Exclusive decay of the upsilon into h(c), the X(3940) and X(4160)
Zhu RL(朱瑞林); Zhu, RL
刊名PHYSICAL REVIEW D
2015
卷号92期号:7页码:74017
学科分类Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.92.074017
通讯作者朱瑞林
文章类型Article
英文摘要In this paper, we study double charmonia production in upsilon peaks, especially a S-wave charmonium eta(c) and a P-wave charmonium h(c)(P-1(1)), or a S-wave charmonium J/psi and the X(3940) and X(4160) within the nonrelativistic QCD (NRQCD) approach, which is a powerful tool to realize the factorization of double charmonia production in electron-positron annihilation. The J(PC) = 1(--) state Upsilon(nS) can provide an ideal laboratory for studying the properties of double-heavy quarkonium and also can separate the perturbative and nonperturbative parts due to the large heavy quark mass compared with the typical hadron scale Lambda(QCD). Explanation of the X(3940) and X(4160) as the 3(1)S(0) and 4(1)S(0) states, respectively, are compatible with the observed upper limits for the branching fractions of Upsilon(1S, 2S) -> J/psi + X, where X = X(3940), X(4160) by the Belle Collaboration. The branching fractions of Upsilon(1S, 2S, 3S) -> eta(c) + h(c)(P-1(1)) are predicted to be around 10(-6), which shall be tested in Belle-II experiments.
类目[WOS]Astronomy & Astrophysics ; Physics, Particles & Fields
收录类别SCI
WOS记录号WOS:000362900100005
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被引频次:6[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/228771
专题中国科学院高能物理研究所_实验物理中心_期刊论文
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Zhu RL,Zhu, RL. Exclusive decay of the upsilon into h(c), the X(3940) and X(4160)[J]. PHYSICAL REVIEW D,2015,92(7):74017.
APA 朱瑞林,&Zhu, RL.(2015).Exclusive decay of the upsilon into h(c), the X(3940) and X(4160).PHYSICAL REVIEW D,92(7),74017.
MLA 朱瑞林,et al."Exclusive decay of the upsilon into h(c), the X(3940) and X(4160)".PHYSICAL REVIEW D 92.7(2015):74017.
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