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Li, TJ; Wan, X; Wang, YK; Zhu, SH; Li, TJ (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
Constraints on the universal varying Yukawa couplings: from SM-like to fermiophobic
发表期刊JOURNAL OF HIGH ENERGY PHYSICS
语种英语
关键词Higgs-boson Standard Model Tevatron Lhc
摘要Varying the Standard Model (SM) fermion Yukawa couplings universally by a generic positive scale factor (F-Yu), we study the phenomenological fit to the current available experimental results for the Higgs boson search at hadron colliders. We point out that the Higgs production cross section and its decay branching ratio to gamma gamma can be varied oppositely by F-Yu to make their product almost invariant. Thus, our scenario and the SM Higgs are indistinguishable in the inclusive H > gamma gamma channel. The current measurements on direct Yukawa coupling strength in the H -> bb/tau tau channel are not precise enough to fix the scale factor F-Yu. The most promising is the vector-boson-fusion channel in which the CMS has already observed possible suppression effect on the Yukawa couplings. Further more, the global chi(2) fit of the experimental data can get the optimal value by introducing a suppression factor F-Yu similar to 1/2 on the Skl Yukawa couplings.
2012
ISSN1126-6708
期号9页码:86
学科领域Physics
收录类别SCI
项目资助者Natural Science Foundation of China [11075003, 10821504, 11075194, 11135003]; Postdoctoral Science Foundation of China [Y2Y2231B11]; DOE [DE-FG03-95-Er-40917] ; Natural Science Foundation of China [11075003, 10821504, 11075194, 11135003]; Postdoctoral Science Foundation of China [Y2Y2231B11]; DOE [DE-FG03-95-Er-40917] ; Natural Science Foundation of China [11075003, 10821504, 11075194, 11135003]; Postdoctoral Science Foundation of China [Y2Y2231B11]; DOE [DE-FG03-95-Er-40917] ; Natural Science Foundation of China [11075003, 10821504, 11075194, 11135003]; Postdoctoral Science Foundation of China [Y2Y2231B11]; DOE [DE-FG03-95-Er-40917]
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/15035
专题理论物理所科研产出_SCI论文
通讯作者Li, TJ (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
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Li, TJ,Wan, X,Wang, YK,et al. Constraints on the universal varying Yukawa couplings: from SM-like to fermiophobic[J]. JOURNAL OF HIGH ENERGY PHYSICS,2012(9):86.
APA Li, TJ,Wan, X,Wang, YK,Zhu, SH,&Li, TJ .(2012).Constraints on the universal varying Yukawa couplings: from SM-like to fermiophobic.JOURNAL OF HIGH ENERGY PHYSICS(9),86.
MLA Li, TJ,et al."Constraints on the universal varying Yukawa couplings: from SM-like to fermiophobic".JOURNAL OF HIGH ENERGY PHYSICS .9(2012):86.
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