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Evidence for large direct CP violation in B-+/- -> p(770)K-0(+/-) from analysis of three-body charmless B-+/- -> K-+/-pi(+/-)pi(+/-) decays

Garmash, A; Abe, K; Abe, K; Adachi, I; Aihara, H; Asano, Y; Aushev, T; ... Belle Collaboration; + view all (2006) Evidence for large direct CP violation in B-+/- -> p(770)K-0(+/-) from analysis of three-body charmless B-+/- -> K-+/-pi(+/-)pi(+/-) decays. PHYS REV LETT , 96 (25) , Article 251803. 10.1103/PhysRevLett.96.251803. Green open access

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Abstract

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.

Type: Article
Title: Evidence for large direct CP violation in B-+/- -> p(770)K-0(+/-) from analysis of three-body charmless B-+/- -> K-+/-pi(+/-)pi(+/-) decays
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.96.251803
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.96.251803
Language: English
Additional information: © 2006 The American Physical Society
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
URI: https://discovery.ucl.ac.uk/id/eprint/1308511
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