Vacuum structure of Alternative Left-Right Model

Abstract We investigate an Alternative Left-Right Model (ALRM) with SU(2) L as well as SU(2) R gauge groups, but unlike the traditional left-right symmetric models (LRSM) is not symmetric under the exchange of the fermion content. Interestingly, it can be embedded in E 6, while its low energy Higgs...

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Main Authors: Mariana Frank, Chayan Majumdar, Poulose Poulose, Supriya Senapati, Urjit A. Yajnik
Format: Article
Language:English
Published: SpringerOpen 2022-03-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP03(2022)065
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author Mariana Frank
Chayan Majumdar
Poulose Poulose
Supriya Senapati
Urjit A. Yajnik
author_facet Mariana Frank
Chayan Majumdar
Poulose Poulose
Supriya Senapati
Urjit A. Yajnik
author_sort Mariana Frank
collection DOAJ
description Abstract We investigate an Alternative Left-Right Model (ALRM) with SU(2) L as well as SU(2) R gauge groups, but unlike the traditional left-right symmetric models (LRSM) is not symmetric under the exchange of the fermion content. Interestingly, it can be embedded in E 6, while its low energy Higgs structure resembles the LRSM, involving Higgs doublets χ L,R and one Higgs bidoublet Φ. We analyze the scalar potential and the vacuum structure of the theory analytically to ensure the stability of scalar potential via bounded from below (BFB) and copositivity criteria, accompanied by a numerical study. We establish the necessary criteria for electric charge-preserving vacua, yielding constraints on various coupling parameters of the theory. Finally we obtain constraints on the parameters of the model from collider data on the masses of the Higgs scalars.
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spelling doaj.art-fcae133adc9b41099833bd6579d822342022-12-22T01:12:08ZengSpringerOpenJournal of High Energy Physics1029-84792022-03-012022313010.1007/JHEP03(2022)065Vacuum structure of Alternative Left-Right ModelMariana Frank0Chayan Majumdar1Poulose Poulose2Supriya Senapati3Urjit A. Yajnik4Department of Physics, Concordia UniversityDepartment of Physics, Indian Institute of Technology BombayDepartment of Physics, Indian Institute of Technology GuwahatiDepartment of Physics, Indian Institute of Technology BombayDepartment of Physics, Indian Institute of Technology BombayAbstract We investigate an Alternative Left-Right Model (ALRM) with SU(2) L as well as SU(2) R gauge groups, but unlike the traditional left-right symmetric models (LRSM) is not symmetric under the exchange of the fermion content. Interestingly, it can be embedded in E 6, while its low energy Higgs structure resembles the LRSM, involving Higgs doublets χ L,R and one Higgs bidoublet Φ. We analyze the scalar potential and the vacuum structure of the theory analytically to ensure the stability of scalar potential via bounded from below (BFB) and copositivity criteria, accompanied by a numerical study. We establish the necessary criteria for electric charge-preserving vacua, yielding constraints on various coupling parameters of the theory. Finally we obtain constraints on the parameters of the model from collider data on the masses of the Higgs scalars.https://doi.org/10.1007/JHEP03(2022)065Beyond Standard ModelHiggs PhysicsSpontaneous Symmetry Breaking
spellingShingle Mariana Frank
Chayan Majumdar
Poulose Poulose
Supriya Senapati
Urjit A. Yajnik
Vacuum structure of Alternative Left-Right Model
Journal of High Energy Physics
Beyond Standard Model
Higgs Physics
Spontaneous Symmetry Breaking
title Vacuum structure of Alternative Left-Right Model
title_full Vacuum structure of Alternative Left-Right Model
title_fullStr Vacuum structure of Alternative Left-Right Model
title_full_unstemmed Vacuum structure of Alternative Left-Right Model
title_short Vacuum structure of Alternative Left-Right Model
title_sort vacuum structure of alternative left right model
topic Beyond Standard Model
Higgs Physics
Spontaneous Symmetry Breaking
url https://doi.org/10.1007/JHEP03(2022)065
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AT chayanmajumdar vacuumstructureofalternativeleftrightmodel
AT poulosepoulose vacuumstructureofalternativeleftrightmodel
AT supriyasenapati vacuumstructureofalternativeleftrightmodel
AT urjitayajnik vacuumstructureofalternativeleftrightmodel