triangle Uni Zurich-PSI-CERN
Anyone who studies physics at the University of Zurich knows Lea Caminada for her lectures. Most of the time, however, you will not find the particle physicist on the Irchel campus, but at the Paul Scherrer Institute (PSI) in Villigen in the canton of Aargau doing research. There, the 36-year-old scientist develops sophisticated measuring instruments, which are then used at CERN for cutting-edge research. In a questionnaire, Lea Caminada gives an insight into her everyday life as an experimental physicist.
The best way to new physics
If you are looking for unknown things, you usually do not know which way to go to find the unknown. This dilemma is also faced by scientists who want to advance into previously unknown areas of elementary particle physics. And yet they have to find a consensus on which experiments promise the greatest gain in knowledge in the next years and decades. For this purpose, the Swiss particle physicists are currently working on a new research roadmap.
Mobile phone sensors, fit for cutting-edge research
The large particle accelerator LHC at CERN in Geneva enables scientists to get precious clues to understand the nature of matter in the next two decades of data taking. The power and performance of this huge research apparatus needs to be constantly improved for this task. A silicon sensor, which the junior researcher Claudia Merlassino is currently testing at the University of Bern, is planned to be used from 2025 in a large LHC experiment: ATLAS.
Drugs from the particle physics research lab
CERN in Geneva is the world's largest facility for the study of fundamental particles. The equipment that usually serves science can sometimes be used for practical purposes too. That's for example the case for the protons emerging from the Proton Synchrotron Booster (PSB): they are used in the large particle accelerator LHC for scientific experiments. The protons can also be used to produce isotopes that are useful in radiation medicine. Such isotopes are produced in the recently opened facility CERN-MEDICIS.
Un tocco di magnetismo
Quest’autunno all’Istituto Paul Scherrer comincerà la costruzione di un nuovo esperimento di fisica delle particelle per determinare il dipolo elettrico del neutrone. Rimpiazzerà il precedente esperimento, che al momento ci ha fornito la misura alla lunga piú precisa degli ultimi anni e la cui analisi dei dati è ancora in corso. Il nuovo esperimento, disegnato in collaborazione tra il dottorando di ETH Michal Rawlik, puó rivelare delle caratteristiche del magnetismo inimmaginabilmente piccole. Un risultato positivo dell’esperimento potrebbe aiutare a spiegare perché c’è tanta piú materia nell’universo rispetto all’antimateria.
An Unimaginably Sharp Image of Antiprotons
Researchers of the Baryon-Antibaryon-Symmetry experiment (BASE) at CERN have achieved a remarkable success: They have determined the magnetic moment of the antiproton with a previously unattained accuracy. The measurement is more precise than the best measurement for the magnetic moment of the proton.
LHC provides data again
After a half-year break, the Large Hadron Collider (LHC) at CERN will go into operation again in June. During the last few months, intensive maintenance work on the particle accelerator has been done. The physicist community is hoping to gain new insight into the building bricks that make up our world.
Artistic View on Physics
The highly complex research of elementary particle physics is for most people not immediately comprehensible. An artistic approach can help overcome the inaccessibility of this discipline and make particle physics understandable. This is the basic idea of the art @ CMS program, which is celebrating its five-year anniversary this year.
Heart surgery at CERN
During the recent service pause of the CERN Large Hadron Collider (LHC), a key component of the CMS experiment was replaced at the beginning of March: the new pixel detector is even more powerful than its predecessor – raising hopes for new insights in elementary particle physics.
Research as a peace project
The laws of particle physics apply regardless of place and time, but the laws can’t be explored or their applications studied equally well in any location. Particularly in poorer countries, cost-intensive research projects face big challenges. Against this background, there is a ray of hope that the first Synchrotron in the Middle East for the production of high-brilliance X-ray radiation, called SESAME, will be launched during summer 2017. Switzerland has contributed to the success of this project.
Blocked future
The Chinese writer Cixin Liu has landed an international bestseller with the novel 'The Three-Body Problem'. Now his story about the fight between the Earth and the Trisolaran population is also available in German translation. In the dress of a science fiction novel, the 53-year-old author expresses his deep conviction: without fundamental research in physics, technical progress remains on the line.
"We do not see the whole picture"
Laura Baudis, Professor of Particle Physics at the University of Zurich, recently talked about the extremely difficult search for Dark Matter at the TEDxCERN event in Geneva. In the talk, which is available as a video recording, she gives a well understandable insight into one of the hotest topics of current particle physics research.
