A common scenario leading to a small vacuum energy and stable super-massive particles

A toy model giving rise to long-lived super-heavy particles and a small vacuum density energy, of the order of the one measured in the present universe, is presented. It consists in a hidden sector, invariant under an SU(2) gauge symmetry, with some masses provided by a specific double Higgs mechani...

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Autor principal: Santillán, O.P.
Formato: JOUR
Materias:
cosmological constant
stable super-heavy particles
Wimpzillas
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_02177323_v28_n27_p_Santillan
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_02177323_v28_n27_p_Santillan
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spelling todo:paper_02177323_v28_n27_p_Santillan2023-10-03T15:10:25Z A common scenario leading to a small vacuum energy and stable super-massive particles Santillán, O.P. cosmological constant stable super-heavy particles Wimpzillas A toy model giving rise to long-lived super-heavy particles and a small vacuum density energy, of the order of the one measured in the present universe, is presented. It consists in a hidden sector, invariant under an SU(2) gauge symmetry, with some masses provided by a specific double Higgs mechanism. It is assumed that the Standard Model particles are also charged under the SU(2) interaction, which is weak enough to allow super-heavy particles with mean lifetime with values larger than the age of the universe. The hidden fermions and the hidden Higgs are super-heavy, which mass values close to the GUT scale. In addition, there is a spontaneously broken U(1) chiral symmetry, giving rise to a pseudoscalar Goldstone boson which we refer as a hidden axion. The vacuum energy of the universe is identified as the potential energy of this pseudoscalar. © 2013 World Scientific Publishing Company. Fil:Santillán, O.P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_02177323_v28_n27_p_Santillan
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic cosmological constant
stable super-heavy particles
Wimpzillas
spellingShingle cosmological constant
stable super-heavy particles
Wimpzillas
Santillán, O.P.
A common scenario leading to a small vacuum energy and stable super-massive particles
topic_facet cosmological constant
stable super-heavy particles
Wimpzillas
description A toy model giving rise to long-lived super-heavy particles and a small vacuum density energy, of the order of the one measured in the present universe, is presented. It consists in a hidden sector, invariant under an SU(2) gauge symmetry, with some masses provided by a specific double Higgs mechanism. It is assumed that the Standard Model particles are also charged under the SU(2) interaction, which is weak enough to allow super-heavy particles with mean lifetime with values larger than the age of the universe. The hidden fermions and the hidden Higgs are super-heavy, which mass values close to the GUT scale. In addition, there is a spontaneously broken U(1) chiral symmetry, giving rise to a pseudoscalar Goldstone boson which we refer as a hidden axion. The vacuum energy of the universe is identified as the potential energy of this pseudoscalar. © 2013 World Scientific Publishing Company.
format JOUR
author Santillán, O.P.
author_facet Santillán, O.P.
author_sort Santillán, O.P.
title A common scenario leading to a small vacuum energy and stable super-massive particles
title_short A common scenario leading to a small vacuum energy and stable super-massive particles
title_full A common scenario leading to a small vacuum energy and stable super-massive particles
title_fullStr A common scenario leading to a small vacuum energy and stable super-massive particles
title_full_unstemmed A common scenario leading to a small vacuum energy and stable super-massive particles
title_sort common scenario leading to a small vacuum energy and stable super-massive particles
url http://hdl.handle.net/20.500.12110/paper_02177323_v28_n27_p_Santillan
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