Starobinsky-type inflation in dynamical supergravity breaking scenarios
Abstract
In the context of dynamical breaking of local supersymmetry (supergravity), including the Deser-Zumino super-Higgs effect, for the simple but quite representative cases of N=1, D=4 supergravity, we discuss the emergence of Starobinsky-type inflation, due to quantum corrections in the effective action arising from integrating out gravitino fields in their massive phase. This type of inflation may occur after a first-stage small-field inflation that characterizes models near the origin of the one-loop effective potential, and it may occur at the nontrivial minima of the latter. Phenomenologically realistic scenarios, compatible with the Planck data, may be expected for the conformal supergravity variants of the basic model.
- Publication:
-
Physical Review D
- Pub Date:
- January 2014
- DOI:
- 10.1103/PhysRevD.89.027703
- arXiv:
- arXiv:1312.5197
- Bibcode:
- 2014PhRvD..89b7703A
- Keywords:
-
- 04.65.+e;
- 12.60.Jv;
- 98.80.Cq;
- Supergravity;
- Supersymmetric models;
- Particle-theory and field-theory models of the early Universe;
- General Relativity and Quantum Cosmology;
- Astrophysics - Cosmology and Extragalactic Astrophysics;
- High Energy Physics - Theory
- E-Print:
- Five pages pdflatex, three pdf figures incorporated