期刊
PHYSICAL REVIEW LETTERS
卷 96, 期 25, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.96.251803
关键词
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We report results on a Dalitz analysis of three-body charmless B-+/--> K-+/-pi(+/-)pi(-/+) decay including searches for direct CP violation. We report the first observation of the decay B-+/--> f(2)(1270)K-+/- with a statistical significance above 6 sigma. We also observe first evidence for large direct CP violation in the B-+/-->rho(770)K-0(+/-) channel. The results are obtained with a data sample that contains 386x10(6) B (B) over bar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider.
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