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Estimate of the hadronic production of the doubly charmed baryon Xi(cc) in the general-mass variable-flavor-number scheme
Chang, CH; Qiao, CF; Wang JX(王建雄); Wang, JX; Wu, XG
2006
发表期刊PHYSICAL REVIEW D
卷号73期号:9页码:94022
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To try to understand the experimental observation of SELEX Collaboration and to check the existent results in literature, we have done a theoretical investigation on hadronic production of the doubly charmed baryon Xi(cc) (Xi(++)(cc) or Xi(+)(cc)) under the general-mass variable-flavor-number (GM-VFN) scheme. A similar study of the production at LHC and TEVATRON is also performed. The production here is realized via production of a binding diquark either (cc)[S-3(1)]((3) over bar) (in configuration S-wave and in color (3) over bar) or (cc)[S-1(0)](6) (in configuration S-wave and in color 6) instead of only the diquark (cc)[S-3(1)]((3) over bar) is considered. Numerical results show that the production via each configuration of the diquark is comparable at LHC and TEVATRON under the condition that the NRQCD matrix elements relevant to the diquark production are assumed approximately to be equal to each other; and the contributions from collision of a so-called "extrinsic" charm and a gluon inside the colliding hadrons are comparable with, or even greater than, those from the so-called gluon-gluon fusion, especially, in the region of small transverse-momentum p(t). We also note that due to the contributions from the "extrinsic" charm, the theoretical prediction on the production of the baryon Xi(cc) is raised by one order in comparison with the existent predictions almost.
学科领域Astronomy & Astrophysics; Physics
研究领域[WOS]Astronomy & Astrophysics ; Physics ; Astronomy & Astrophysics ; Physics
DOI10.1103/PhysRevD.73.094022
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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:000237950900038
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240879
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. Estimate of the hadronic production of the doubly charmed baryon Xi(cc) in the general-mass variable-flavor-number scheme[J]. PHYSICAL REVIEW D,2006,73(9):94022.
APA Chang, CH,Qiao, CF,王建雄,Wang, JX,&Wu, XG.(2006).Estimate of the hadronic production of the doubly charmed baryon Xi(cc) in the general-mass variable-flavor-number scheme.PHYSICAL REVIEW D,73(9),94022.
MLA Chang, CH,et al."Estimate of the hadronic production of the doubly charmed baryon Xi(cc) in the general-mass variable-flavor-number scheme".PHYSICAL REVIEW D 73.9(2006):94022.
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