Bs0 Decays at Belle

TL;DR

This paper reports the first observations of several exclusive Bs0 meson decay modes and CP-eigenstate decay, using data from the Belle detector at the Y(5S) energy, enhancing understanding of Bs0 properties.

Contribution

It presents the first observations of three dominant exclusive Bs0 decays and a CP-eigenstate decay, expanding knowledge of Bs0 decay channels.

Findings

First observation of Bs0 -> Ds*- pi+

First observation of Bs0 -> Ds- rho+

Observation of Bs0 -> J/psi eta

Abstract

The large data sample being recorded with the Belle detector at the Y(5S) energy provides a unique opportunity to study the poorly-known Bs0 meson. Three analyses, using a sample of 23.6 /fb, are presented. We report the first observation of the three dominant exclusive Bs0 decays, Bs0 -> Ds*- pi+, Bs0 -> Ds- rho+ and Bs0 -> Ds*- rho+, the first observation of the CP-eigenstate decay Bs0 -> J/psi eta, and the results from a study of the charmless Bs0 -> K+K-, Bs0 -> K+pi-, Bs0 -> pi+pi- and Bs0 -> K0 K0bar decays.