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Hadronic production of the B-c(B*(c)) meson induced by the heavy quarks inside the collision hadrons
Chang, CH; Qiao, CF; Wang JX(王建雄); Wu XG(吴兴刚); Wang, JX; Wu, XG
2005
发表期刊PHYSICAL REVIEW D
卷号72期号:11页码:114009
通讯作者CCAST, World Lab, Beijing 100080, Peoples R China ; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China ; Chinese Acad Sci, Grad Sch, Dept Phys, Beijing 100049, Peoples R China ; Inst High Energy Phys, Beijing 100049, Peoples R China
文章类型Article
摘要In the general-mass variable-flavor-number scheme, the "heavy-quark mechanisms" of B-c(B-c(*)) meson hadroproduction via the subprocesses g+c -> B-c(B-c(*))+center dot and g+(b) over bar -> B-c(B-c(*))+center dot are investigated. In the scheme, possible double counting from these mechanisms and the "light mechanisms" (the gluon-gluon fusion and quark-antiquark annihilation mechanisms) is subtracted properly. The numerical results show that the transverse-momentum, p(t), distribution of the produced B-c(B-c(*)) from the "intrinsic heavy-quark mechanisms" (i.e. the heavy-quark mechanisms in which the double-counting components have been subtracted accordingly) declines faster with the increment of the p(t) than that from the light mechanisms, and only in the small p(t) region (p(t)less than or similar to 7.0 GeV) the intrinsic heavy-quark mechanisms themselves may make remarkable contributions. The combined contributions from the intrinsic heavy-quark mechanisms and the light mechanisms to the production are compared with that obtained by most of the calculations in the literature, which in some sense are within the fixed flavor number scheme at leading order, and we find that the production by virtue of the general-mass variable-flavor-number scheme is more or less the same as the one in the literature, except in the small p(t) region.
学科领域Astronomy & Astrophysics; Physics
研究领域[WOS]Astronomy & Astrophysics ; Physics ; Astronomy & Astrophysics ; Physics
DOI10.1103/PhysRevD.72.114009
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语种英语
研究领域[WOS]Astronomy & Astrophysics ; Physics ; Astronomy & Astrophysics ; Physics
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号WOS:000234274400016
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被引频次:35[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/311005/240942
专题理论物理室
作者单位中国科学院高能物理研究所
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Chang, CH,Qiao, CF,Wang JX,et al. Hadronic production of the B-c(B*(c)) meson induced by the heavy quarks inside the collision hadrons[J]. PHYSICAL REVIEW D,2005,72(11):114009.
APA Chang, CH,Qiao, CF,王建雄,吴兴刚,Wang, JX,&Wu, XG.(2005).Hadronic production of the B-c(B*(c)) meson induced by the heavy quarks inside the collision hadrons.PHYSICAL REVIEW D,72(11),114009.
MLA Chang, CH,et al."Hadronic production of the B-c(B*(c)) meson induced by the heavy quarks inside the collision hadrons".PHYSICAL REVIEW D 72.11(2005):114009.
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