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Measurement of the Bs 0→μ+μ decay properties and search for the B0 → μ+μ decay in proton-proton collisions at s=13TeV

  • CMS Collaboration
  • A. Alikhanian Yerevan Institute of Physics
  • Yerevan State University
  • Austrian Academy of Sciences
  • TU Wien
  • University of Antwerp
  • Arab Academy for Science, Technology and Maritime Transport
  • Université libre de Bruxelles
  • Vrije Universiteit Brussel

Research output: Contribution to journalArticlepeer-review

90 Scopus citations

Abstract

Measurements are presented of the Bs 0→μ+μ branching fraction and effective lifetime, as well as results of a search for the B0→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 Bs 0→μ+μ decay and the effective Bs 0 meson lifetime are the most precise single measurements to date. No evidence for the B0→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
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume842
DOIs
StatePublished - 10 Jul 2023

Keywords

  • BPH
  • CMS
  • Flavor physics
  • Rare decays

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