Department

Physics

Document Type

Article

Publication Date

8-2017

Embargo Period

7-3-2018

Abstract

We report a study of the charmless hadronic decay of the charged B meson to the three-body final state K+K−π+. The results are based on a data sample that contains 772×106  B¯B pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e− collider. The measured inclusive branching fraction and direct CP asymmetry are (5.38±0.40±0.35)×10−6 and −0.170±0.073±0.017, respectively, where the first uncertainties are statistical and the second are systematic. The K+K− invariant mass distribution of the signal candidates shows an excess in the region below 1.5  GeV/c2, which is consistent with the previous studies from BABAR and LHCb. In addition, strong evidence of a large direct CP asymmetry is found in the low K+K− invariant-mass region.

Journal

Physical Review D

Journal ISSN

2470-0010

Volume

96

Issue

3

Digital Object Identifier (DOI)

10.1103/PhysRevD.96.031101

Comments

Preprint.

Included in

Physics Commons

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