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Evidence for direct CP violation from Dalitz-plot analysis of B-+/--> K-+/-pi(-/+)pi(+/-)
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BABAR Collaboration (Including:
). (2008) Evidence for direct CP violation from Dalitz-plot analysis of B-+/--> K-+/-pi(-/+)pi(+/-). Physical Review D (Particles, Fields, Gravitation and Cosmology), Vol.78 (No.1). Article no. 012004. doi:10.1103/PhysRevD.78.012004 ISSN 1550-7998.Research output not available from this repository.
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Official URL: http://dx.doi.org/10.1103/PhysRevD.78.012004
Abstract
We report a Dalitz-plot analysis of the charmless hadronic decays of charged B mesons to the final state K-+/-pi(-/+)pi(+/-). Using a sample of (383.2 +/- 4.2) x 10(6) B (B) over bar pairs collected by the BABAR detector, we measure CP-averaged branching fractions and direct CP asymmetries for intermediate resonant and nonresonant contributions. We find evidence for direct CP violation in the decay B-+/- -> rho(0)(770)K-+/-, with a CP-violation parameter A(CP) = (+44 +/- 10 +/- 4(-13)(+5))%.
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