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Gong, B; Wang, JX; Zhang, HF; Gong, B (reprint author), CAS, Inst High Energy Phys, POB 918 4, Beijing 100049, Peoples R China.
QCD corrections to gamma production via color-octet states at the Tevatron and LHC
Source PublicationPHYSICAL REVIEW D
Language英语
KeywordTo-leading-order J/psi Collisions Hadroproduction Association Quarkonium Colliders
AbstractThe next-to-leading order QCD corrections to gamma production via S-wave color-octet states gamma[S-1(0)(8), S-3(1)(8)] at the Tevatron and LHC is calculated. The K factors of total cross section ( ratio of next-to-leading order to leading order) are 1.313 and 1.379 for gamma[S-1(0)(8)] and gamma[S-3(1)(8)] at the Tevatron, while at the LHC they are 1.044 and 1.182, respectively. By fitting the experimental data from the CDF and D0, the matrix elements for S-wave color-octet states are obtained. And new predictions for gamma(1S) production are presented. The prediction for the polarization of inclusive gamma contains large uncertainty rising from the polarization of gamma(1S) from feed-down of chi(b). The production of gamma(3S) at the hadron colliders is also studied to avoid the large uncertainty mentioned above. To further clarify the situation, new measurements on the production and polarization for direct gamma(1S) and gamma(3S) are expected.
2011
ISSN1550-7998
Volume83Issue:11Pages:114021
Subject AreaPhysics
Indexed BySCI
Funding OrganizationNational Natural Science Foundation of China [10475083, 10979056, 10935012, 11005137]; Chinese Academy of Science [INFO-115-B01]; China Postdoctoral Science Foundation [20090460535] ; National Natural Science Foundation of China [10475083, 10979056, 10935012, 11005137]; Chinese Academy of Science [INFO-115-B01]; China Postdoctoral Science Foundation [20090460535] ; National Natural Science Foundation of China [10475083, 10979056, 10935012, 11005137]; Chinese Academy of Science [INFO-115-B01]; China Postdoctoral Science Foundation [20090460535] ; National Natural Science Foundation of China [10475083, 10979056, 10935012, 11005137]; Chinese Academy of Science [INFO-115-B01]; China Postdoctoral Science Foundation [20090460535]
Citation statistics
Cited Times:27[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/14338
Collection理论物理所科研产出_SCI论文
Corresponding AuthorGong, B (reprint author), CAS, Inst High Energy Phys, POB 918 4, Beijing 100049, Peoples R China.
Recommended Citation
GB/T 7714
Gong, B,Wang, JX,Zhang, HF,et al. QCD corrections to gamma production via color-octet states at the Tevatron and LHC[J]. PHYSICAL REVIEW D,2011,83(11):114021.
APA Gong, B,Wang, JX,Zhang, HF,&Gong, B .(2011).QCD corrections to gamma production via color-octet states at the Tevatron and LHC.PHYSICAL REVIEW D,83(11),114021.
MLA Gong, B,et al."QCD corrections to gamma production via color-octet states at the Tevatron and LHC".PHYSICAL REVIEW D 83.11(2011):114021.
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