"Like the CEO of a multinational company"
The abbreviation CMS stands for one of the currently largest physics experiments worldwide. Günther Dissertori, a particle physicist at the Swiss Federal Institute of Technology (ETH) Zurich, was recently appointed to the three-headed spokesperson-team of the CMS experiment, which is located at the large particle accelerator at CERN in Meyrin near Geneva. The 47-year-old scientist has to cope with a task that can be compared to the management of an international company with 4,000 employees.
Track and trap – the long search for magnetic monopoles
Is there an elementary particle carrying magnetic charge? This fundamental question is being addressed by an experiment currently performed at CERN near Geneva. Recently the MoEDAL research collaboration published its first findings. No discovery has been made so far, but now the experiment will enter in its hot period. Prof. Philippe Mermod and his team at the University of Geneva play a vital role in the search for the hypothesized fundamental magnetic particle.
Precision with a Broad Benefit
Marco Valente is a PhD student, born in Ticino and is currently working at the University of Geneva. He is evaluating the performance of a method from which it is expected to improve important measurements of the ATLAS experiment at CERN. For his current studies, the 23 years old researcher has just been awarded with a poster prize given by the Swiss Physical Society (SPS).
Mohamed Rameez wins the CHIPP Prize 2016
The prize of the Swiss Institute of Particle Physics (CHIPP) 2016 goes to Mohamed Rameez. The 27-year-old neutrino researcher who just has earned his PhD at the University of Geneva has been awarded for his outstanding contributions to the IceCube Collaboration.
The deuteron too poses a mystery
The deuteron — one of the simplest atomic nuclei, consisting of just one proton and one neutron — is considerably smaller than previously thought. This finding was arrived at by an international research group that carried out experiments at the Paul Scherrer Institute, PSI. The new result is consistent with a 2010 study by the same group, in which the researchers measured the proton and found a significantly smaller value than previous research using different experimental methods. The result from 2010 formed the basis for what has been known since then as "the proton radius puzzle". The new measurement of the deuteron’s size has now given rise to an analogous mystery. It is possible that this will lead to an adjustment of the Rydberg constant, a fundamental quantity in physics. Another possible explanation is that a physical force as yet unknown is at work. For their experiments the researchers used laser spectroscopy to measure so-called muonic deuterium: an artificial atom consisting of a deuteron orbited by an exotic elementary particle known as a muon. The experiments took place at PSI because the world’s most powerful muon source, available here, was needed to produce sufficient muonic deuterium. The researchers have published their new study of the deuteron’s size in the renowned journal 'Science'.
Glimpses Beyond the Standard Model
A highlight of the traditional Nobel Laureate Meeting in Lindau, Germany, which ended on July 1st, was a distinguished panel on particle physics that tried to glimpse beyond the standard model.
In the front row of neutrino research
Over 30 Nobel Laureates will debate this year in Lindau, Germany with about 400 young scientists from nearly 80 countries. The 66th Lindau Nobel Laureate Meeting from June 26th to July 1st is dedicated to the field of physics with a special focus on particle physics including neutrino physics. Prof. André Rubbia (ETH Zurich) is one of the leading neutrino experts in Switzerland. In the interview the 50-year-old researcher gives a glance at the hot topics of current research in worldwide neutrino physics and highlights the contribution of Swiss particle physicists.
Is a window to New Physics about to open?
The Higgs particle was detected by the CERN large particle accelerator in 2012. Now there are hints that CERN’s worldwide unique particle accelerator will help physicists discover a new elementary particle. Excitement is rising.
"Particlephysics.ch" is now on the SCNAT portal
The outreach portal of CHIPP - the Swiss Institute of Particle Physics - has now been migrated to the new thematic portal of SCNAT on particle physics. This is an important step towards a better visibility of particle physics among the other fields of natural sciences.
Auch Kinder verstehen Teilchenphysik
Nein, ganz einfach ist Teilchenphysik nicht zu verstehen. Doch wenn man die richtigen Worte und Bilder findet, können auch Kinder schon eine Vorstellung von der Welt der Elementarteilchen gewinnen. Das zeigt die Sendung 'Rosanna checkt's' des Schweizer Fernsehens, die am 29. September ausgestrahlt wurde.
'Particle Fever' en lot de deux
L'Académie suisse des sciences naturelles a célébré son 200e anniversaire à Sion le dernier weekend de septembre. La tournée scientifique 'Recherche live' a passé quatre jours dans le chef-lieu du canton du Valais. La double projection du documentaire 'Particle Fever' au sujet de la découverte du Boson de Higgs a fait partie du programme d'anniversaire.
