Particle Physics

Particle physics probes the basic building blocks of matter and their interactions, which determine the structure and properties of the extreme diversity of matter in the universe. It aims at explaining what holds the world together in its most fundamental constituents.

Proton-Proton Collision (LHC, CERN)
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Proton-Proton Collision (LHC, CERN)
Proton-Proton Collision (LHC, CERN)

Modern physics relies on an elegant «Standard Model of particle physics», a quantum field theory based on three symmetries and a symmetry breaking. This theory describes and explains magnificently all experimental results obtained so far. With the discovery of the Higgs particle in 2012 at the Large Hadron Collider at CERN, the last missing piece of the Standard Model has been experimentally confirmed. Experiments at CERN and at other international laboratories now continue to test the validity and limits of the Standard Model in ever widening scope. However, for a comprehensive understanding of the laws of nature a theory beyond the Standard Model is needed, which should include gravitation and explain the presence of dark matter and dark energy in the universe.

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Extract from the computer simulation created by Dr. Joachim Stadel and other scientists from the University of Zurich: every yellow dot is a halo of dark matter in which a galaxy is embedded. The dark 'threads' are places in the universe with a high density of dark matter, while in the light spots ('voids') only few dark matter is present. Photo: B. Vogel
  • 26.04.2018
  • CHIPP
  • news

Measuring the Invisible Cosmos

In 2021, the European research satellite Euclid will be launched into space. With Euclid, scientists from Switzerland and 15 other countries want to gain a better understanding of dark matter and dark energy. These two 'things' fill large parts of the universe in the view of modern astronomy, but neither dark matter nor dark energy have been directly observed so far. Researchers at the University of Zurich have prepared a complex computer simulation of dark matter in preparation for the Euclid mission. This mission is of great interest not only to astronomers and astrophysicists but also to particle physicists since particle physics is on the quest for the discovery of the nature and structure of dark matter with its own experiments.
Group photo from the SWICH workshop that took place from 3 to 6 April at the Center Loewenberg. Photo: Steven Schramm
  • 16.04.2018
  • CHIPP
  • news

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.
CERN & Beauty photo
  • 12.04.2018
  • news

Images of particle physics

These days, the Swiss-Italian documentary 'CERN and the sense of beauty' will be screened in selected Swiss cinemas. The work of the Italian director Valerio Jalongo combines images from the particle physics research laboratory with nature photographs and with works of art, leading to a subjective and idiosyncratic meditation on knowledge and beauty.
Claudia Merlassino studied physics in Milan at the same institute as today's CERN director Fabiola
  • 26.03.2018
  • CHIPP
  • news

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.
2018
Feb 23
2018
Jun 1
  • seminar
  • Bern

Seminars about Microwavephysics and Atmospheric Physics

Fridays at 10:15 in room A97, Sidlerstrasse 5, 3012 Bern
2018
Feb 26
2018
Jun 7
  • University of Bern
  • seminar
  • Bern

Seminar series: Climate and Environmental Physics (CEP)

Mondays at 16:15 in room B5, Sidlerstrasse 5, 3012 Bern

Swiss physicists in dialog with the society

Swiss physicists want to make their fascinating research understandable to the interested public and to debate its meaning for our society together with representatives of other fields.