Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Observation of the Radiative Decays of ψ (1S) to χc1. / Belle Collaboration ; Жилич, Виктор Николаевич.
в: Physical Review Letters, Том 124, № 12, 122001, 27.03.2020.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Observation of the Radiative Decays of ψ (1S) to χc1
AU - The BELLE collaboration
AU - Katrenko, P.
AU - Adachi, I.
AU - Aihara, H.
AU - Al Said, S.
AU - Asner, D. M.
AU - Aushev, T.
AU - Badhrees, I.
AU - Bahinipati, S.
AU - Behera, P.
AU - Beleño, C.
AU - Bennett, J.
AU - Bhardwaj, V.
AU - Bhuyan, B.
AU - Biswal, J.
AU - Bobrov, A.
AU - Bonvicini, G.
AU - Bračko, M.
AU - Campajola, M.
AU - Cao, L.
AU - Červenkov, D.
AU - Chekelian, V.
AU - Chen, A.
AU - Cheon, B. G.
AU - Chilikin, K.
AU - Cho, H. E.
AU - Cho, K.
AU - Choi, S. K.
AU - Choi, Y.
AU - Choudhury, S.
AU - Cinabro, D.
AU - Cunliffe, S.
AU - Di Capua, F.
AU - Di Carlo, S.
AU - Doležal, Z.
AU - Dong, T. V.
AU - Eidelman, S.
AU - Epifanov, D.
AU - Fast, J. E.
AU - Fulsom, B. G.
AU - Garg, R.
AU - Gaur, V.
AU - Gabyshev, N.
AU - Garmash, A.
AU - Giri, A.
AU - Goldenzweig, P.
AU - Golob, B.
AU - Grzymkowska, O.
AU - Hartbrich, O.
AU - Matvienko, D.
AU - Usov, Y.
AU - Жилич, Виктор Николаевич
N1 - Publisher Copyright: © 2020 authors. Published by the American Physical Society. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/3/27
Y1 - 2020/3/27
N2 - We report the first observation of the radiative decay of the ψ(1S) into a charmonium state. The significance of the observed signal of ψ(1S)→γχc1 is 6.3 standard deviations including systematics. The branching fraction is calculated to be B[ψ(1S)→γχc1]=[4.7-1.8+2.4(stat)-0.5+0.4(sys)×10-5]. We also searched for ψ(1S) radiative decays into χc0,2 and ηc(1S,2S), and set upper limits on their branching fractions. These results are obtained from a 24.9 fb-1 data sample collected with the Belle detector at the KEKB asymmetric-energy e+e- collider at a center-of-mass energy equal to the ψ(2S) mass using ψ(1S) tagging by the ψ(2S)→ψ(1S)π+π- transitions.
AB - We report the first observation of the radiative decay of the ψ(1S) into a charmonium state. The significance of the observed signal of ψ(1S)→γχc1 is 6.3 standard deviations including systematics. The branching fraction is calculated to be B[ψ(1S)→γχc1]=[4.7-1.8+2.4(stat)-0.5+0.4(sys)×10-5]. We also searched for ψ(1S) radiative decays into χc0,2 and ηc(1S,2S), and set upper limits on their branching fractions. These results are obtained from a 24.9 fb-1 data sample collected with the Belle detector at the KEKB asymmetric-energy e+e- collider at a center-of-mass energy equal to the ψ(2S) mass using ψ(1S) tagging by the ψ(2S)→ψ(1S)π+π- transitions.
UR - http://www.scopus.com/inward/record.url?scp=85083545972&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.124.122001
DO - 10.1103/PhysRevLett.124.122001
M3 - Article
C2 - 32281835
AN - SCOPUS:85083545972
VL - 124
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 12
M1 - 122001
ER -
ID: 24227538