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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
Residual effects of heavy sparticles in the bottom quark Yukawa coupling: A comparative study for the MSSM and NMSSM
发表期刊PHYSICS LETTERS B
关键词Supersymmetric Standard Model Higgs Bosons Tan-beta Sector
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.
2009
ISSN0370-2693
卷号680期号:2页码:167-171
学科领域Physics
收录类别SCI
项目资助者National Natural Science Foundation of China[10821504, 10725526, 10635030]; Natural Science Foundation of Beijing[1072001] ; National Natural Science Foundation of China[10821504, 10725526, 10635030]; Natural Science Foundation of Beijing[1072001] ; National Natural Science Foundation of China[10821504, 10725526, 10635030]; Natural Science Foundation of Beijing[1072001] ; National Natural Science Foundation of China[10821504, 10725526, 10635030]; Natural Science Foundation of Beijing[1072001]
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被引频次:20[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/311006/5239
专题理论物理所科研产出_SCI论文
通讯作者Yang, JM , Chinese Acad Sci, Key Lab Frontiers Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China
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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.
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