Next-to-leading order QCD predictions for pair production of neutral Higgs bosons at the CERN Large Hadron Collider

CORC > 理论物理研究所 > 中国科学院理论物理研究所 > 理论物理所科研产出 > 理论物理所1978-2010年知识产出

	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.
刊名	PHYSICAL REVIEW D
	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)
ISSN号	1550-7998
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).
学科主题	Physics
URL标识	查看原文
WOS记录号	WOS:000229440300061
公开日期	2012-08-30
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/13834]
专题	理论物理研究所_理论物理所1978-2010年知识产出
通讯作者	Jin, LG , Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China.
推荐引用方式 GB/T 7714	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):-.