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High precision tests of Standard Model in B-physics measurements in p-p collisions of LHC and HL-LHC in ATLAS.

Tuesday November 2, 2021
2:00 pm


 Presenter:  Maria Smizanska, CERN
 Series:  Nuclear, Particle, Astroparticle and Cosmology (NUPAC) Seminars
 Abstract:  Proton-proton collision data at the Large Hadron Collider collected by ATLAS collaboration in years 2012-2018, are used to search for possible tensions with Standard Model (SM) in decays of Beauty Hadrons. Details will be given for two “golden” channels of Bs meson. Firstly, a high-precision search for inconsistencies with SM in decay parameters of Bs → J/𝜓𝜑 and secondly, a test of SM by measuring decay probabilities of two very rare Bs → μ+μ− and Bd → μ+μ− decays. The world -combined results are compared to SM calculations. All LHC experiments are preparing to follow this research at new High-Luminosity LHC, that will start operating in 2027. ATLAS prospects based on full simulations of the two channels will be presented.
 Host:  Sally Seidel
 Location:  Zoom

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