Measurement of branching fraction and direct CP asymmetry in charmless B+ →K+K-π+ decays at Belle

(Belle Collaboration)

doi:10.1103/PhysRevD.96.031101

Measurement of branching fraction and direct CP asymmetry in charmless B+ →K+K-π+ decays at Belle

(Belle Collaboration)

Chair of Physics I

Research output: Contribution to journal › Article › peer-review

28 Scopus citations

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 BB; pairs collected at the ?(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.

Original language	English
Article number	031101
Journal	Physical Review D
Volume	96
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevD.96.031101
State	Published - 31 Aug 2017

Access to Document

10.1103/PhysRevD.96.031101

Cite this

@article{22f84455e68c4f7e9dc0fce41f7d659d,

title = "Measurement of branching fraction and direct CP asymmetry in charmless B+ →K+K-π+ decays at Belle",

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 BB; pairs collected at the ?(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.",

author = "\{(Belle Collaboration)\} and Hsu, \{C. L.\} and D. Dossett and Sevior, \{M. E.\} and I. Adachi and H. Aihara and \{Al Said\}, S. and Asner, \{D. M.\} and H. Atmacan and V. Aulchenko and T. Aushev and R. Ayad and I. Badhrees and Bakich, \{A. M.\} and E. Barberio and P. Behera and M. Berger and V. Bhardwaj and B. Bhuyan and J. Biswal and T. Bloomfield and A. Bondar and G. Bonvicini and A. Bozek and M. Bra{\v c}ko and Browder, \{T. E.\} and P. Chang and V. Chekelian and A. Chen and Cheon, \{B. G.\} and K. Chilikin and R. Chistov and K. Cho and Y. Choi and D. Cinabro and N. Dash and \{Di Carlo\}, S. and Z. Dole{\v Z}al and Z. Dr{\'a}sal and S. Eidelman and H. Farhat and Fast, \{J. E.\} and Fulsom, \{B. G.\} and V. Gaur and N. Gabyshev and A. Garmash and P. Goldenzweig and B. Golob and O. Grzymkowska and E. Guido and S. Paul",

note = "Publisher Copyright: {\textcopyright} 2017 American Physical Society.",

year = "2017",

month = aug,

day = "31",

doi = "10.1103/PhysRevD.96.031101",

language = "English",

volume = "96",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "American Physical Society",

number = "3",

}

TY - JOUR

T1 - Measurement of branching fraction and direct CP asymmetry in charmless B+ →K+K-π+ decays at Belle

AU - (Belle Collaboration)

AU - Hsu, C. L.

AU - Dossett, D.

AU - Sevior, M. E.

AU - Adachi, I.

AU - Aihara, H.

AU - Al Said, S.

AU - Asner, D. M.

AU - Atmacan, H.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Ayad, R.

AU - Badhrees, I.

AU - Bakich, A. M.

AU - Barberio, E.

AU - Behera, P.

AU - Berger, M.

AU - Bhardwaj, V.

AU - Bhuyan, B.

AU - Biswal, J.

AU - Bloomfield, T.

AU - Bondar, A.

AU - Bonvicini, G.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Chang, P.

AU - Chekelian, V.

AU - Chen, A.

AU - Cheon, B. G.

AU - Chilikin, K.

AU - Chistov, R.

AU - Cho, K.

AU - Choi, Y.

AU - Cinabro, D.

AU - Dash, N.

AU - Di Carlo, S.

AU - DoleŽal, Z.

AU - Drásal, Z.

AU - Eidelman, S.

AU - Farhat, H.

AU - Fast, J. E.

AU - Fulsom, B. G.

AU - Gaur, V.

AU - Gabyshev, N.

AU - Garmash, A.

AU - Goldenzweig, P.

AU - Golob, B.

AU - Grzymkowska, O.

AU - Guido, E.

AU - Paul, S.

PY - 2017/8/31

Y1 - 2017/8/31

N2 - 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 BB; pairs collected at the ?(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.

AB - 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 BB; pairs collected at the ?(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.

UR - https://www.scopus.com/pages/publications/85051568935

U2 - 10.1103/PhysRevD.96.031101

DO - 10.1103/PhysRevD.96.031101

M3 - Article

AN - SCOPUS:85051568935

SN - 2470-0010

VL - 96

JO - Physical Review D

JF - Physical Review D

IS - 3

M1 - 031101

ER -

Measurement of branching fraction and direct CP asymmetry in charmless B+ →K+K-π+ decays at Belle

Abstract

Access to Document

Other files and links

Fingerprint

Cite this