Research output: Contribution to journal › Article › peer-review
Search for the decay η′ →γγη. / BESIII Collaboration.
In: Physical Review D, Vol. 100, No. 5, 052015, 30.09.2019.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Search for the decay η′ →γγη
AU - BESIII Collaboration
AU - Ablikim, M.
AU - Achasov, M. N.
AU - Adlarson, P.
AU - Ahmed, S.
AU - Albrecht, M.
AU - Alekseev, M.
AU - Amoroso, A.
AU - An, F. F.
AU - An, Q.
AU - Bai, Y.
AU - Bakina, O.
AU - Ferroli, R. Baldini
AU - Balossino, I.
AU - Ban, Y.
AU - Begzsuren, K.
AU - Bennett, J. V.
AU - Berger, N.
AU - Bertani, M.
AU - Bettoni, D.
AU - Bianchi, F.
AU - Biernat, J.
AU - Bloms, J.
AU - Boyko, I.
AU - Briere, R. A.
AU - Cai, H.
AU - Cai, X.
AU - Calcaterra, A.
AU - Cao, G. F.
AU - Cao, N.
AU - Cetin, S. A.
AU - Chai, J.
AU - Chang, J. F.
AU - Chang, W. L.
AU - Chelkov, G.
AU - Chen, D. Y.
AU - Chen, G.
AU - Chen, H. S.
AU - Chen, J. C.
AU - Chen, M. L.
AU - Chen, S. J.
AU - Chen, Y. B.
AU - Cheng, W.
AU - Cibinetto, G.
AU - Cossio, F.
AU - Cui, X. F.
AU - Dai, H. L.
AU - Dai, J. P.
AU - Dai, X. C.
AU - Muchnoi, N. Yu
AU - Nikolaev, I. B.
N1 - Publisher Copyright: © 2019 authors. Published by the American Physical Society. Copyright: Copyright 2019 Elsevier B.V., All rights reserved.
PY - 2019/9/30
Y1 - 2019/9/30
N2 - Using a data sample of 1.31×109 J/ψ events collected with the BESIII detector, a search for η′→γγη via J/ψ→γη′ is performed for the first time. No significant η′ signal is observed in the γγη invariant mass spectrum, and the branching fraction of η′→γγη is determined to be less than 1.33×10-4 at the 90% confidence level.
AB - Using a data sample of 1.31×109 J/ψ events collected with the BESIII detector, a search for η′→γγη via J/ψ→γη′ is performed for the first time. No significant η′ signal is observed in the γγη invariant mass spectrum, and the branching fraction of η′→γγη is determined to be less than 1.33×10-4 at the 90% confidence level.
KW - CHIRAL PERTURBATION-THEORY
UR - http://www.scopus.com/inward/record.url?scp=85072976270&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.100.052015
DO - 10.1103/PhysRevD.100.052015
M3 - Article
AN - SCOPUS:85072976270
VL - 100
JO - Physical Review D
JF - Physical Review D
SN - 2470-0010
IS - 5
M1 - 052015
ER -
ID: 23379038