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Jia, Yu; Jia, Y , Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
Color-singlet relativistic correction to inclusive J/psi production associated with light hadrons at B factories
发表期刊PHYSICAL REVIEW D
关键词Heavy Quarkonium Inelastic Photoproduction e(+)e(-) Annihilation J-psi Tevatron Decays States Fragmentation Colliders
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).
2010
ISSN1550-7998
卷号82期号:3页码:-
学科领域Physics
收录类别SCI
项目资助者National Natural Science Foundation of China[10875130, 10935012]; Chinese Academy of Sciences[KJCX2.YW.W10] ; National Natural Science Foundation of China[10875130, 10935012]; Chinese Academy of Sciences[KJCX2.YW.W10] ; National Natural Science Foundation of China[10875130, 10935012]; Chinese Academy of Sciences[KJCX2.YW.W10] ; National Natural Science Foundation of China[10875130, 10935012]; Chinese Academy of Sciences[KJCX2.YW.W10]
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被引频次:18[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/5064
专题理论物理所科研产出_SCI论文
通讯作者Jia, Y , Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
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Jia, Yu,Jia, Y , Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China. Color-singlet relativistic correction to inclusive J/psi production associated with light hadrons at B factories[J]. PHYSICAL REVIEW D,2010,82(3):-.
APA Jia, Yu,&Jia, Y , Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China.(2010).Color-singlet relativistic correction to inclusive J/psi production associated with light hadrons at B factories.PHYSICAL REVIEW D,82(3),-.
MLA Jia, Yu,et al."Color-singlet relativistic correction to inclusive J/psi production associated with light hadrons at B factories".PHYSICAL REVIEW D 82.3(2010):-.
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