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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; Wu, XG; Chang, CH , CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China.
2005
发表期刊PHYSICAL REVIEW D
ISSN1550-7998
卷号72期号:11页码:-
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.
部门归属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
关键词B-c Meson P-wave States Neutral-current S-wave Charm Tevatron Energies Leptoproduction
学科领域Physics
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收录类别SCI
WOS记录号WOS:000234274400016
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被引频次:37[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/311006/13713
专题理论物理所1978-2010年知识产出
通讯作者Chang, CH , CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China.
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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):-.
APA Chang, CH,Qiao, CF,Wang, JX,Wu, XG,&Chang, CH , CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China..(2005).Hadronic production of the B-c(B*(c)) meson induced by the heavy quarks inside the collision hadrons.PHYSICAL REVIEW D,72(11),-.
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):-.
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