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题名: Color-singlet relativistic correction to inclusive J/psi production associated with light hadrons at B factories
作者: Jia, Yu
刊名: PHYSICAL REVIEW D
出版日期: 2010
卷号: 82, 期号:3, 页码:-
关键词: HEAVY QUARKONIUM ;  INELASTIC PHOTOPRODUCTION ;  E(+)E(-) ANNIHILATION ;  J-PSI ;  TEVATRON ;  DECAYS ;  STATES ;  FRAGMENTATION ;  COLLIDERS
学科分类: Physics
通讯作者: Jia, Y , Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
部门归属: [Jia, Y] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China; [Jia, Y] Chinese Acad Sci, Theoret Phys Ctr Sci Facil, Beijing 100049, Peoples R China; [Jia, Y] Chinese Acad Sci, Kavli Inst Theoret Phys China, Beijing 100049, Peoples R China
英文摘要: We study the first-order relativistic correction to the associated production of J/psi with light hadrons at B factory experiments at root s = 10.58 GeV, in the context of nonrelativistic QCD (NRQCD) factorization. We employ a strategy for NRQCD expansion that slightly deviates from the orthodox doctrine, in that the matching coefficients are not truly of a "short-distance'' nature, but explicitly depend upon physical kinematic variables rather than partonic ones. Our matching method, with validity guaranteed by the Gremm-Kapustin relation, is particularly suited for the inclusive quarkonium production and decay processes with involved kinematics, exemplified by the process e(+)e(-) -> J/psi + gg considered in this work. Despite some intrinsic ambiguity affiliated with the order-nu(2) NRQCD matrix element, if we choose its value as what has been extracted from a recent Cornell-potential-model-based analysis, including the relative order-nu(2) effect is found to increase the lowest-order prediction for the integrated J/psi cross section by about 30%, and exert a modest impact on J/psi energy, angular and polarization distributions except near the very upper end of the J/psi energy. The order-nu(2) contribution to the energy spectrum becomes logarithmically divergent at the maximum of J/psi energy. A consistent analysis may require that these large end-point logarithms be resummed to all orders in alpha(s).
资助者: National Natural Science Foundation of China[10875130, 10935012]; Chinese Academy of Sciences[KJCX2.YW.W10]
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000280963800002
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5064
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Jia, Yu. Color-singlet relativistic correction to inclusive J/psi production associated with light hadrons at B factories[J]. PHYSICAL REVIEW D,2010,82(3):-.
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