Observability of B_(d)s-> mu mu decay with the CMS detector

TL;DR

This paper evaluates the potential to observe the rare B0_s -> 2mu decay using detailed CMS detector simulations, improving sensitivity estimates with advanced reconstruction algorithms.

Contribution

It provides an updated analysis of B0_s -> 2mu decay observability with enhanced simulation and reconstruction techniques for the CMS detector.

Findings

Improved sensitivity estimates for B0_s -> 2mu decay detection.

Enhanced track and vertex reconstruction algorithms.

Tighter selection criteria increase detection prospects.

Abstract

We have updated our previous study on the possibility to observe the rare B0_s -> 2mu decay with detailed simulation of the TDR version of the CMS detector. The full simulation and reconstruction procedure has been done both for the signal and background. We improved our previous results on expected sensitivity using more sophisticated algorithms for the track and vertex reconstruction and tighter selection criteria.