Measurement of the B s 0→μ +μ decay properties and search for the B 0 → μ +μ decay in proton-proton collisions at s=13TeV

CMS Collaboration

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Abstract

Measurements are presented of the B s 0→μ +μ branching fraction and effective lifetime, as well as results of a search for the B 0→μ +μ decay in proton-proton collisions at s=13TeV at the LHC. The analysis is based on data collected with the CMS detector in 2016–2018 corresponding to an integrated luminosity of 140fb −1. The branching fraction of the B s 0→μ +μ decay and the effective B s 0 meson lifetime are the most precise single measurements to date. No evidence for the B 0→μ +μ decay has been found. All results are found to be consistent with the standard model predictions and previous measurements.

Original languageEnglish
Article number137955
Number of pages27
JournalPhys. Lett. B
Volume842
Issue number2023
DOIs
Publication statusPublished - 10 Jul 2023

Bibliographical note

Replaced with the published version. Added the journal reference and the DOI. All the figures and tables, including additional supplemental figures, can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/BPH-21-006 (CMS Public Pages)

Keywords

  • hep-ex

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