Update of global Two-Higgs-Doublet model fits

被引：68
作者：
Chowdhury, Debtosh [1 ,2 ,3 ]
Eberhardt, Otto [4 ]
机构：
[1] Ist Nazl Fis Nucl, Sez Roma, Piazzale Aldo Moro 2, I-00185 Rome, Italy
[2] Ecole Polytech, Ctr Phys Theor, F-91128 Palaiseau, France
[3] Univ Paris Sud, Lab Phys Theor, F-91405 Orsay, France
[4] Inst Fis Corpuscular, Parque Cient,C Catedrat Jose Beltran 2, E-46980 Paterna, Spain
来源：
JOURNAL OF HIGH ENERGY PHYSICS | 2018年 / 05期
基金：
欧洲研究理事会;
关键词：
Beyond Standard Model; Higgs Physics; PROTON-PROTON COLLISIONS; HIGGS-BOSON; FINAL-STATES; PSEUDOSCALAR BOSON; STANDARD MODEL; PP COLLISIONS; ROOT-S=8 TEV; SEARCH; PAIR; RESONANCES;
D O I：
10.1007/JHEP05(2018)161
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We perform global fits of Two-Higgs-Doublet models with a softly broken Z(2) symmetry to recent results from the LHC detectors CMS and ATLAS, that is signal strengths and direct search limits obtained at root s = 8 TeV and root s = 13 TeV. We combine all available ATLAS and CMS constraints with the other relevant theoretical and experimental bounds and present the latest limits on the model parameters. We obtain that deviations from the so-called alignment limit beta-alpha = pi/2 cannot be larger than 0.03 in type I and have to be smaller than 0.02 in the remaining three types. For the latter, we also observe lower limits on the heavy Higgs masses in the global fit. The splittings between these masses cannot exceed 200 GeV in the types I and X and 130 GeV in the types II and Y. Finally, we find that the decay widths of the heavy Higgs particles cannot be larger than 7% of their masses if they are lighter than 1.5 TeV.
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页数：42
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