$\mathrm{B^0_{(s)}}\to \mu^+\mu^-$ rare decays at LHC

TL;DR

This paper discusses the combined efforts of ATLAS, CMS, and LHCb collaborations at the LHC to measure the rare decay processes of B mesons into muon pairs, enhancing understanding of particle interactions.

Contribution

It presents integrated datasets from multiple experiments to improve measurements of B meson decay branching fractions and lifetimes.

Findings

Refined measurements of $ ext{B}^0_{(s)} o ext{mu}^+ ext{mu}^-$ decay rates.

Improved estimates of $ ext{B}^0_{s}$ decay lifetime.

Demonstrated the importance of collaborative data analysis across experiments.

Abstract

The ATLAS, CMS, and LHCb collaborations have leveraged data from proton-proton collisions at the Large Hadron Collider (LHC) to advance our understanding of fundamental particles and their interactions. These collaborative efforts underscore the significance of integrating datasets across different runs and energy levels, yielding insights that contribute to the ongoing measurements of the $\mathrm{B^0_{(s)}}\to \mu^+\mu^-$ decay branching fractions and $\mathrm{B^0_{s}}\to \mu^+\mu^-$ effective lifetime.