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Observation of the doubly radiative decay η′ →γγπ0. / The BELLE collaboration.

In: Physical Review D, Vol. 96, No. 1, 012005, 26.07.2017.

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

Harvard

The BELLE collaboration 2017, 'Observation of the doubly radiative decay η′ →γγπ0', Physical Review D, vol. 96, no. 1, 012005. https://doi.org/10.1103/PhysRevD.96.012005

APA

The BELLE collaboration (2017). Observation of the doubly radiative decay η′ →γγπ0. Physical Review D, 96(1), [012005]. https://doi.org/10.1103/PhysRevD.96.012005

Vancouver

The BELLE collaboration. Observation of the doubly radiative decay η′ →γγπ0. Physical Review D. 2017 Jul 26;96(1):012005. doi: 10.1103/PhysRevD.96.012005

Author

The BELLE collaboration. / Observation of the doubly radiative decay η′ →γγπ0. In: Physical Review D. 2017 ; Vol. 96, No. 1.

BibTeX

@article{cfec8f281b704addb038d5f95aec5341,
title = "Observation of the doubly radiative decay η′ →γγπ0",
abstract = "Based on a sample of 1.31 billion J/ψ events collected with the BESIII detector, we report the study of the doubly radiative decay η′→γγπ0 for the first time, where the η′ meson is produced via the J/ψ→γη′ decay. The branching fraction of η′→γγπ0 inclusive decay is measured to be B(η′→γγπ0)Incl=(3.20±0.07(stat)±0.23(sys))×10-3, while the branching fractions of the dominant process η′→γω and the nonresonant component are determined to be B(η′→γω)×B(ω→γπ0)=(23.7±1.4(stat)±1.8(sys))×10-4 and B(η′→γγπ0)NR=(6.16±0.64(stat)±0.67(sys))×10-4, respectively. In addition, the Mγγ2-dependent partial widths of the inclusive decay are also presented.",
keywords = "CHIRAL PERTURBATION-THEORY, ANOMALOUS WARD IDENTITIES, AMPLITUDES",
author = "{The BELLE collaboration} and M. Ablikim and Achasov, {M. N.} and S. Ahmed and Ai, {X. C.} and O. Albayrak and M. Albrecht and Ambrose, {D. J.} and A. Amoroso and An, {F. F.} and Q. An and Bai, {J. Z.} and O. Bakina and {Baldini Ferroli}, R. and Y. Ban and Bennett, {D. W.} and Bennett, {J. V.} and N. Berger and M. Bertani and D. Bettoni and Bian, {J. M.} and F. Bianchi and E. Boger and I. Boyko and Briere, {R. A.} and H. Cai and X. Cai and O. Cakir and A. Calcaterra and Cao, {G. F.} and Cetin, {S. A.} and Chang, {J. F.} and G. Chelkov and G. Chen and Chen, {H. S.} and Chen, {J. C.} and Chen, {M. L.} and S. Chen and Chen, {S. J.} and X. Chen and Chen, {X. R.} and Chen, {Y. B.} and Chu, {X. K.} and G. Cibinetto and Dai, {H. L.} and Dai, {J. P.} and A. Dbeyssi and D. Dedovich and Deng, {Z. Y.} and Muchnoi, {N. Yu} and Nikolaev, {I. B.}",
year = "2017",
month = jul,
day = "26",
doi = "10.1103/PhysRevD.96.012005",
language = "English",
volume = "96",
journal = "Physical Review D",
issn = "2470-0010",
publisher = "AMER PHYSICAL SOC",
number = "1",

}

RIS

TY - JOUR

T1 - Observation of the doubly radiative decay η′ →γγπ0

AU - The BELLE collaboration

AU - Ablikim, M.

AU - Achasov, M. N.

AU - Ahmed, S.

AU - Ai, X. C.

AU - Albayrak, O.

AU - Albrecht, M.

AU - Ambrose, D. J.

AU - Amoroso, A.

AU - An, F. F.

AU - An, Q.

AU - Bai, J. Z.

AU - Bakina, O.

AU - Baldini Ferroli, R.

AU - Ban, Y.

AU - Bennett, D. W.

AU - Bennett, J. V.

AU - Berger, N.

AU - Bertani, M.

AU - Bettoni, D.

AU - Bian, J. M.

AU - Bianchi, F.

AU - Boger, E.

AU - Boyko, I.

AU - Briere, R. A.

AU - Cai, H.

AU - Cai, X.

AU - Cakir, O.

AU - Calcaterra, A.

AU - Cao, G. F.

AU - Cetin, S. A.

AU - Chang, J. F.

AU - Chelkov, G.

AU - Chen, G.

AU - Chen, H. S.

AU - Chen, J. C.

AU - Chen, M. L.

AU - Chen, S.

AU - Chen, S. J.

AU - Chen, X.

AU - Chen, X. R.

AU - Chen, Y. B.

AU - Chu, X. K.

AU - Cibinetto, G.

AU - Dai, H. L.

AU - Dai, J. P.

AU - Dbeyssi, A.

AU - Dedovich, D.

AU - Deng, Z. Y.

AU - Muchnoi, N. Yu

AU - Nikolaev, I. B.

PY - 2017/7/26

Y1 - 2017/7/26

N2 - Based on a sample of 1.31 billion J/ψ events collected with the BESIII detector, we report the study of the doubly radiative decay η′→γγπ0 for the first time, where the η′ meson is produced via the J/ψ→γη′ decay. The branching fraction of η′→γγπ0 inclusive decay is measured to be B(η′→γγπ0)Incl=(3.20±0.07(stat)±0.23(sys))×10-3, while the branching fractions of the dominant process η′→γω and the nonresonant component are determined to be B(η′→γω)×B(ω→γπ0)=(23.7±1.4(stat)±1.8(sys))×10-4 and B(η′→γγπ0)NR=(6.16±0.64(stat)±0.67(sys))×10-4, respectively. In addition, the Mγγ2-dependent partial widths of the inclusive decay are also presented.

AB - Based on a sample of 1.31 billion J/ψ events collected with the BESIII detector, we report the study of the doubly radiative decay η′→γγπ0 for the first time, where the η′ meson is produced via the J/ψ→γη′ decay. The branching fraction of η′→γγπ0 inclusive decay is measured to be B(η′→γγπ0)Incl=(3.20±0.07(stat)±0.23(sys))×10-3, while the branching fractions of the dominant process η′→γω and the nonresonant component are determined to be B(η′→γω)×B(ω→γπ0)=(23.7±1.4(stat)±1.8(sys))×10-4 and B(η′→γγπ0)NR=(6.16±0.64(stat)±0.67(sys))×10-4, respectively. In addition, the Mγγ2-dependent partial widths of the inclusive decay are also presented.

KW - CHIRAL PERTURBATION-THEORY

KW - ANOMALOUS WARD IDENTITIES

KW - AMPLITUDES

UR - http://www.scopus.com/inward/record.url?scp=85027237359&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.96.012005

DO - 10.1103/PhysRevD.96.012005

M3 - Article

AN - SCOPUS:85027237359

VL - 96

JO - Physical Review D

JF - Physical Review D

SN - 2470-0010

IS - 1

M1 - 012005

ER -

ID: 9964874