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Exclusive decay of the upsilon into h(c), the X(3940) and X(4160)
Zhu RL(朱瑞林); Zhu, RL
2015
发表期刊PHYSICAL REVIEW D
卷号92期号:7页码:74017
通讯作者朱瑞林
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.
文章类型Article
学科领域Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.92.074017
收录类别SCI
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
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
专题实验物理中心
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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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