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Scalar sector of two-Higgs-doublet models : A minireview

Bhattacharyya, Gautam and Das, Dipankar LU (2016) In Pramana - Journal of Physics 87(3).
Abstract

A vast literature on the theory and phenomenology of two-Higgs-doublet models (2HDM) exists since long. However, the present situation demands a revisit of some 2HDM properties. Now that a 125 GeV scalar resonance has been discovered at the LHC, with its couplings to other particles showing increasing affinity to the Standard Model Higgs-like behaviour, the 2HDM parameter space is more squeezed than ever. We briefly review the different parametrizations of the 2HDM potential and discuss the constraints on the parameter space arising from the unitarity and stability of the potential together with constraints from the oblique electroweak T -parameter. We also differentiate the consequences of imposing a global continuous U(1) symmetry on... (More)

A vast literature on the theory and phenomenology of two-Higgs-doublet models (2HDM) exists since long. However, the present situation demands a revisit of some 2HDM properties. Now that a 125 GeV scalar resonance has been discovered at the LHC, with its couplings to other particles showing increasing affinity to the Standard Model Higgs-like behaviour, the 2HDM parameter space is more squeezed than ever. We briefly review the different parametrizations of the 2HDM potential and discuss the constraints on the parameter space arising from the unitarity and stability of the potential together with constraints from the oblique electroweak T -parameter. We also differentiate the consequences of imposing a global continuous U(1) symmetry on the potential from a discrete Z2 symmetry.

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Please use this url to cite or link to this publication:
author
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publishing date
type
Contribution to journal
publication status
published
subject
keywords
Beyond Standard Model, Higgs, Two-Higgs doublet
in
Pramana - Journal of Physics
volume
87
issue
3
article number
40
publisher
Springer
external identifiers
  • scopus:84989182924
ISSN
0304-4289
DOI
10.1007/s12043-016-1252-4
language
English
LU publication?
no
id
802c3e78-186a-44ff-bd87-e533d4ab2287
date added to LUP
2019-05-22 15:28:21
date last changed
2022-04-10 17:10:52
@article{802c3e78-186a-44ff-bd87-e533d4ab2287,
  abstract     = {{<p>A vast literature on the theory and phenomenology of two-Higgs-doublet models (2HDM) exists since long. However, the present situation demands a revisit of some 2HDM properties. Now that a 125 GeV scalar resonance has been discovered at the LHC, with its couplings to other particles showing increasing affinity to the Standard Model Higgs-like behaviour, the 2HDM parameter space is more squeezed than ever. We briefly review the different parametrizations of the 2HDM potential and discuss the constraints on the parameter space arising from the unitarity and stability of the potential together with constraints from the oblique electroweak T -parameter. We also differentiate the consequences of imposing a global continuous U(1) symmetry on the potential from a discrete Z<sub>2</sub> symmetry.</p>}},
  author       = {{Bhattacharyya, Gautam and Das, Dipankar}},
  issn         = {{0304-4289}},
  keywords     = {{Beyond Standard Model; Higgs; Two-Higgs doublet}},
  language     = {{eng}},
  month        = {{09}},
  number       = {{3}},
  publisher    = {{Springer}},
  series       = {{Pramana - Journal of Physics}},
  title        = {{Scalar sector of two-Higgs-doublet models : A minireview}},
  url          = {{http://dx.doi.org/10.1007/s12043-016-1252-4}},
  doi          = {{10.1007/s12043-016-1252-4}},
  volume       = {{87}},
  year         = {{2016}},
}