Open Air Kino Aarau
Vom 26. bis zum 29. August feiert die Akademie der Naturwissenschaften Schweiz (SCNAT) in Aarau mit der Wissenschaftstournee 'Forschung live' ihren 200. Geburtstag. Aus diesem Anlass wurde am Aarauer Open Air Kino der US-amerikanische Dokumentarfilm 'Particle Fever' über die Entdeckung des Higgs-Teilchens am CERN gezeigt. Ein Highlight des Filmabends setzte die Physikerin Lea Caminada (Universität Zürich). Die Forscherin sprach zum Auftakt der Filmvorführung über die Tätigkeit am CERN und über ihr Selbstverständnis als Naturwissenschaftlerin. Impressionen von einem gut besuchten Filmabend auf dem Gelände der Pferderennbahn Schachen in Aarau.
Das 'Higgs' nochmals neu entdecken
Am 23. August 2015 läuft im Rahmen der Wissenschaftstournee «Forschung live» am Aarauer Open Air Kino der Film 'Particle Fever' über die Entdeckung des Higgs-Teilchens. Live dabei: die Zürcher Teilchenphysikerin Lea Caminada. In einer einführenden Talkrunde wird die CERN-Wissenschaftlerin den Kinobesucherinnen und -besuchern über sich und ihre Arbeit als Physikerin Auskunft geben. In ihrer aktuellen Forschung befasst sich Lea Caminada mit Detektortechnologie und arbeitet darauf hin, die Eigenschaften des 2012 entdeckten Higgs-Teilchens noch besser zu verstehen.
Open Air Kino Luzern
Am 9. August 2015 wurde am Open Air Kino Luzern der Dokumentarfilm 'Particle Fever' (Regie: Mark Levinson) über die Entdeckung des Higgs-Teilchens am CERN gezeigt. Es war die erste Aufführung der amerikanischen Produktion in einem Schweizer Kino, noch bevor sie drei Tage später am Filmfestival in Locarno lief. Die Kinopremiere war Teil der Wissenschaftstournee 'Forschung live', mit der die Akademie der Naturwissenschaften Schweiz am zweiten Augustwochenende in Luzern ihren 200. Geburtstag feierte. Zum 'Forschung live'-Event in der Leuchtenstadt gehörten neben dem Filmabend eine Ausstellung am Kornmarkt in der Altstadt und beim Bahnhof, zudem Veranstaltungen in zahlreichen Luzerner Institutionen. Hier einige Fotoimpressionen von dem anregenden 'Particle Fever'-Filmabend vor der bezaubernden Kulisse des Luzerner Seebeckens.
L’alba di una «nuova fisica»
Da inizio giugno, dopo due anni di pausa tecnica, il Large Hadron Collider (LHC) – il potente acceleratore di particelle del CERN – è stato riattivato e ha ripreso a fornire nuovi dati sperimentali. I dati consentiranno agli scienziati di tutto il mondo di acquisire nuovissime conoscenze sulla struttura della materia. Uno dei fisici che partecipano ai lavori è Tobias Golling (39). Il fisico delle particelle, che ha completato la sua formazione nelle città di Friburgo, Heidelberg, Bonn e al Fermilab di Chicago, dall’autunno 2014 insegna presso l’Università di Ginevra con il titolo di «Associate Professor» ed è uno dei ricercatori dell’esperimento ATLAS per LHC. Secondo Golling i dati che l’LHC fornirà nei prossimi mesi e anni potrebbero far compiere un importante passo avanti alla concezione del mondo della fisica moderna.
Premio CHIPP 2015
Cosa sia a tenere insieme il mondo nell’intimo suo essere è la domanda che si pone Heinrich Faust, l’erudito protagonista della famosa opera teatrale di Johann Wolfgang von Goethe. Per trovare una risposta Faust si dà addirittura alla magia. Anche Lilian Witthauer di Basilea, esperta in fisica delle particelle, si occupa di quest’importante domanda nella sua tesi di dottorato e ha trovato le risposte non con l’aiuto della magia ma con esperimenti approfonditi sugli acceleratori di elettroni. Per l’ottima qualità del suo lavoro scientifico è stata insignita il 29 giugno con il premio CHIPP 2015.
