Branching fractions and CP asymmetries in B --> h+ h'-

TL;DR

This paper reports measurements of branching fractions and CP asymmetries in B meson decays, including the first measurement of a charmless Bs decay, using data from the CDFII detector at the Tevatron.

Contribution

It provides the first branching ratio measurement of the Bs --> K+K- decay and improves understanding of B meson decay processes.

Findings

Measured relative branching fractions for Bd and Bs decays

First BR measurement of Bs --> K+K- decay

Observed direct CP asymmetry in Bd --> K+ pi-

Abstract

Relative branching fractions of Bd,Bs --> h+ h'- decays (where h,h'= K or pi) and direct CP asymmetry in Bd --> K+ pi- have been measured with 180 pb-1 of data collected by the CDFII detector at the Tevatron collider. This includes the first BR measurement of a charmless Bs-->PP decay (Bs --> K+K-).