Research output: Contribution to journal › Article › peer-review
Measurement of branching fractions for ψ (3686) →γη′, γη, and γπ0. / BESIII Collaboration.
In: Physical Review D, Vol. 96, No. 5, 052003, 01.09.2017.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Measurement of branching fractions for ψ (3686) →γη′, γη, and γπ0
AU - BESIII Collaboration
AU - Ablikim, M.
AU - Achasov, M. N.
AU - Ahmed, S.
AU - Albrecht, M.
AU - Alekseev, 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 - 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, S. J.
AU - Chen, X. R.
AU - Chen, Y. B.
AU - Chu, X. K.
AU - Cibinetto, G.
AU - Cossio, F.
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 - Muchnoi, N. Yu
AU - Nikolaev, I. B.
N1 - Publisher Copyright: © 2017 American Physical Society.
PY - 2017/9/1
Y1 - 2017/9/1
N2 - Using a data sample of 448×106 ψ(3686) events collected with the BESIII detector operating at the BEPCII storage ring, the decays ψ(3686)→γη and ψ(3686)→γπ0 are observed with a statistical significance of 7.3σ and 6.7σ, respectively. The branching fractions are measured to be B(ψ(3686)→γη)=(0.85±0.18±0.05)×10-6 and B(ψ(3686)→γπ0)=(0.95±0.16±0.05)×10-6. In addition, we measure the branching fraction of ψ(3686)→γη′ to be B(ψ(3686)→γη′)=(125.1±2.2±6.2)×10-6, which represents an improvement of precision over previous results.
AB - Using a data sample of 448×106 ψ(3686) events collected with the BESIII detector operating at the BEPCII storage ring, the decays ψ(3686)→γη and ψ(3686)→γπ0 are observed with a statistical significance of 7.3σ and 6.7σ, respectively. The branching fractions are measured to be B(ψ(3686)→γη)=(0.85±0.18±0.05)×10-6 and B(ψ(3686)→γπ0)=(0.95±0.16±0.05)×10-6. In addition, we measure the branching fraction of ψ(3686)→γη′ to be B(ψ(3686)→γη′)=(125.1±2.2±6.2)×10-6, which represents an improvement of precision over previous results.
KW - RADIATIVE DECAYS
KW - PSEUDOSCALAR MESONS
UR - http://www.scopus.com/inward/record.url?scp=85031107879&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.96.052003
DO - 10.1103/PhysRevD.96.052003
M3 - Article
AN - SCOPUS:85031107879
VL - 96
JO - Physical Review D
JF - Physical Review D
SN - 2470-0010
IS - 5
M1 - 052003
ER -
ID: 9892306