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Search for a stable alignment limit in two-Higgs-doublet models

Das, Dipankar LU and Saha, Ipsita (2015) In Physical Review D - Particles, Fields, Gravitation and Cosmology 91(9).
Abstract

We study the conditions required to make the two-Higgs-doublet-model (2HDM) scalar potential stable up to the Planck scale. The lightest CP-even scalar is assumed to have been found at the LHC and the alignment limit is imposed in view of the LHC Higgs data. We find that ensuring stability up to scales 1010GeV necessitates the introduction of a soft breaking parameter in the theory. Even then, some interesting correlations between the nonstandard masses and the soft breaking parameter need to be satisfied. Consequently, a 2HDM becomes completely determined by only two nonstandard parameters, namely, tanβ and a mass parameter, m0, with tanβ3. These observations make a 2HDM, in the stable alignment limit, more predictive than ever.

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author
and
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review D - Particles, Fields, Gravitation and Cosmology
volume
91
issue
9
article number
095024
publisher
American Physical Society
external identifiers
  • scopus:84930945935
ISSN
1550-7998
DOI
10.1103/PhysRevD.91.095024
language
English
LU publication?
no
id
5d32a086-dc7e-4575-bbee-262042279902
date added to LUP
2019-05-22 15:32:47
date last changed
2022-04-02 17:37:31
@article{5d32a086-dc7e-4575-bbee-262042279902,
  abstract     = {{<p>We study the conditions required to make the two-Higgs-doublet-model (2HDM) scalar potential stable up to the Planck scale. The lightest CP-even scalar is assumed to have been found at the LHC and the alignment limit is imposed in view of the LHC Higgs data. We find that ensuring stability up to scales 1010GeV necessitates the introduction of a soft breaking parameter in the theory. Even then, some interesting correlations between the nonstandard masses and the soft breaking parameter need to be satisfied. Consequently, a 2HDM becomes completely determined by only two nonstandard parameters, namely, tanβ and a mass parameter, m0, with tanβ3. These observations make a 2HDM, in the stable alignment limit, more predictive than ever.</p>}},
  author       = {{Das, Dipankar and Saha, Ipsita}},
  issn         = {{1550-7998}},
  language     = {{eng}},
  month        = {{05}},
  number       = {{9}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review D - Particles, Fields, Gravitation and Cosmology}},
  title        = {{Search for a stable alignment limit in two-Higgs-doublet models}},
  url          = {{http://dx.doi.org/10.1103/PhysRevD.91.095024}},
  doi          = {{10.1103/PhysRevD.91.095024}},
  volume       = {{91}},
  year         = {{2015}},
}