ATLAS results with beauty mesons

14 Apr 2021, 13:34
25m
Virtual (Stony Brook, NY)

Virtual

Stony Brook, NY

Online
Contributed Talk QCD with Heavy Flavors and Hadronic Final States QCD with Heavy Flavors and Hadronic Final States

Speaker

Ann-Kathrin Perrevoort (Nikhef National institute for subatomic physics (NL))

Description

Recent results from the ATLAS experiment on the B_c production and decays will be presented. The measurement of the ratios of the B_c+ and B+ production cross sections in proton-proton collisions at 8 TeV will be discussed.

The ATLAS experiment has performed accurate measurements of mixing and CP violation in the neutral B mesons, and also of rare processes happening in electroweak FCNC-suppressed neutral B-mesons decays. This talk will also focus on the latest results from ATLAS, such as rare processes: B^0_s → mu mu and B^0 → mu mu; and CPV in the B_s^0 —> J/psi phi decays. In the latter, the Standard Model predicts the CP violating mixing phase, phi_s, to be very small and its SM value is very well constrained, while in many new physics models large phi_s values are expected. Latest measurements of phi_s and several other parameters describing the B_s^0 —> J/psi phi decays will be reported.

Primary authors

ATLAS Collaboration Ann-Kathrin Perrevoort (Nikhef National institute for subatomic physics (NL))

Presentation materials