CZ₊SK 2023 HEP workshop

Session

Session III

28 Jun 2023, 13:10

Poslucháreň F1, Fakulta matematiky, fyziky a informatiky

Conveners

Session III

• Brano Sitar (Comenius University (SK))

33. Alice experiment - history, present and future

Karel Safarik (Czech Technical University in Prague (CZ))

28/06/2023, 13:10

In the presentation the development of the Alice experiment at the LHC will be described, starting from the first sketches, Letter of Intent and Technical Proposal designs, and finally the detector setup as built in 2009. The talk will continue with the main physics results of run-1 and run-2. During LS2 the Inner Tracking System (ITS) was completely replaced with a new silicon pixel tracker...

34. Produkcia podivnosti v Xe–Xe zrážkach pri energii 5,44 TeV na experimente ALICE

Natalia Dzalaiova (Comenius University (SK))

28/06/2023, 13:30

Jednou z popredných oblastí štúdia fyziky vysokých energií je štúdium silne interagujúcej hmoty, kvark-gluónovej plazmy. Zvýšená produkcia podivných častíc bola jedna z prvých navrhnutých signatúr tohto stavu. V práci sa zaoberáme produkciou multi-podivných baryónov (Ξ− a Ω−) a ich antičastíc meraných experimentom ALICE na LHC v Xe–Xe zrážkach pri energii 5,44 TeV. Porovnanie získaných...

19. Helicity and vorticity in heavy-ion collisions and hyperon polarization

Evgeni Kolomeitsev

28/06/2023, 13:50

Heavy-ion collisions at center-of-mass nucleon collision energies 2.3--11.5 GeV are analyzed within the parton-hadron-string dynamics (PHSD) transport model. After the separation of spectator nucleons, the momentum distributions of particles constituting a fireball are fluidized and the energy and baryon number densities, temperature, and velocity fields are obtained in the Landau frame. It is...

24. Non-critical particle number fluctuations in heavy-ion collisions

Boris Tomasik (Univerzita Mateja Bela (SK))

28/06/2023, 14:10

In the QCD phase diagram, vicinity of the critical point is accompanied
with big changes of the susceptibilities. They should manifest themselves in the moments of the number distribution for conserved quantum numbers, e.g., the baryon number. Unfortunately, detectors cannot measure the baryon number, but only the number of stable protons. Also, in a real experiment, detectors cover just a...

7. Next-generation multi-fluid hydrodynamics for energies from few to tens of GeV

Jakub Cimerman (Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University)

28/06/2023, 14:30

The hydrodynamic modelling of heavy-ion collisions at energies from few to tens of GeV per NN pair brings new challenges as compared to simulations at top RHIC or LHC energies. The contraction of the incoming nuclei is much weaker resulting in a long inter-penetration phase and a more complex initial-state geometry. Conventional hydrodynamic models, where the fluid phase starts at a fixed...