200 anni SCNAT
Quest'anno l’accademia svizzera di scienze naturali (SCNAT) festeggia i 200 anni dalla sua costituzione. In occasione dell'evento sarà proiettato in agosto e settembre il film "La particella di Dio" sulla scoperta del bosone di Higgs, in tre città svizzere. La particella "trovata" nel 2012 al Cern di Ginevra è una delle scoperte scientifiche più spettacolari degli ultimi anni.
Hawking-Film: "La teoria del tutto"
Quando la scienza approda sul grande schermo, l'intento solitamente è di stupire il pubblico con grandi effetti speciali. Diverso il taglio dato alla pellicola inglese "La teoria del tutto", un film biografico sulla vita dell'astrofisico Stephen Hawking e sul suo rapporto con la prima moglie Jane, diretto da James Marsh e basato sulla sceneggiatura di Anthony McCarten. Il film narra il progressivo decadimento fisico del protagonista affetto da sclerosi laterale amiotrofica o SLA, e sottolinea come la moglie sopporti enormi sacrifici per curare il marito, fino al limite delle sue forze, e come gli rimanga fedele.
Palco di Ginevra
La tavola rotonda di mercoledì 10 dicembre con Ruth Durrer (professoressa di fisica all'Università di Ginevra) e con l'artista ginevrino Christian Gonzenbach prometteva di essere costruttivo e appassionato. La promessa è stata mantenuta. Il dibattito, dal titolo "Materia oscura - l'invisibile esiste", è stato moderato da Elisabeth Chardon, giornalista del quotidiano 'Le Temps'.
Les positrons gardent encore leur secret
Grâce à l'expérience AMS pour la mesure du rayonnement cosmique, les astrophysiciens espèrent en découvrir plus sur la mystérieuse matière noire dont notre univers doit être gorgé mais dont la nature demeure inexpliquée. Les derniers résultats de l'expérience AMS ne fournissent pas encore de découverte décisive, mais ils apportent, avec la participation de l'université de Genève, un aperçu dans le rayonnement cosmique d'une précision inconnue jusqu'à présent.
Particle Fever - il dibattito
Allo Swiss Science Center Technorama di Winterthur il fisico del CERN Hans Peter Beck, lo specialista in scienze della comunicazione Mike Schäfer e la psicologa sociale Clara Kulich hanno discusso sulle possibilità e sui limiti dell'insegnamento della fisica delle particelle al grande pubblico. Il dibattito ha preso spunto dal film-documentario sulla scoperta del bosone di Higgs "Particle fever" del regista americano Mark Levinson. La prima del film per la Svizzera tedesca è stata proiettata il 1° ottobre 2014 nell'Auditorium del Technorama.
Una visita agli eredi di Einstein: film 'Particle Fever'
Com'è la vita dei fisici moderni? A questa domanda cerca di rispondere Mark Levinson con il suo documentario "Particle Fever". La prima del film per la Svizzera tedesca sarà proiettata questo mercoledì nel Swiss Science Center Technorama di Winterthur. Abbiamo visto il film in anteprima. Una recensione.
Débat Neuchâtel
Le CERN à Meyrin près de Genève ou le projet Human Brain sur l'Arc lémanique sont deux paquebots qui concentrent de nombreux scientifiques et des moyens financiers importants. Au détriment de quoi ? La question a été débattue lors d'un débat à Microcity à Neuchâtel.
Eduard Kaser sulla Big Science
Il nuovo polo tecnologico Microcity è stato inaugurato a maggio 2014 a Neuchâtel. Il centro di ricerca, fortemente voluto dal Cantone di Neuchâtel e dal Politecnico di Losanna, aspira a divenire un centro di competenza nell’ambito della microtecnologia. Ma come si colloca Neuchâtel rispetto ai grandi progetti di ricerca come il Laboratorio europeo di fisica delle particelle di Ginevra (CERN) o lo Human brain project (Hbp), il progetto «faro» sul cervello umano finanziato dall'Unione europea e diretto dal Politecnico federale di Losanna? Ne parliamo con il dr. Eduard Kaeser, pubblicista scientifico di Berna.
Dibattito sul CERN
Durante la riunione annuale congiunta dell'Istituto Svizzero di Fisica delle Particelle (CHIPP) e della Società Svizzera di Fisica (SPS), è stato indetto il 2 luglio all'Università di Friburgo un dibattito con ospiti illustri che hanno discusso sull'"influenza del CERN sulla Svizzera e sulla società svizzera". In occasione del sessantesimo anniversario del Laboratorio europeo di fisica delle particelle (CERN), il dibattito ha trattato il tema dei grandi vantaggi così come delle opportunità mancate.
