Residual effects of heavy sparticles in the bottom quark Yukawa coupling: A comparative study for the MSSM and NMSSM

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	Residual effects of heavy sparticles in the bottom quark Yukawa coupling: A comparative study for the MSSM and NMSSM
	Wang, Wenyu; Xiong, Zhaohua; Yang, Jin Min; Yang, JM , Chinese Acad Sci, Key Lab Frontiers Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China
刊名	PHYSICS LETTERS B
	2009
卷号	680 期号:2 页码:167-171
关键词	Supersymmetric Standard Model Higgs Bosons Tan-beta Sector
ISSN号	0370-2693
英文摘要	If the sparticles are relatively heavy (a few TeV) while the Higgs sector is not so heavy (m(A) is not so large), the Higgs boson Yukawa couplings can harbor sizable quantum effects of sparticles and these large residual effects may play a special role in probing supersymmetry at foreseeable colliders. In this work, focusing on the supersymmetric QCD effects in the hb (b) over bar coupling (h is the lightest CP-even Higgs boson), we give a comparative study for the two popular supersymmetric models: the MSSM and NMSSM. While for both models the supersymmetric QCD can leave over large residual quantum effects in hb (b) over bar coupling, the NMSSM can allow for a much broader region of such effects. Since these residual effects can be over 20% for the hb (b) over bar coupling (and thus over 40% for the ratio Br(h -> b (b) over bar)/Br(h -> tau(+)tau(-))), future measurements may unravel the effects of heavy sparticles or even distinguish the two models. (C) 2009 Elsevier B.V. All rights reserved.
学科主题	Physics
URL标识	查看原文
WOS记录号	WOS:000270608400012
公开日期	2012-08-02
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/5239]
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	Yang, JM , Chinese Acad Sci, Key Lab Frontiers Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Wang, Wenyu,Xiong, Zhaohua,Yang, Jin Min,et al. Residual effects of heavy sparticles in the bottom quark Yukawa coupling: A comparative study for the MSSM and NMSSM[J]. PHYSICS LETTERS B,2009,680(2):167-171.
APA	Wang, Wenyu,Xiong, Zhaohua,Yang, Jin Min,&Yang, JM , Chinese Acad Sci, Key Lab Frontiers Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China.(2009).Residual effects of heavy sparticles in the bottom quark Yukawa coupling: A comparative study for the MSSM and NMSSM.PHYSICS LETTERS B,680(2),167-171.
MLA	Wang, Wenyu,et al."Residual effects of heavy sparticles in the bottom quark Yukawa coupling: A comparative study for the MSSM and NMSSM".PHYSICS LETTERS B 680.2(2009):167-171.