Nondecoupling of charged scalars in Higgs decay to two photons and symmetries of the scalar potential
(2015) In Physical Review D - Particles, Fields, Gravitation and Cosmology 91(1).- Abstract
A large class of two- and three-Higgs-doublet models with discrete symmetries has been employed in the literature to address various aspects of flavor physics. We analyze how the precision measurement of the Higgs to diphoton signal strength would severely constrain these scenarios due to the nondecoupling behavior of the charged scalars, to the extent that in the presence of exact discrete symmetry, the number of additional noninert scalar doublets can be constrained no matter how heavy the nonstandard scalars are. We demonstrate that if the scalar potential is endowed with appropriate global continuous symmetries together with soft breaking parameters, decoupling can be achieved thanks to the unitarity constraints on the mass-square... (More)
A large class of two- and three-Higgs-doublet models with discrete symmetries has been employed in the literature to address various aspects of flavor physics. We analyze how the precision measurement of the Higgs to diphoton signal strength would severely constrain these scenarios due to the nondecoupling behavior of the charged scalars, to the extent that in the presence of exact discrete symmetry, the number of additional noninert scalar doublets can be constrained no matter how heavy the nonstandard scalars are. We demonstrate that if the scalar potential is endowed with appropriate global continuous symmetries together with soft breaking parameters, decoupling can be achieved thanks to the unitarity constraints on the mass-square differences of the heavy scalars.
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- author
- Bhattacharyya, Gautam and Das, Dipankar LU
- publishing date
- 2015-01-07
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review D - Particles, Fields, Gravitation and Cosmology
- volume
- 91
- issue
- 1
- article number
- 015005
- publisher
- American Physical Society
- external identifiers
-
- scopus:84920913054
- ISSN
- 1550-7998
- DOI
- 10.1103/PhysRevD.91.015005
- language
- English
- LU publication?
- no
- id
- 77400166-57b9-4b00-a095-51dc3373dd13
- date added to LUP
- 2019-05-22 15:33:26
- date last changed
- 2022-04-02 17:37:31
@article{77400166-57b9-4b00-a095-51dc3373dd13,
abstract = {{<p>A large class of two- and three-Higgs-doublet models with discrete symmetries has been employed in the literature to address various aspects of flavor physics. We analyze how the precision measurement of the Higgs to diphoton signal strength would severely constrain these scenarios due to the nondecoupling behavior of the charged scalars, to the extent that in the presence of exact discrete symmetry, the number of additional noninert scalar doublets can be constrained no matter how heavy the nonstandard scalars are. We demonstrate that if the scalar potential is endowed with appropriate global continuous symmetries together with soft breaking parameters, decoupling can be achieved thanks to the unitarity constraints on the mass-square differences of the heavy scalars.</p>}},
author = {{Bhattacharyya, Gautam and Das, Dipankar}},
issn = {{1550-7998}},
language = {{eng}},
month = {{01}},
number = {{1}},
publisher = {{American Physical Society}},
series = {{Physical Review D - Particles, Fields, Gravitation and Cosmology}},
title = {{Nondecoupling of charged scalars in Higgs decay to two photons and symmetries of the scalar potential}},
url = {{http://dx.doi.org/10.1103/PhysRevD.91.015005}},
doi = {{10.1103/PhysRevD.91.015005}},
volume = {{91}},
year = {{2015}},
}