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Dr Constantinos Skordis (CEICO, Institute of Physics, Czech Academy of Sciences)19/06/2026, 09:00
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Dr Martin Rybar (Charles University (CZ))19/06/2026, 09:10
What are the smallest building blocks of matter, and how can we study them with one of the largest scientific instruments ever built? This talk introduces selected physics activities pursued under the FORTE project within the ATLAS experiment at CERN. We will look at how ATLAS uses record-breaking LHC data to test our understanding of nature, search for signs of new particles, study the...
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Shubhangi Maurya (Charles University, Prague)19/06/2026, 10:05
Understanding the matter–antimatter asymmetry of the universe requires precise measurements of CP violation in rare B meson decays. Penguin-dominated decays, proceeding through quantum loop diagrams, are uniquely sensitive to potential New Physics that could modify the expected CP asymmetry. We present a study of B⁰ → ωK⁰_s at Belle II, establishing a full analysis framework using Monte Carlo...
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Dr Eva Maria Martins Dos Santos (Czech Academy of Sciences (CZ))19/06/2026, 10:55
Cosmic rays are the most energetic particles observed in the Universe.
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Although extremely rare, a handful of events with energies exceeding
$10^{20}\,\mathrm{eV}$ have been detected. This corresponds to about
$16\,\mathrm{J}1$ concentrated in a single particle and to an equivalent
thermal energy scale of approximately $10^{24}\,\mathrm{K}$, comparable
to that of the Universe roughly... -
Vlastimil Jilek19/06/2026, 11:25
This work presents the characterization and gain calibration of large-area hemispherical photomultiplier tubes (PMTs) utilized in the FAST telescope for ultra-high-energy cosmic ray detection. Specifically, the Hamamatsu R5912-03 and the Hamamatsu R14688 models were thoroughly tested inside a climate chamber across a temperature range of -20°C to +40°C. The gain calibration was performed using...
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Tomáš Tměj (Charles University)19/06/2026, 11:50
JUNO, the Jiangmen Underground Neutrino Observatory, is a 20 kton liquid scintillator neutrino oscillation experiment in southern China. The experiment started taking data in 2025.
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The experiment has many goals and ambitions e.g. determining the neutrino mass hierarchy, measurement of the oscillation parameters with unprecedent precision. In its rich physics program precise determining energy... -
Dr Jacob Leedom (FZU)19/06/2026, 12:10
I will discuss how axions can be used as a probe of string
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theory via cosmological and terrestrial experiments. The focus will
largely be on gravitational wave production via the spectator mechanism
and how quantum gravity constrains the possibilities. I will also
discuss how the QCD axion can imply a bound the compactification volume
and non-perturbative particle production axions in the... -
Katarina Krizkova Gajdosova (Czech Technical University in Prague (CZ))19/06/2026, 13:30
In this talk, an overview of selected physics topics and recent results from the ALICE Collaboration will be presented, with a particular focus on measurements pursued within the FORTE project. Specifically, results on strange-baryon enhancement in jets in Pb–Pb collisions will be discussed as a probe of the properties of the quark–gluon plasma (QGP). Measurements related to jet quenching and...
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Artem Kotliarov (Czech Academy of Sciences (CZ))19/06/2026, 14:15
This analysis searches for jet-quenching effects in OO collisions at $\sqrt{s_{\mathrm{NN}}}=5.36$ TeV using semi-inclusive hadron-jet correlations. Event activity (EA) is characterised primarily by FT0, while ZDC observables are used to test whether the EA selection retains sensitivity to collision geometry. A clear non-linear correlation between FT0 and ZDC signals indicates that FT0-based...
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Mr David Vokrouhlicky (FZU)19/06/2026, 14:40
Modern cosmology requires repeated evaluations of complex theoretical
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predictions for inference, forecasts, and tests of physics beyond ΛCDM.
Symbolic regression provides a fast and accurate way to build surrogate
models while retaining compact analytical expressions that are
transparent, interpretable, and easy to implement.
I will present applications of symbolic regression to... -
Mr Atabak Jalali (FZU)19/06/2026, 15:00
Ghosts frequently emerge in alternative theories of gravity. They are degrees of freedom with wrong-sign kinetic terms, and the common lore is that ghostly degrees of freedom lead to dynamical instabilities, so-called runaways. In quantum mechanics, ghosts are commonly believed to lack physically relevant quantum descriptions. However, ghosts can be benign both classically and quantum...
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Shefali Negi19/06/2026, 15:50
The FRAM (F/Photometric Robotic Atmospheric Monitor) telescopes
are small robotic instruments deployed at astroparticle physics
observatories for continuous atmospheric monitoring using wide-field
stellar photometry. At the Cherenkov Telescope Array Observatory (CTAO),
FRAM measures the vertical aerosol optical depth (VAOD) at optical
wavelengths.We extend the original single...
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Marjan Cirkovic (Charles University (CZ))19/06/2026, 16:10
The NA62 experiment at CERN is a fixed-target experiment located in the North Area of the SPS accelerator complex.
Its primary goal is the precise measurement of the ultra-rare kaon decay K+→π+ννˉ,
one of the most sensitive probes of physics beyond the Standard Model.During Run 1 and the ongoing Run 2 data-taking periods, NA62 has collected an unprecedented sample of charged kaon...
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