Year: 2024
Type: conference-paper
Abstract: Recent measurements of rare decays involving the b-flavor changing neutral current at the CMS and ATLAS experiments are presented. The full set of optimized CP-averaged observables is measured in the angular analysis of the decay ${\mathrm{B}^0} \to \mathrm{K^{\ast 0}(892)} \mu^+\mu^-$ using CMS Run 2 data. The results are among the most precise experimental measurements, and clear tensions are observed between the observed values and theoretical predictions in P2 and P5' observables. The $\mathrm{B_s}^0 \to \mu^+\mu^-$ lifetime is also measured using partial ATLAS Run 2 data and is found to be consistent with the Standard Model prediction.
DOI: 10.22323/1.478.0080
Author: Zhangqier Wang
Institution: Massachusetts Institute of Technology
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W4405647127