CHIPP Prize 2014
ETH doctoral candidate Marco Peruzzi has been awarded the CHIPP prize 2014 at the CHIPP annual meeting in Fribourg. The 26-year old physicist of Italian descent analyses the so called diphoton decay in the CMS experiment at CERN. His research is a valuable contribution to a better understanding of the Higgs-particle.
60 ans CERN
Olivier Schneider, prof. de physique des particules élémentaires à l'Ecole polytechnique fédérale de Lausanne (EPFL), est le président du 'Swiss Institute of Particle Physics', l'organisation qui comprend tous les physiciens des particules travaillant en Suisse. A l'occasion du 60ème anniversaire du CERN, Olivier Schneider explique l'importance du CERN pour la société suisse.
Auf der Suche nach dem 'sterilen' Neutrino
In wenigen Monaten startet am Fermilab bei Chicago (USA) ein aufsehenerregendes Experiment, mit dem Physiker abklären wollen, ob neben den drei bekannten Typen von Neutrinos ein vierter Typ besteht. Bemerkenswert an diesem Experiment ist auch die personelle Zusammensetzung der Kollaboration: Die rund 120 beteiligten Forscherinnen und Forscher stammen vorwiegend aus den USA, aber die wissenschaftliche Leitung des Experiments obliegt aber einem Schweizer, nämlich dem Berner Physikprofessor Michele Weber.
Katmandu chiama
Nel ricco Occidente la ricerca e la didattica universitaria sono un'ovvietà: in questi paesi esiste un ampio spettro di istituti per tutte le possibili discipline del sapere. Invece, nei paesi in via di sviluppo l'istruzione rimane ancora spesso un bene che scarseggia. Ciò vale anche per la fisica delle particelle. I rappresentanti del Laboratorio europeo di fisica delle particelle (CERN) di Ginevra si sono mossi con un'iniziativa privata per diffondere anche in Nepal l'amore per questa disciplina fondamentale.
L'expérience BOSS
Seuls quatre pour cent de notre univers se composent de matière inconnue. En revanche, la physique moderne est convaincue que la majeure partie de l'univers se compose d'énergie noire. Personne ne peut encore vraiment expliquer ce qu'est cette énergie noire. Un astrophysicien de l'ETH de Lausanne (EPFL) fournit quelques indices pour une meilleure compréhension du phénomène : le jeune chercheur de 26 ans Timothée Delubac analyse des données du ciel étoilé qui devraient permettre une meilleure compréhension de l'énergie noire à l'avenir. Au cours de derniers mois, Delubac a acquis de nouvelles connaissances fascinantes dans le cadre de l'expérience BOSS.
Kosmische Strahlung aus noch unbekannter Quelle
Seit dem 19. Mai 2011 ist das Alpha Magnetic Spektrometer (AMS) auf der Internationalen Raumstation ISS in Betrieb. Das Hightech-Messgerät funkt seither ständig Messdaten über die kosmische Strahlung zur Erde. Nach knapp zwei Jahren macht das Experiment mit spektakulären Ergebnissen auf sich aufmerksam.
Dibattito Liceo di Locarno
Ma serve? La domanda è legittima. Miliardi di franchi investiti per scoprire una nuova particella e…? Già: e poi? Che cosa ne deriva per il miglioramento della vita delle persone? Insomma, a che serve la fisica? Quali ricadute ha nell’ambito della medicina, per esempio? Proprio di questo hanno discusso per un paio d’ore, nel pomeriggio di venerdì 4 aprile, Martina Bucciantonio e Franco Cavalli, moderati dal giornalista Gerhard Lob, in un appassionante confronto dal titolo “Materia viva o materia morta - La ricerca in medicina, la ricerca in fisica”, davanti a una cinquantina di studenti di quarta del Liceo di Locarno.
Neutrino
Ogni dubbio è fugato: i neutrini muonici possono trasformarsi in neutrini tauonici. Gli scienziati impegnati nell'esperimento OPERA che si svolge nei laboratori sotterranei del Gran Sasso in Italia, e vede tra gli altri la collaborazione dei fisici dell'Università di Berna, hanno dimostrato questo fenomeno con una precisione finora sconosciuta. Il risultato è stato presentato nell'ambito di un seminario scientifico ai Laboratori Nazionali del Gran Sasso.
