Measurement of rare $B \to \mu^+\mu^-$ decays with the Phase-2 upgraded CMS detector at the HL-LHC

CMS Physics Analysis Summaries
Report number	CMS-PAS-FTR-18-013
Title	Measurement of rare $B \to \mu^+\mu^-$ decays with the Phase-2 upgraded CMS detector at the HL-LHC
Corporate author(s)	CMS Collaboration
Collaboration	CMS Collaboration
Subject category	Particle Physics - Experiment
Accelerator/Facility, Experiment	CERN LHC ; CMS
Abstract	The sensitivity of the upgraded CMS detector for measuring the rare decays $B_{s}^0\to \mu^+ \mu^-$ and $B^0\to \mu^+ \mu^-$ in the HL-LHC scenario is studied. The upgraded detector, especially with its improved momentum resolution, and the foreseen total integrated luminosity of $3000~\mathrm{fb}^{-1}$ are expected to enable high precision measurements of the branching fractions of $B_{s}^0\to \mu^+ \mu^-$ and the effective lifetime of the $B_{s}^0\to \mu^+ \mu^-$ decay with reduced systematic and statistical uncertainties. At $3000~\mathrm{fb}^{-1}$, it will also be possible to observe the $B^0\to \mu^+ \mu^-$ decay with more than 5$\sigma$ significance.
Other source	Inspire
Email contact: cms-phys-conveners-ftr@cern.ch Fulltext in PDF Figure_002-a Figure_002-b Figure_006 Figure_005-b Figure_005-a Figure_004 Figure_003 Figure_001-b Figure_001-a Additional information for the analysis (restricted access)