Improved Measurements of Direct CP Violation in B --> K+pi-, K+pi0 and pi+pi0 Decays

2005/07/11 by K. Abe, Abe, K.
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #Neutrino Physics Research #Particle physics theoretical and experimental studies #Radioactive Decay and Measurement Techniques

paper · pdf · doi:10.48550/arxiv.hep-ex/0507045

openalex publication_date 2005/07/11 · openalex created_date 2019/06/27 · openalex updated_date 2026/07/28

Abstract

We report an improved measurement of direct CP violation in the decay B0 --> K+pi-, and a search for CP violation in the decays B+ --> K+pi0 and B+ --> pi+pi0. The measured CP violating asymmetries are Acp(K+pi-)=-0.113+-0.022(stat.)+-0.008(syst.), Acp(K+pi0)=0.04+-0.04(stat.)+-0.02(syst.) and Acp(pi+pi0)=0.02+-0.08(stat.)+-0.01(syst.), where the latter correspond to the intervals -0.03

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