Protonterapia
In Svizzera sono relativamente poche le giovani donne che studiano fisica. Diversamente in Italia, dove lo studio della fisica per le donne è una cosa che avviene più con naturalezza. Non è un caso, quindi, che è stato un fisico italiano donna Fabiola Gianotti che a nome dell'esperimento ATLAS al CERN ha annunciato nel Luglio 2012 la scoperta della particella di Higgs. Anche Martina Bucciantonio è un fisico italiano, e anche lei lavora al CERN. All'inizio della sua carriera la giovane scienziata si è occupata soprattutto di questioni fondamentali, tra cui l'analisi dei dati. Ora nella sua tesi di dottorato si dedica alle applicazioni mediche della fisica. Il 4 aprile Martina Bucciantonio prenderà parte ad un dibattito al Liceo cantonale di Locarno con il noto oncologo Franco Cavalli sul tema: "Materia viva o materia morta - La ricerca in medicina, la ricerca in fisica."
Was die Teilchenphysik heute weiss
Dr. Hans Peter Beck, Privatdozent für Physik an der Universität Bern und Teilchenphysiker am Europäischen Labor für Teilchenphysik (CERN) in Genf gewährt in einem Interview mit der Webplattform Xecutives.net Einblick in das Weltbild der modernen Physik. Er erläutert die Hintergründe, die 2012 zur Entdeckung des Higgs-Teilchens führten, er spricht über die Geheimnisse der Dunklen Materie und erklärt aus seiner Sicht, was Physik und Mathematik verbindet.
Future Circular Collider
The Higgs boson was discovered in the particle accelerator LHC (Large Hadron Collider) at CERN in 2012 – and scientists are expecting to gain more groundbreaking insights from this large research facility in Geneva during the next twenty years of its operation. Nevertheless physicists are already working meticulously on a new and even bigger accelerator with the name FFC that shall make particle collisions of even higher energy possible. Stefan Antusch, Professor for Theoretical Physics at the University of Basel, explains the state and the aim of this new project.
Top-Quark
Sieht man vom Higgs-Teilchen ab, war das Top-Quark das letzte Elementarteilchen des heute gültigen Standardmodells, das experimentell nachgewiesen wurde. Dieser Nachweis gelang 1995 am Fermilab unweit von Chicago/USA. Wissenschaftlern dieser Forschungseinrichtung ist nun eine weitere Entdeckung rund um das Top-Quark gelungen: Sie haben einen neuen, sehr selten zu beobachtenden Weg experimentell nachgewiesen, auf dem das Top-Quark erzeugt werden kann.
Debatte Brugg
Teilchenphysikerinnen und Teilchenphysiker leisten mit ihrer Forschung einen Beitrag zum Verständnis der Welt. Sie tragen aber oft auch bei zur Weiterentwicklung der Wirtschaft durch innovative Produkte. Diesen Aspekt hat am 12. Februar 2014 eine Podiumsdebatte am Hightech Zentrum Aargau in Brugg beleuchtet, an der Roland Horisberger, ETH-Professor und Leiter der Hochenergiephysik am Paul Scherrer Institut in Villigen/AG, mit Wirtschaftsvertretern diskutierte. Am 23. April 2014 fand mit den Teilnehmern eine Internetdiskussion (Hangout) zum gleichen Thema statt (die Aufzeichnung finden Sie auf dieser Seite ganz unten). Podiumsgespräch und Hangout waren Veranstaltungen im Rahmen des vom Schweizerischen Nationalfonds geförderten Projekts 'Interactions'.
Proton accelerator
Materials research, particle physics, molecular biology, archaeology – for the last forty years, the Paul Scherrer Institute’s large-scale proton accelerator has made top-flight research possible in a number of different fields. Initially, it was supposed to help clarify issues in particle physics by producing pions. Later, the facilities around the accelerator were expanded so that its proton beam could also be used to generate neutrons and muons for a wide range of experiments – frequently in research fields that nobody had even considered during the construction of the plant. Today, about twenty experiments can take place simultaneously here. The PSI’s large proton accelerator currently delivers the most powerful proton beam in the world. The experience that the researchers and engineers at the PSI have gained at the facility also formed the basis for the development of proton therapy, which has already been used to treat several thousand cancer patients successfully at the PSI.
Quantencomputer
Einzelne Ionen als Qubits eines zukünftigen Quantencomputers lassen sich sehr effizient mit Hilfe von Laserstrahlen kühlen und detektieren. Ein neu gestartetes Projekt möchte dieses Wissen nun auch zur Kühlung und Detektion einzelner (Anti-)Protonen nutzbar machen. Bei erfolgreicher Demonstration bietet sich eine hochinteressante Perspektive: die Anwendung der experimentellen Techniken zur Kühlung von Antiprotonen am BASE-Experiment am CERN in Genf.
