Superconformal generalizations of auxiliary vector modified polynomial f(R) theories


Boran S., Kahya E. O. , Özdemir N. , Özkan M. , Zorba U.

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, no.4, 2020 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: Issue: 4
  • Publication Date: 2020
  • Doi Number: 10.1088/1475-7516/2020/04/005
  • Title of Journal : JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
  • Keywords: inflation, supersymmetry and cosmology

Abstract

We present the supersymmetric completion of the auxiliary vector modified polynomial f (R) theories in their dual scalar-tensor theory formulation that interpolate between the auxiliary vector modified polynomial f (R) theories and chaotic inflation with the powerlaw potential V(phi) proportional to phi P. The supersymmetrization is achieved in two steps: first, we introduce a superconformal theory for three chiral multiplets by choosing a conformal Kahler potential and a conformal superpotential. In the second step, we use one of the chiral multiplets to compensate for the superconformal symmetries and achieve the Kahler potential and the superpotential while the other two are used to realize inflation with a stable inflationary trajectory. The stability of the inflationary trajectory requires certain deformations to the Kahler potential which we discuss their compatibility against the inflationary observables from the latest Planck data.