Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Observation of ψ (3686)→ Ξ (1530)- Ξ ̄ (1530)+ and Ξ (1530)- Ξ ̄ +. / The BESIII Collaboration.
в: Physical Review D, Том 100, № 5, 051101, 26.09.2019.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Observation of ψ (3686)→ Ξ (1530)- Ξ ̄ (1530)+ and Ξ (1530)- Ξ ̄ +
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 - 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 - Dbeyssi, A.
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 - 2019/9/26
Y1 - 2019/9/26
N2 - Using 448.1×106 ψ(3686) events collected with the BESIII detector at BEPCII, we employ a single-baryon tagging technique to make the first observation of ψ(3686)→Ξ(1530)-Ξ̄(1530)+ and Ξ(1530)-Ξ̄+ decays with a statistical significance of more than 10σ and 5.0σ, respectively. The branching fractions are measured to be B(ψ(3686)→Ξ(1530)-Ξ̄(1530)+)=(11.45±0.40±0.59)×10-5 and B(ψ(3686)→Ξ(1530)-Ξ̄+)=(0.70±0.11±0.04)×10-5. The angular distribution parameter for ψ(3686)→Ξ(1530)-Ξ̄(1530)+ is determined to be α=0.40±0.24±0.06, which agrees with the theoretical predictions within 1σ. The first uncertainties are statistical, and the second systematic.
AB - Using 448.1×106 ψ(3686) events collected with the BESIII detector at BEPCII, we employ a single-baryon tagging technique to make the first observation of ψ(3686)→Ξ(1530)-Ξ̄(1530)+ and Ξ(1530)-Ξ̄+ decays with a statistical significance of more than 10σ and 5.0σ, respectively. The branching fractions are measured to be B(ψ(3686)→Ξ(1530)-Ξ̄(1530)+)=(11.45±0.40±0.59)×10-5 and B(ψ(3686)→Ξ(1530)-Ξ̄+)=(0.70±0.11±0.04)×10-5. The angular distribution parameter for ψ(3686)→Ξ(1530)-Ξ̄(1530)+ is determined to be α=0.40±0.24±0.06, which agrees with the theoretical predictions within 1σ. The first uncertainties are statistical, and the second systematic.
KW - BARYON
KW - ANTIBARYON
KW - DECAYS
KW - J/PSI
UR - http://www.scopus.com/inward/record.url?scp=85072923437&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.100.051101
DO - 10.1103/PhysRevD.100.051101
M3 - Article
AN - SCOPUS:85072923437
VL - 100
JO - Physical Review D
JF - Physical Review D
SN - 2470-0010
IS - 5
M1 - 051101
ER -
ID: 23379363