Back to Search Start Over

Scale-independent inflation and hierarchy generation

Authors :
Pedro G. Ferreira
Christopher T. Hill
Graham G. Ross
Source :
Physics Letters B, Vol 763, Iss , Pp 174-178 (2016)
Publication Year :
2016
Publisher :
Elsevier, 2016.

Abstract

We discuss models involving two scalar fields coupled to classical gravity that satisfy the general criteria: (i) the theory has no mass input parameters, (ii) classical scale symmetry is broken only through −112ςϕ2R couplings where ς departs from the special conformal value of 1; (iii) the Planck mass is dynamically generated by the vacuum expectations values (VEVs) of the scalars (iv) there is a stage of viable inflation associated with slow roll in the two-scalar potential; (v) the final vacuum has a small to vanishing cosmological constant and an hierarchically small ratio of the VEVs and the ratio of the scalar masses to the Planck scale. This assumes the paradigm of classical scale symmetry as a custodial symmetry of large hierarchies.

Subjects

Subjects :
Physics
QC1-999

Details

Language :
English
ISSN :
03702693
Volume :
763
Issue :
174-178
Database :
Directory of Open Access Journals
Journal :
Physics Letters B
Publication Type :
Academic Journal
Accession number :
edsdoj.17402be5fb60488ca825d4dd3ebe1f4a
Document Type :
article
Full Text :
https://doi.org/10.1016/j.physletb.2016.10.036