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	Study of j/psi and psi(3686) -> sigma(1385)(0)(sigma)over-bar(1385)(0) and xi(0)(xi)over-bar(0)
	Ablikim, M.1; Achasov, M. N.9,67; Ahmed, S.14; Ai, X. C.1; Albayrak, O.5; Albrecht, M.4; Ambrose, D. J.50; Amoroso, A.55,57; An, F. F.1; An, Q.52,62,63
刊名	Physics letters b
	2017-07-10
卷号	770页码:217-225
关键词	Charmonium Branching fraction Angular distribution
ISSN号	0370-2693
DOI	10.1016/j.physletb.2017.04.048
通讯作者	Wang, x. f.(wangxf@ihep.ac.cn)
英文摘要	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.
WOS关键词	BARYON-ANTIBARYON PAIRS ; DECAYS
WOS研究方向	Astronomy & Astrophysics ; Physics
WOS类目	Astronomy & Astrophysics ; Physics, Nuclear ; Physics, Particles & Fields
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000404196500031
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2177281
专题	高能物理研究所
通讯作者	Wang, X. F.
作者单位	1.Inst High Energy Phys, Beijing 100049, Peoples R China 2.Beihang Univ, Beijing 100191, Peoples R China 3.Beijing Inst Petrochem Technol, Beijing 102617, Peoples R China 4.Bochum Ruhr Univ, D-44780 Bochum, Germany 5.Carnegie Mellon Univ, Pittsburgh, PA 15213 USA 6.Cent China Normal Univ, Wuhan 430079, Peoples R China 7.China Ctr Adv Sci & Technol, Beijing 100190, Peoples R China 8.COMSATS Inst Informat Technol, Def Rd,Raiwind Rd, Lahore 54000, Pakistan 9.G I Budker Inst Nucl Phys SB MS BINP, Novosibirsk 630090, Russia 10.GSI Helmholtzctr Heavy Ion Res GmbH, D-64291 Darmstadt, Germany
推荐引用方式 GB/T 7714	Ablikim, M.,Achasov, M. N.,Ahmed, S.,et al. 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	Ablikim, M..,Achasov, M. N..,Ahmed, S..,Ai, X. C..,Albayrak, O..,...&Zou, J. H..(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	Ablikim, M.,et al."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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