Scalar sector properties of two-Higgs-doublet models with a global U(1) symmetry

被引：57
|
作者：
Bhattacharyya, Gautam [1 ]
Das, Dipankar [1 ]
Pal, Palash B. [1 ]
Rebelo, M. N. [2 ]
机构：
[1] Saha Inst Nucl Phys, Kolkata 700064, W Bengal, India
[2] Univ Lisbon, Inst Super Tecn, Ctr Fis Teor Particulas, P-1049001 Lisbon, Portugal
来源：
JOURNAL OF HIGH ENERGY PHYSICS | 2013年 / 10期
关键词：
Higgs Physics; Beyond Standard Model; MINIMAL FLAVOR VIOLATION; TREE-LEVEL UNITARITY; HIGGS-BOSON; BOUNDS; BREAKING; ANATOMY; MASSES;
D O I：
10.1007/JHEP10(2013)081
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 analyze the scalar sector properties of a general class of two-Higgs-doublet models which has a global U(1) symmetry in the quartic terms. We find constraints on the parameters of the potential from the considerations of unitarity of scattering amplitudes, the global stability of the potential and the rho-parameter. We concentrate on the spectrum of the non-standard scalar masses in the decoupling limit which is preferred by the Higgs data at the LHC. We exhibit charged-Higgs induced contributions to the diphoton decay width of the 125GeV Higgs boson and its correlation with the corresponding Z gamma width.
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页数：14
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