Group for Cooperation with CERN
Department of Low-Temperature Physics
V Holešovičkách 2, 180 00 Praha 8ENCZ |
Welcome to the web page of our group
Our group in the Department of Low-Temperature physics is involved in two experiments at CERN,
COMPASS and
AMBER.
We focus mainly on data analysis, especially on hadron structure in terms of parton distributions (TMD PDFs and GPDs); and we are co-responsible for data acquisition.
In case you are interested in a thesis, student or post-doc project, please contact us.
In these pages, you can find our publications and
talks,
grants,
and also group members.
News
- 2024-09-30: Congratulations to Markéta Pešková for defending her PhD thesis on hard exclusive π0 production!
- 2024-08-09: We enjoyed the COMPASS-AMBER software and MC summer school.
- 2024-07-24: Large conference ICHEP 2024 in Prague is over. We participated to the organization, Markéta Pešková gave a talk and Martin Zemko presented a poster.
- 2024-06-12: Congratulations to Jakub Tatárik and Júlia Križanováova for defending their theses, passing exams and becoming Bachelors!
- 2024-07-06: Jan Matoušek gave an invited talk at Transversity workshop in Trieste, making an overview of SIDIS measurements worldwide.
- 2024-05-08: Two COMPASS papers with our significant involvement have been accepted to Physics Review Letters: High-statistics measurement of Collins and Sivers asymmetries for transversely polarised deuterons, Final COMPASS results on the transverse-spin-dependent azimuthal asymmetries in the pion-induced Drell–Yan process
- 2024-04-30: We have selected two excellent candidates for the Ph.D. studium. We wish them good luck at the faculty admission exams. The original call is available here: COMPASS topic, AMBER topic.
- 2024-04-11: Vendula Benešová presented our latest results at DIS conference in Grenoble, see Talks.
- 2024-04-10: AMBER 2024 run has started, we are collecting data to measure the antiproton production cross section in pp and pd collissions.
- 2024-03-20: The first Physics at AMBER workshop (PAW) brought together experimentalists and theoreticians to discuss present and future measurements with the unique AMBER apparatus.
About us
 |
| The experimental hall. |
COMPASS and
AMBER
are fixed-target experiments using 100–200 GeV muon or hadron beams,
focused on the structure of matter, more precisely on properties of the strong interaction.
COMPASS finished data-taking in 2022 and is now in analysis phase.
AMBER started taking data in 2023 and has approved programme for several years ahead.
In both collaborations, we are one of the groups responsible for the data acquisition, data processing and other IT systems.
Our members fulfill quite important roles, for example run or analysis coordination and data acquisition system on-call.
In COMPASS, we were co-responsible for the polarised target, a complex device that exploits several interesting low-temperature and spin physics phenomena.
We are involved in the development of a modern 'trigger-less' data acquisition with continuous readout and high-level software trigger for AMBER.
We are active in experimental data analyses, focusing mainly on hadron structure in terms of parton distributions (TMD PDFs and GPDs).
The questions we are trying to answer include:
Are quarks polarised within hadrons?
How large is their intrinsic transverse momentum?
What is the transverse extension and orbital angular momentum of partons in hadrons?
To answer them, we analyze mainly COMPASS hydrogen target data from 2016–2017 and with transversely polarised deuterium from 2022.
In the data, we study hadron production in deep-inelastic scattering and also hard exclusive meson production.
Currently, we are aiming to improve the results by mastering the final-state-hadron identification with RICH, which should allow to separate the contribution of different quark flavours.
We are also working on the antiproton production cross section in the collissions of protons with helium, hydrogen and deuterium (AMBER 2023 and 2024 data), which are an important input for cosmology models and dark matter searches.
Finally, we are interested in kaon-induced Drell–Yan process as a tool to study kaon structure.
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| IWHSS 2023 in Prague. |
In June 2023 we organized, together with Czech Technical University and COMPASS collaboration, a confenerce
IWHSS 2023. In 2024 we participated in organizing ICHEP 2024 in Prague.