cp violation studies in b mesons

Abstract

The four general purpose detectors on the Tevatron (CDF, D0) and LHC (Atlas, CMS) hadron colliders continue to make important measurements in the field of CP violation (CPV) in B hadron physics. The CDF collaboration presents new results in direct CPV of charmless B decays, providing world-leading measurements in b baryon decays, and finding evidence for non zero CPV in the decay Bs0 → K−π+. The D0 Collaboration presents measurements of the semileptonic mixing asymmetries in B0 and Bs0 mesons, with the former having a precision exceeding the previous world average. All four experiments perform time-dependent angular analysis of the decay Bs0 → J/ψϕ enabling the extraction of the lifetime difference ΔΓs and the CPV phase ϕsJ/ψϕ. In all cases, the results obtained are consistent with each other, and with the standard model predictions.