No scale SUGRA SO(10) derived Starobinsky model of inflation

摘要

We show that a supersymmetric renormalizable theory based on gauge group SO(10) and Higgs system 10 circle plus 210 circle plus 126 circle plus (126) over bar with no scale supergravity can lead to a Starobinsky kind of potential for inflation. Successful inflation is possible in the cases where the potential during inflation corresponds to SU(3)(C) x SU(2)(L) x SU(2)(R) x U(1)(B-L), SU(5) x U(1) and flipped SU(5) x U(1) intermediate symmetry with a suitable choice of superpotential parameters. The reheating in such a scenario can occur via non-perturbative-decay of inflaton i.e. through "preheating". After the end of reheating, when universe cools down, the finite temperature potential can have a minimum which corresponds to MSSM. (C) 2015 The Authors. Published by Elsevier B.V.