Study of J/psi and psi(3686) -> Sigma(1385)(0)(Sigma)over-bar(1385)(0) and Xi(0)(Xi)over-bar(0) | |
BESIII Collaboration | |
2017 | |
Source Publication | PHYSICS LETTERS B
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ISSN | 0370-2693 |
EISSN | 1873-2445 |
Volume | 770Pages:217-225 |
Subtype | Article |
Abstract | We study the decays of J/psi and psi(3686) to the final states Sigma(1385)(0)(Sigma) over bar (1385)(0) and Xi(0)(Xi) over bar (0) based on a single baryon tag method using data samples of (1310.6 +/- 7.0) x 10(6) J/psi and (447.9 +/- 2.9) x 10(6) psi(3686) events collected with the BESIII detector at the BEPCII collider. The decays to Sigma(1385)(0)(Sigma) over bar (1385)(0) are observed for the first time. The measured branching fractions of J/psi and psi(3686) to Xi(0)(Xi) over bar (0) are in good agreement with, and much more precise than, the previously published results. The angular parameters for these decays are also measured for the first time. The measured angular decay parameter for J/psi -> Sigma(1385)(0)(Sigma) over bar (1385)(0), alpha = -0.64 +/- 0.03 +/- 0.10, is found to be negative, different to the other decay processes in this measurement. In addition, the "12% rule" and isospin symmetry in the decays of J/psi and psi(3686) to Xi(Xi) over bar and Sigma(1385)(Sigma) over bar (1385) are tested. (C) 2017 The Author(s). Published by Elsevier B.V. |
Keyword | Charmonium Branching fraction Angular distribution |
DOI | 10.1016/j.physletb.2017.04.048 |
WOS Keyword | BARYON-ANTIBARYON PAIRS ; DECAYS |
Indexed By | SCI ; SCOPUS ; ADS ; INSPIREHEP |
Language | 英语 |
WOS Research Area | Astronomy & Astrophysics ; Physics |
WOS Subject | Astronomy & Astrophysics ; Physics, Nuclear ; Physics, Particles & Fields |
WOS ID | WOS:000404196500031 |
ADS Bibcode | 2017PhLB..770..217A |
ADS URL | https://ui.adsabs.harvard.edu/abs/2017PhLB..770..217A |
ADS CITATIONS | https://ui.adsabs.harvard.edu/abs/2017PhLB..770..217A/citations |
AXRIV CODE | 1612 |
inspireid | 1506414 |
inspireURL | https://inspirehep.net/record/1506414 |
Citation statistics |
Cited Times:16 [INSPIRE]
Cited Times:37 [ADS]
|
Document Type | 期刊论文 |
Identifier | http://ir.ihep.ac.cn/handle/311005/284429 |
Collection | 实验物理中心 |
Affiliation | 中国科学院高能物理研究所 |
First Author Affilication | Institute of High Energy |
Recommended Citation GB/T 7714 | BESIII Collaboration. Study of J/psi and psi(3686) -> Sigma(1385)(0)(Sigma)over-bar(1385)(0) and Xi(0)(Xi)over-bar(0)[J]. PHYSICS LETTERS B,2017,770:217-225. |
APA | BESIII Collaboration.(2017).Study of J/psi and psi(3686) -> Sigma(1385)(0)(Sigma)over-bar(1385)(0) and Xi(0)(Xi)over-bar(0).PHYSICS LETTERS B,770,217-225. |
MLA | BESIII Collaboration."Study of J/psi and psi(3686) -> Sigma(1385)(0)(Sigma)over-bar(1385)(0) and Xi(0)(Xi)over-bar(0)".PHYSICS LETTERS B 770(2017):217-225. |
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