Antiwasserstoff
Einem Forscherteam am Europäischen Labor für Teilchenphysik (CERN) in Genf ist es erstmals gelungen, einen Strahl aus Antiwasserstoff-Atomen herzustellen. Dies ist ein wichtiger Zwischenschritt hin zu einem besseren Verständnis von Antimaterie. Dieses Verständnis könnte eine Grundlage schaffen, damit Physiker in Zukunft einmal die grosse Frage beantworten können, warum unser Universum und wir Menschen aus Materie, nicht aber aus Antimaterie bestehen. Stefan Ulmer, der im Rahmen des ASACUSA-Experiments Antiwasserstoff untersucht, erläutert die aufsehenerregenden neuen Erkenntnisse.
Forschungssoziologie
Die österreichische Psychologin Dr. Clara Kulich (32) arbeitet an der Universität Genf und hat zusammen mit einem Kollegen untersucht, wie Forscherinnen und Forscher im Forschungszentrum CERN zusammenarbeiten. Die Resultate haben sie in Genf vorgestellt.
Chercheur des muons
Comment un physicien ou une physicienne trouve un fait dont la connaissance pose notre monde sur une nouvelle fondation ? Une réponse simple est : un travail de fond. Andreas Knecht, jeune chercheur suisse, le sait aussi. Il met actuellement en place une expérimentation à l'Institut Paul Scherrer (PSI) à Villigen dans le canton d'Aargau. Cette expérimentation pourrait bouleverser les fondements de notre image du monde. Toutefois, le physicien des particules doit encore faire preuve de patience en attendant des résultats. Beaucoup de patience. Au moins une décennie. (image: Andreas Knecht au sein de l'Institut Paul Scherrer. Foto: BV)
Concours du CERN
Le CERN, ce n’est pas que le Grand collisionneur de hadrons. Dans le cadre de ses activités de recherche et de développement, un grand nombre d’expériences, qui touchent à de multiples domaines d’étude, allant de la structure interne du proton aux mystères de l’antimatière, sont réalisées grâce à des lignes de faisceau avec cibles fixes. En 2014, à l’occasion de son 60e anniversaire, le CERN va mettre une ligne de faisceau et toutes ses installations à la disposition d’un groupe d’élèves du secondaire, pour leur permettre de mener à bien l’expérience de leur choix. Ces chercheurs en herbe seront encadrés par des physiciens, des ingénieurs et des spécialistes de l’acquisition et de l’analyse de données. Comme pour toutes les expériences du CERN, le temps de faisceau sera attribué selon la valeur scientifique de la proposition.
Mesonenzerfall
Forschende des Paul Scherrer Instituts haben aus den am CMS-Detektor am CERN gemessenen Daten erstmals den sehr seltenen Zerfall des Bs-Mesons in zwei Myonen mit hinreichender Sicherheit beobachtet und seine Häufigkeit bestimmt. Ihre Ergebnisse stimmen sehr gut mit den Voraussagen des Standardmodells der Teilchenphysik überein.
Doppio dialogo Neufeld
Il fisico Jonas Knüsel (SWAN Isotopen AG) e la dottoressa Sabine Weidner specializzata in medicina nucleare all’Inselspital di Berna hanno discusso, presso il Liceo Neufeld di Berna, sui vantaggi e le prospettive della fisica medica, in particolare nel settore della diagnostica del cancro. In precedenza c’era già stato un dibattito su Internet (Hangout On Air) sullo stesso argomento. Questo è il secondo di sette “Double dialogues” nell’ambito del progetto “Interactions” finanziato dal Fondo Nazionale Svizzero. Entrambe le edizioni di questa manifestazione sono state intitolate : “La fisica fa bene!” .
Doppio dialogo Rämibühl
Il fisico Laura Baudis (Università di Zurigo), il teologo Luzius Müller (Basilea) e il poeta tedesco Jochen Winter hanno discusso sul significato e la rilevanza sociale della fisica moderna di fronte a 400 studenti del liceo scientifico (MNG) di Rämibühl . I partecipanti a questa tavola rotonda erano già intervenuti il 22 Ottobre a un dibattito online (Hangout On Air). Per entrambe le manifestazioni si tratta del primo di sette “Double dialogues” nell’ambito del progetto “Interaction” finanziato dal Fondo Nazionale Svizzero. Ambedue i dibattiti sono stati intitolati: “Attraverso quale linguaggio comprendiamo il mondo?”.
