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Abstract:

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.

Registro:

Documento: Artículo
Título:A common scenario leading to a small vacuum energy and stable super-massive particles
Autor:Santillán, O.P.
Filiación:Departamento de Matemática, FCEyN, Universidad de Buenos Aires, Buenos Aires, Argentina
Palabras clave:cosmological constant; stable super-heavy particles; Wimpzillas
Año:2013
Volumen:28
Número:27
DOI: http://dx.doi.org/10.1142/S0217732313500995
Título revista:Modern Physics Letters A
Título revista abreviado:Mod. Phys. Lett. A
ISSN:02177323
CODEN:MPLAE
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02177323_v28_n27_p_Santillan

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Citas:

---------- APA ----------
(2013) . A common scenario leading to a small vacuum energy and stable super-massive particles. Modern Physics Letters A, 28(27).
http://dx.doi.org/10.1142/S0217732313500995
---------- CHICAGO ----------
Santillán, O.P. "A common scenario leading to a small vacuum energy and stable super-massive particles" . Modern Physics Letters A 28, no. 27 (2013).
http://dx.doi.org/10.1142/S0217732313500995
---------- MLA ----------
Santillán, O.P. "A common scenario leading to a small vacuum energy and stable super-massive particles" . Modern Physics Letters A, vol. 28, no. 27, 2013.
http://dx.doi.org/10.1142/S0217732313500995
---------- VANCOUVER ----------
Santillán, O.P. A common scenario leading to a small vacuum energy and stable super-massive particles. Mod. Phys. Lett. A. 2013;28(27).
http://dx.doi.org/10.1142/S0217732313500995