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Next-to-leading order QCD predictions for pair production of neutral Higgs bosons at the CERN Large Hadron Collider
Jin, LG; Li, CS; Li, Q; Liu, JJ; Oakes, RJ; Jin, LG , Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China.
2005
发表期刊PHYSICAL REVIEW D
ISSN1550-7998
卷号71期号:9页码:-
摘要We present the calculations of the complete next-to-leading-order (NLO) inclusive total cross sections for pair production of neutral Higgs bosons through b (b) over bar annihilation in the minimal supersymmetric standard model at the CERN Large Hadron Collider. In our calculations, we used both the dimensional regularization scheme and the dimensional reduction scheme and found that the NLO total cross sections in these two schemes are the same. Our results show that the b (b) over bar -annihilation contributions can exceed those of gg fusion and q (q) over bar annihilation for h(0)H(0), A(0)h(0), and A(0)H(0) productions when tan beta is large. In the case of mu > 0, the NLO corrections enhance the leading-order total cross sections significantly, reaching a few tens of percent, while for mu < 0, the corrections are relatively small, and are negative in most of parameter space. Moreover, the NLO QCD corrections reduce the dependence of the total cross sections on the renormalization/factorization scale, especially for mu < 0. We also used the CTEQ6.1 parton distribution function sets to estimate the uncertainty of leading-order and NLO total cross sections, and found that the uncertainty arising from the choice of parton distribution functions increases with the increasing m(A)(0).
部门归属Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China; Peking Univ, Dept Phys, Beijing 100871, Peoples R China; Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA
关键词Proton-proton Collisions Drell-yan Process Radiative-corrections Standard Model Particle Physics Future Colliders Cross-sections Mass Supersymmetry Gamma-tot(H0->hadrons)
学科领域Physics
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收录类别SCI
WOS记录号WOS:000229440300061
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被引频次:7[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/311006/13834
专题理论物理所SCI论文
通讯作者Jin, LG , Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China.
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Jin, LG,Li, CS,Li, Q,et al. Next-to-leading order QCD predictions for pair production of neutral Higgs bosons at the CERN Large Hadron Collider[J]. PHYSICAL REVIEW D,2005,71(9):-.
APA Jin, LG,Li, CS,Li, Q,Liu, JJ,Oakes, RJ,&Jin, LG , Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China..(2005).Next-to-leading order QCD predictions for pair production of neutral Higgs bosons at the CERN Large Hadron Collider.PHYSICAL REVIEW D,71(9),-.
MLA Jin, LG,et al."Next-to-leading order QCD predictions for pair production of neutral Higgs bosons at the CERN Large Hadron Collider".PHYSICAL REVIEW D 71.9(2005):-.
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