Search for rare decays of the Bs Meson at the Tevatron

TL;DR

This paper reports on the search for rare flavor-changing neutral current decays of the Bs meson, specifically Bs->Mu+Mu- and Bs->phi mu+mu-, using data from the Tevatron collider to test the Standard Model and probe new physics.

Contribution

It presents the first combined search for these rare decays at the Tevatron using data from CDF and DØ detectors, setting limits on their branching ratios.

Findings

No significant excess observed over the Standard Model predictions.

Established upper limits on the branching ratios of Bs->Mu+Mu- and Bs->phi mu+mu-.

Constraints on new physics models that predict enhancements in these decay rates.

Abstract

We report on searches for Flavor-Changing Neutral Current (FCNC) decays in ppbar collisions at a center of mass energy of 1.96 TeV using up to 0.78 fb-1 of data, collected at the CDF and DO detectors respectively. The rare FCNC decays presented here are the searches for Bs-> Mu+Mu- and Bs -> phi mu+mu-.