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Study of chi(cj) decaying into phi k*(892)(k)over-bar

文献类型:期刊论文

作者Ablikim, M.1; Achasov, M. N.9,60; Ai, X. C.1; Albayrak, O.5; Albrecht, M.4; Ambrose, D. J.49; Amoroso, A.1,53,55; An, F. F.1; An, Q.50; Bai, J. Z.1
刊名Physical review d
出版日期2015-06-16
卷号91期号:11页码:16
ISSN号1550-7998
DOI10.1103/physrevd.91.112008
英文摘要Using a data sample of 106 million psi(3686) events collected with the besiii detector operated at the bepcii storage ring, we study for the first time the decays chi(cj) -> phi(ksk +/-)-k-0 pi(-/+) and chi(cj) -> phi k+k-pi(0) in the e1 radiative transition psi(3686) -> gamma chi(cj). the decays are dominated by the three-body decay chi(cj) -> phi k*(892)(k) over bar. we measure branching fractions for this reaction via the neutral and charged k*(892) and find them consistent with each other within the expectation of isospin symmetry. in the k (k) over bar pi invariant mass distribution, a structure near the k*(892)(k) over bar mass threshold is observed, and the corresponding mass and width are measured to be 1412 +/- 4(stat) +/- 8(sys) mev/c(2) and gamma = 84 +/- 12(stat) +/- 40(sys) mev, respectively. the observed state favors an assignment to the h(1)(1380), considering its possible j(pc) and comparing its mass, width and decay mode to those reported in the particle data group.
语种英语
出版者AMER PHYSICAL SOC
WOS记录号WOS:000356216700001
URI标识http://www.irgrid.ac.cn/handle/1471x/1639519
专题高能物理研究所
通讯作者Ablikim, M.
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.Ruhr Univ Bochum, 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, Lahore 54000, Pakistan
9.SB RAS BINP, GI Budker Inst Nucl Phys, Novosibirsk 630090, Russia
10.Heavy Ion Res GmbH, GSI Helmholtzctr, D-64291 Darmstadt, Germany
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GB/T 7714
Ablikim, M.,Achasov, M. N.,Ai, X. C.,et al. Study of chi(cj) decaying into phi k*(892)(k)over-bar[J]. Physical review d,2015,91(11):16.
APA Ablikim, M..,Achasov, M. N..,Ai, X. C..,Albayrak, O..,Albrecht, M..,...&Zou, J. H..(2015).Study of chi(cj) decaying into phi k*(892)(k)over-bar.Physical review d,91(11),16.
MLA Ablikim, M.,et al."Study of chi(cj) decaying into phi k*(892)(k)over-bar".Physical review d 91.11(2015):16.

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来源:高能物理研究所

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