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28/06/2023, 08:30
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Tomas Davidek (Charles University (CZ))28/06/2023, 08:40
The Higgs boson discovery by the ATLAS and CMS experiments at the LHC is briefly reminded. The contribution focuses on the summary of the recent results, with the emphasis on specific measurements that the Prague group was strongly involved in: observation, discovery and precision measurement of the Higgs boson decay to the pair of tau-leptons and searches for lepton-flavour-violating decays H...
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Pavol Bartos (Comenius University (SK))28/06/2023, 09:00
The latest ATLAS results on the tt-bar production charge asymmetry will be presented along with the asymmetry measurements in tt-gamma and ttW final states.
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Pavel Reznicek (Charles University (CZ))28/06/2023, 09:20
Although ATLAS is not specialized in B-physics, its performance (namely of the tracking and muon system) allows for competitive B-physics measurements. The talk will overview the results of the ATLAS B-physics group and the methods used to perform the analyses. Performance expected at HL-LHC will also be mentioned.
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Vojtech Pleskot (Charles University (CZ))28/06/2023, 09:40
The ATLAS Collaboration has recently released results of a search for an excited tau lepton. It is based on the LHC Run 2 data and it exploits 13 TeV proton-proton collisions with two hadronically decaying tau leptons and at least two jets in the final state. It is the first dedicated search for the excited tau lepton at the LHC. In the same final state, ATLAS also searched for a leptoquark...
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Jakub Bucko (Charles University (CZ))28/06/2023, 10:00
V současné době je již naprosto zřejmé, že časové detektory budou tvořit zásadní komponentu v dalším rozvoji detekčních zařízení, a to nejen ve fyzice vysokých energií. Mikrokanálkový fotonásobič,
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Micro Channel Plate PhotoMulTiplier (MCP-PMT) je velmi rychlý (a velmi drahý) fotonásobič s rozmanitým využitím a časový detektor na něm založený představuje v současnosti to nejlepší, z pohledu... -
Tomas Blazek (Comenius University (SK))28/06/2023, 10:45
We will provide a review of potential signals of Beyond Standard Model Physics in flavor changing neutral current (FCNC) processes and latest NA62 results.
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Zdenko Hives (Charles University (CZ))28/06/2023, 11:05
During the years 2016-2018 the NA62 experiment at CERN collected the world’s largest dataset of charged kaon decays. This lead to the observation of the $K^+→π^+\nu\bar\nu$ decay and the leading measurement of its branching fraction at the level of ~$10^{-10}$. In this talk the NA62 experiment reports recent results from analyses of $K^+→π^0e^+\nu\gamma$ (Ke3g), $K^+→π^+µ^+µ^−$ (Kpimm) and...
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Karol Kampf (Charles University (CZ))28/06/2023, 11:25
I plan to shortly overview the pi0 decay processes and discuss some relevance in experimental measurements and phenomenological applications.
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Matej Haviernik (Charles University (CZ))28/06/2023, 11:45
Future Circular Collider (FCC) is a 100 km long particle collider to be built around the year 2040 in the CERN laboratory. The first stage of operation is going to be a lepton collider FCC-ee which aims to test the Standard model with unprecedented precision at maximal central energies of 365 GeV. Neutral pions originating from such collisions are crucial for reconstructions of particles such...
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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...
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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...
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Evgeni Kolomeitsev28/06/2023, 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...
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Boris Tomasik (Univerzita Mateja Bela (SK))28/06/2023, 14:10
In the QCD phase diagram, vicinity of the critical point is accompanied
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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... -
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...
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