Study of two-photon decays of pseudoscalar mesons via J /ψ radiative decays

(BESIII Collaboration)

doi:10.1103/PhysRevD.97.072014

Study of two-photon decays of pseudoscalar mesons via J /ψ radiative decays

(BESIII Collaboration)

Physics and Astronomy (Twin Cities)

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

6 Scopus citations

Abstract

Using a sample of 4.48×108 ψ(3686) events collected with the BESIII detector at the BEPCII collider, we study the two-photon decays of the pseudoscalar mesons π0, η, η′, η(1405), η(1475), η(1760), and X(1835) in J/ψ radiative decays using ψ(3686)→π+π-J/ψ events. The π0, η, and η′ mesons are clearly observed in the two-photon mass spectra, and the branching fractions are determined to be B(J/ψ→γπ0→3γ)=(3.57±0.12±0.16)×10-5, B(J/ψ→γη→3γ)=(4.42±0.04±0.18)×10-4, and B(J/ψ→γη′→3γ)=(1.26±0.02±0.05)×10-4, where the first error is statistical and the second is systematic. No clear signal for η(1405), η(1475), η(1760) or X(1835) is observed in the two-photon mass spectra, and upper limits at the 90% confidence level on the product branching fractions are obtained.

Original language	English (US)
Article number	074013
Journal	Physical Review D
Volume	97
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevD.97.072014
State	Published - Apr 1 2018

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© 2018 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the »https://creativecommons.org/licenses/by/4.0/» Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP.

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10.1103/PhysRevD.97.072014

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@article{30409d97a9d64980bd640d97af7d02ac,

title = "Study of two-photon decays of pseudoscalar mesons via J /ψ radiative decays",

abstract = "Using a sample of 4.48×108 ψ(3686) events collected with the BESIII detector at the BEPCII collider, we study the two-photon decays of the pseudoscalar mesons π0, η, η′, η(1405), η(1475), η(1760), and X(1835) in J/ψ radiative decays using ψ(3686)→π+π-J/ψ events. The π0, η, and η′ mesons are clearly observed in the two-photon mass spectra, and the branching fractions are determined to be B(J/ψ→γπ0→3γ)=(3.57±0.12±0.16)×10-5, B(J/ψ→γη→3γ)=(4.42±0.04±0.18)×10-4, and B(J/ψ→γη′→3γ)=(1.26±0.02±0.05)×10-4, where the first error is statistical and the second is systematic. No clear signal for η(1405), η(1475), η(1760) or X(1835) is observed in the two-photon mass spectra, and upper limits at the 90\% confidence level on the product branching fractions are obtained.",

author = "\{(BESIII Collaboration)\} and M. Ablikim and Achasov, \{M. N.\} and S. Ahmed and M. Albrecht and A. Amoroso and An, \{F. F.\} and Q. An and Bai, \{J. Z.\} and Y. Bai 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 J. Chai and Chang, \{J. F.\} and G. Chelkov and G. Chen and Chen, \{H. S.\} and Chen, \{J. C.\} and Chen, \{M. L.\} and Chen, \{P. L.\} and Chen, \{S. J.\} 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 A. Denig and I. Denysenko and M. Destefanis and \{De Mori\}, F.",

note = "Publisher Copyright: {\textcopyright} 2018 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the »https://creativecommons.org/licenses/by/4.0/» Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP.",

year = "2018",

month = apr,

day = "1",

doi = "10.1103/PhysRevD.97.072014",

language = "English (US)",

volume = "97",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "American Physical Society",

number = "7",

}

TY - JOUR

T1 - Study of two-photon decays of pseudoscalar mesons via J /ψ radiative decays

AU - (BESIII Collaboration)

AU - Ablikim, M.

AU - Achasov, M. N.

AU - Ahmed, S.

AU - Albrecht, M.

AU - Amoroso, A.

AU - An, F. F.

AU - An, Q.

AU - Bai, J. Z.

AU - Bai, Y.

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 - Chai, J.

AU - Chang, J. F.

AU - Chelkov, G.

AU - Chen, G.

AU - Chen, H. S.

AU - Chen, J. C.

AU - Chen, M. L.

AU - Chen, P. L.

AU - Chen, S. J.

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 - Denig, A.

AU - Denysenko, I.

AU - Destefanis, M.

AU - De Mori, F.

N1 - Publisher Copyright: © 2018 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the »https://creativecommons.org/licenses/by/4.0/» Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP.

PY - 2018/4/1

Y1 - 2018/4/1

N2 - Using a sample of 4.48×108 ψ(3686) events collected with the BESIII detector at the BEPCII collider, we study the two-photon decays of the pseudoscalar mesons π0, η, η′, η(1405), η(1475), η(1760), and X(1835) in J/ψ radiative decays using ψ(3686)→π+π-J/ψ events. The π0, η, and η′ mesons are clearly observed in the two-photon mass spectra, and the branching fractions are determined to be B(J/ψ→γπ0→3γ)=(3.57±0.12±0.16)×10-5, B(J/ψ→γη→3γ)=(4.42±0.04±0.18)×10-4, and B(J/ψ→γη′→3γ)=(1.26±0.02±0.05)×10-4, where the first error is statistical and the second is systematic. No clear signal for η(1405), η(1475), η(1760) or X(1835) is observed in the two-photon mass spectra, and upper limits at the 90% confidence level on the product branching fractions are obtained.

AB - Using a sample of 4.48×108 ψ(3686) events collected with the BESIII detector at the BEPCII collider, we study the two-photon decays of the pseudoscalar mesons π0, η, η′, η(1405), η(1475), η(1760), and X(1835) in J/ψ radiative decays using ψ(3686)→π+π-J/ψ events. The π0, η, and η′ mesons are clearly observed in the two-photon mass spectra, and the branching fractions are determined to be B(J/ψ→γπ0→3γ)=(3.57±0.12±0.16)×10-5, B(J/ψ→γη→3γ)=(4.42±0.04±0.18)×10-4, and B(J/ψ→γη′→3γ)=(1.26±0.02±0.05)×10-4, where the first error is statistical and the second is systematic. No clear signal for η(1405), η(1475), η(1760) or X(1835) is observed in the two-photon mass spectra, and upper limits at the 90% confidence level on the product branching fractions are obtained.

UR - https://www.scopus.com/pages/publications/85046830096

UR - https://www.scopus.com/pages/publications/85046830096#tab=citedBy

U2 - 10.1103/PhysRevD.97.072014

DO - 10.1103/PhysRevD.97.072014

M3 - Article

AN - SCOPUS:85046830096

SN - 2470-0010

VL - 97

JO - Physical Review D

JF - Physical Review D

IS - 7

M1 - 074013

ER -

Study of two-photon decays of pseudoscalar mesons via J /ψ radiative decays

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