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2008-07-14

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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/131521

Evidence for direct CP violation from Dalitz-plot analysis of B±→K±π∓π±

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https://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 ± π ∓ π ± . Using a sample of ( 383.2 ± 4.2 ) × 10 6 B ¯¯¯ B pairs collected by the BABAR detector, we measure C P -averaged branching fractions and direct C P asymmetries for intermediate resonant and nonresonant contributions. We find evidence for direct C P violation in the decay B ± → ρ 0 ( 770 ) K ± , with a C P -violation parameter A C P = ( + 44 ± 10 ± 4 + 5 − 13 ) % .

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Física de partícules, Experiments

Subject (English)

Particle physics, Experiments

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Articles publicats en revistes (Física Quàntica i Astrofísica)

Citation

GARRA TICÓ, Jordi, GRAUGÉS POUS, Eugeni and BABAR Collaboration. Evidence for direct CP violation from Dalitz-plot analysis of B±→K±π∓π±. Physical Review D. 2008. Vol. 78, num. 1, pags. 012004. ISSN 1550-7998. [consulted: 17 of August of 2026]. Available at: https://hdl.handle.net/2445/131521

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