Two-Field Q-ball Solutions of Supersymmetric Hybrid Inflation
نویسندگان
چکیده
We demonstrate the existence of two-field Q-ball solutions of the scalar field equations of supersymmetric Dand F-term hybrid inflation. The solutions consist of a complex inflaton field together with a real symmetry breaking field. Such inflatonic Q-balls may play a fundamental role in reheating and the postinflation era of supersymmetric hybrid inflation models. [email protected] [email protected]
منابع مشابه
F-Term Inflation Q-Balls
A general analysis of Q-ball solutions of the supersymmetric F-term hybrid inflation field equations is given. The solutions consist of a complex inflaton field and a real symmetry breaking field, with a conserved global charge associated with the inflaton. It is shown that the Q-ball solutions for any value of the superpotential coupling, κ, may be obtained from those with κ = 1 by rescaling t...
متن کاملGrowth of Inflaton Perturbations and the Post-Inflation Era in Supersymmetric Hybrid Inflation Models
It has been shown that hybrid inflation may end with the formation of nontopological solitons of inflaton field. As a first step towards a fully realistic picture of the post-inflation era and reheating in supersymmetric hybrid inflation models, we study the classical scalar field equations of a supersymmetric hybrid inflation model using a semi-analytical ansatz for the spatial dependence of t...
متن کاملSupersymmetric Hybrid Inflation with Non-Minimal Kähler potential
Minimal supersymmetric hybrid inflation based on a minimal Kähler potential predicts a spectral index ns ∼ 0.98. On the other hand, WMAP three year data prefers a central value ns ≈ 0.95. We propose a class of supersymmetric hybrid inflation models based on the same minimal superpotential but with a non-minimal Kähler potential. