Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Observation of ψ (3686) →p p ̄ η′ and improved measurement of J /ψ →p p ̄ η′. / Belle Collaboration.
в: Physical Review D, Том 99, № 3, 032006, 15.02.2019.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Observation of ψ (3686) →p p ̄ η′ and improved measurement of J /ψ →p p ̄ η′
AU - The BELLE 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 - Begzsuren, K.
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, P. L.
AU - Chen, S. J.
AU - Chen, X. R.
AU - Chen, Y. B.
AU - Cheng, W.
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 - Muchnoi, N. Yu
AU - Nikolaev, I. B.
N1 - Publisher Copyright: © 2019 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 - 2019/2/15
Y1 - 2019/2/15
N2 - We observe the process ψ(3686)→pp̄η′ for the first time, with a statistical significance higher than 10σ, and measure the branching fraction of J/ψ→pp̄η′ with an improved accuracy compared to earlier studies. The measurements are based on 4.48×108 ψ(3686) and 1.31×109 J/ψ events collected by the BESIII detector operating at the BEPCII. The branching fractions are determined to be B(ψ(3686)→pp̄η′)=(1.10±0.10±0.08)×10-5 and B(J/ψ→pp̄η′)=(1.26±0.02±0.07)×10-4, where the first uncertainties are statistical and the second ones systematic. Additionally, the η-η′ mixing angle is determined to be -24°±11° based on ψ(3686)→pp̄η′, and -24°±9° based on J/ψ→pp̄η′, respectively.
AB - We observe the process ψ(3686)→pp̄η′ for the first time, with a statistical significance higher than 10σ, and measure the branching fraction of J/ψ→pp̄η′ with an improved accuracy compared to earlier studies. The measurements are based on 4.48×108 ψ(3686) and 1.31×109 J/ψ events collected by the BESIII detector operating at the BEPCII. The branching fractions are determined to be B(ψ(3686)→pp̄η′)=(1.10±0.10±0.08)×10-5 and B(J/ψ→pp̄η′)=(1.26±0.02±0.07)×10-4, where the first uncertainties are statistical and the second ones systematic. Additionally, the η-η′ mixing angle is determined to be -24°±11° based on ψ(3686)→pp̄η′, and -24°±9° based on J/ψ→pp̄η′, respectively.
KW - DECAYS
UR - http://www.scopus.com/inward/record.url?scp=85062596011&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.99.032006
DO - 10.1103/PhysRevD.99.032006
M3 - Article
AN - SCOPUS:85062596011
VL - 99
JO - Physical Review D
JF - Physical Review D
SN - 2470-0010
IS - 3
M1 - 032006
ER -
ID: 18778441