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Evidence for direct CP violation from Dalitz-plot analysis of B-+/--> K-+/-pi(-/+)pi(+/-)

Abstract:
We report a Dalitz-plot analysis of the charmless hadronic decays of charged B mesons to the final state K±ππ±. Using a sample of (383.2±4.2)×106 BB̄ 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±→ρ0(770)K±, with a CP-violation parameter ACP=(+44±10±4-13+5)%. © 2008 The American Physical Society.
Publication status:
Published

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Publisher copy:
10.1103/PhysRevD.78.012004

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Journal:
Physical Review D More from this journal
Volume:
78
Issue:
1
Publication date:
2008-07-01
DOI:
EISSN:
1550-2368
ISSN:
1550-7998
Language:
English
Pubs id:
pubs:211281
UUID:
uuid:228845ac-01fd-42e3-9000-804c5e582c9e
Local pid:
pubs:211281
Source identifiers:
211281
Deposit date:
2012-12-19

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