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Zhu, RL; Zhu, RL (reprint author), Shanghai Jiao Tong Univ, INPAC, Shanghai Key Lab Particle Phys & Cosmol, Dept Phys & Astron, Shanghai 200240, Peoples R China.
Exclusive decay of the upsilon into h(c), the X(3940) and X(4160)
发表期刊PHYSICAL REVIEW D
语种英语
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.
2015
卷号92期号:7页码:74017
学科领域Astronomy & Astrophysics ; Physics
DOIhttp://dx.doi.org/10.1103/PhysRevD.92.074017
收录类别SCI
项目资助者key laboratory grant from the Office of Science and Technology, Shanghai Municipal Government [11DZ2260700] ; key laboratory grant from the Office of Science and Technology, Shanghai Municipal Government [11DZ2260700] ; key laboratory grant from the Office of Science and Technology, Shanghai Municipal Government [11DZ2260700] ; key laboratory grant from the Office of Science and Technology, Shanghai Municipal Government [11DZ2260700] ; Shanghai Natural Science Foundation [15ZR1423100] ; Shanghai Natural Science Foundation [15ZR1423100] ; Shanghai Natural Science Foundation [15ZR1423100] ; Shanghai Natural Science Foundation [15ZR1423100] ; State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF111CJ1] ; State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF111CJ1] ; State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF111CJ1] ; State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF111CJ1]
引用统计
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/20830
专题理论物理所科研产出_SCI论文
通讯作者Zhu, RL (reprint author), Shanghai Jiao Tong Univ, INPAC, Shanghai Key Lab Particle Phys & Cosmol, Dept Phys & Astron, Shanghai 200240, Peoples R China.
推荐引用方式
GB/T 7714
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 Zhu, RL,&Zhu, RL .(2015).Exclusive decay of the upsilon into h(c), the X(3940) and X(4160).PHYSICAL REVIEW D,92(7),74017.
MLA Zhu, RL,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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