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题名: Next-to-leading order QCD predictions for pair production of neutral Higgs bosons at the CERN Large Hadron Collider
作者: Jin, LG ;  Li, CS ;  Li, Q ;  Liu, JJ ;  Oakes, RJ
刊名: PHYSICAL REVIEW D
出版日期: 2005
卷号: 71, 期号:9, 页码:-
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)
学科分类: Physics
通讯作者: Jin, LG , Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China.
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
英文摘要: 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).
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000229440300061
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13834
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
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):-.
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