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

A bstract 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 po...

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Published inThe journal of high energy physics Vol. 2013; no. 10; pp. 1 - 14
Main Authors Bhattacharyya, Gautam, Das, Dipankar, Pal, Palash B., Rebelo, M. N.
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 01.10.2013
Springer Nature B.V
Subjects
Classical and Quantum Gravitation
Correlation
Decoupling
Elementary Particles
Higgs bosons
High energy physics
Mathematical models
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Relativity Theory
Scalars
Scattering amplitude
Stability
String Theory
Symmetry
Beyond Standard Model
Higgs Physics
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Summary:A bstract 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 ρ -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 125 GeV Higgs boson and its correlation with the corresponding Z γ width.
Bibliography:ObjectType-Article-1
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ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP10(2013)081