High Energy Physics Seminar
2006/2007 | 2007/2008 | 2008/2009 | 2009/2010 | 2010/2011 | 2011/2012 | 2012/2013 | 2013/2014 | 2014/2015 | 2015/2016 | 2016/2017 | 2017/2018 | 2018/2019 | 2019/2020 | 2020/2021 | 2021/2022 | 2022/2023 | 2023/2024 | 2024/2025
2024-11-15 (Friday)
room B2.38, Pasteura 5 at 11:30 
prof. dr hab. Krzysztof Doroba (IFD UW)CMS measurement of the W boson mass in proton-proton collisions at √s =13 TeV
Precision tests of Standard Model (SM) are very important part of LHC scientific program. Since Higgs discovery and determination of its mass by ATLAS and CMS all the parameters of electroweak (EW) sector of the SM are now constrained by experimental measurements. Established disagreement between W boson mass measurement and SM prediction could be a tip towards physics beyond the SM (BSM). In the seminar the recent W boson mass measurement by Compact Muon Collaboration will be presented (m_W=80 360.2±9.6 MeV) with the special emphasis on its accuracy and the way to achieve it.
2024-11-08 (Friday)
room B2.38, Pasteura 5 at 11:30
prof. Krzysztof Piotrzkowski (AGH, Kraków)An experiment for electron-hadron scattering at the LHC
The proposed LHeC facility will provide electron-proton (nucleus)collisions with (per nucleon) instantaneous luminosities around 10^34(10^33) cm^-2s^-1 by colliding a 50 GeV electron beam from a highlyinnovative energy-recovery linac system with the LHC hadron beams,concurrently with other experiments for hadron-hadron collisions. TheLHeC scientific programme is very complementary to the HL-LHC one andwould also significantly enhance it. In this talk, I will summarize theLHeC research scope and present the status of accelerator and detectordesigns, and discuss future developments as well as an exciting path forthe LHeC realization.
2024-10-25 (Friday)
room B2.38, Pasteura 5 at 11:30
dr Washington Rodrigues De Carvalho jr. (IFD UW)Dependence of the radio emission of air showers on the cosmic ray primary particle composition
We will start with brief introductions to Cosmic Rays (CR),extensive air showers and their radio emission. We will explore the originsof the dependence of the air shower development on the primary CR composition and how it affects the radio emission. We will then proceed todescribe in more detail our newest work regarding a strong composition dependence on the measured radio signal amplitudes at ground level. Thissimple, yet historically overlooked dependence can be explained in terms of two competing scalings of the measured electric field that depend on theposition of the shower maximum (Xmax) in the atmosphere. This dependence can be used to directly infer the CR primary composition, even on a non-standard event-by-event basis.
2024-10-18 (Friday)
room B2.38, Pasteura 5 at 11:30
prof. dr hab. Barbara Badełek (IFD UW)Overview of the spin programme of COMPASS
The purpose of the COMPASS facility is a study of hadron structure and spectroscopy with high energy hadron and (polarised) muon beams.In the spin programme polarised proton and deuteron targets were used in inclusive and semi-inclusive deep-inelastic reactions as well as in the Drell-Yan process. Deeply virtual Compton scattering and hard exclusive meson muoproduction were studied using an unpolarised proton target.A panorama of COMPASS results on 1D and 3D nucleon structure, based on the invited talk delivered at the "Diffraction and Low-x 2024" conference in Trabia (Italy), will be presented.
2024-10-11 (Friday)
room B2.38, Pasteura 5 at 11:30
Magdalena Posiadała-Zezula (IFD UW)Report from the NEUTRINO24: XXXI International Conference on Neutrino Physics and Astrophysics
An overview of the most interesting results presented at the NEUTRINO24 conference will be presented.
2024-10-04 (Friday)
room B2.38, Pasteura 5 at 10:15
dr hab. Grzegorz Grzelak (IFD UW)Report from the ICHEP-2024:42nd International Conference on High Energy Physics
A subjective overview of most interesting results brought to the ICHEP-2024 conference will be presented.