Volkshochschule
Günther Dissertori, Professor für Teilchenphysik an der ETH Zürich, sprach an der Volkshochschule Zürich vor interessierten Laien über das Phänomen Supraleitung. Im Interview berichtet er über seine Erfahrungen bei dem Vortrag – und erklärt, was Supraleitung mit dem Higgs-Mechanismus gemeinsam hat.
Nobelpreis 2013
Die Königlich-Schwedische Akademie der Wissenschaften hat den diesjährigen Nobelpreis für Physik an Peter Higgs und François Englert vergeben. Wir befragten dazu Heinrich Leutwyler, bis zu seiner Pensionierung Professor für theoretische Physik an der Universität Bern. Leutwyler, der am 12. Oktober seinen 75. Geburtstag feiern kann, hat international anerkannte Beiträge zur Entwicklung der Quantenchronodynamik geleistet. Er hat die Entwicklung des modernen Standardmodells der Teilchenphysik von Anfang an miterlebt und in Teilen mitgeformt. Im Interview erläutert der Berner Physiker den historischen Kontext, der zur Entdeckung des Higgs-Mechanismus führte, und er erläutert die Bedeutung des Nobelpreises für die heutige Gesellschaft.
Beschleuniger im Bonsai-Format
Computerchips brauchen dank technischem Fortschritt immer weniger Platz. Dieser Trend zur Miniaturisierung könnte bald auch die Teilchenphysik erfassen. US-amerikanische Forscher arbeiten an einer neuartigen Technik, die längerfristig zu kleineren und günstigeren Beschleunigern in der physikalischen Grundlagenforschung, aber auch für medizinische Anwendungen führen könnte.
„Zur Zeit herrscht ein goldenes Zeitalter“
Das Jahr 2013 machte mit aufsehenden Entdeckungen von sich reden: mit der Entdeckung des Higgs-Teilchens im Juli 2013, und zuvor schon im März 2013 mit der präzisen Messung der Fluktuationen in der Temperaturverteilung bei der Entstehung des Universums aus dem Urknall durch den Planck-Satelliten. Wir stellten dem in Basel geborenen Physiker und heute an der Universität Genf tätigen Kosmologen Martin Kunz ein Paar Fragen am Rande der "Nacht der Europäischen Forscher" Origins 2013.
Europäische Strategie
Klaus Kirch, Vorsitzender des Swiss Institute of Particle Physics CHIPP, Leiter der Teilchenphysik am Paul Scherrer Institut PSI und Physikprofessor an der ETHZ, beleuchtet in einem Autorenbeitrag die Europäische Strategie für Teilchenphysik und erläutert deren Konsequenzen aus Schweizer Sicht. Kirch betont dabei die Bedeutung des CERN-Standorts Genf für die Schweizer Teilchenphysik und plädiert für die Einrichtung einer zweiten Schweizer Professur für Beschleunigerphysik. Zugleich signalisiert er Offenheit für Diskussionen zum Projekt eines neuen Linearbeschleunigers in Japan und ruft dazu auf, international die Kräfte für ein 'long-baseline' Neutrinoexperiment zu bündeln.
Fabricant de bombes pour une bonne raison
Le physicien atomique suisse Felix Bloch a également participé au projet Manhattan, la construction de la bombe atomique américaine pendant la Seconde Guerre Mondiale. L'écrivain Alex Capus reconstitue l'itinéraire biographique du scientifique juif dans son nouveau roman. Dans l'histoire de sa vie, il montre que les découvertes physiques de Bloch ont servi à des armes de destruction massive mais ont été également d'une utilité considérable pour la médecine.
Einstein & Grossmann
Zwischen Physik und Mathematik – also zwischen der Beschreibung der physischen Welt und den Strukturen mathematischen Denkens – besteht seit jeher ein Spannungsfeld. Norbert Straumann, emeritierter Professor für Theoretische Physik der Universität Zürich, hat am Beispiel des Physikers Albert Einstein und des Mathematikers Marcel Grossmann dargestellt, wie sich die beiden Disziplinen im Idealfall anregen und ergänzen. Die Zusammenarbeit der an der ETH Zürich tätigen Wissenschaftler führte von 1912 bis 1915 zur Entstehung der Allgemeinen Relativitätstheorie.
Contatto
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