Direct CP violation in B decays

TL;DR

This paper reviews recent experimental findings on direct CP violation in B meson decays, highlighting new measurements in various decay channels and addressing discrepancies between major experiments.

Contribution

It provides a comprehensive overview of the latest experimental results on direct CP violation, including new measurements in B, Bs, and Lambda_b decays and analysis of CP violation in B+ decays.

Findings

First measurements of CP violation in Bs0 and Lambda_b0 decays.

Evidence for direct CP violation in B+ decays from Dalitz plot analysis.

Discussion of discrepancies in CP violation measurements between Belle and BABAR.

Abstract

We review recent experimental results on direct CP violation. The hot topic is a measurement in charmless two-body decays of B0, B+. In connection to this the first analogous measurements in Bs0 and Lambda_b0 decays are now available. Furthermore first evidence for direct CP violation in B+ decays is obtained from Dalitz plot analyzes of the K+pi-pi+ final state at B-factories. The last group of discussed results probes the b -> c\bar{c}d transition in attempt to resolve the discrepancy between Belle and BABAR experiments in CP violation in the B0 -> D+D- decays.