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.
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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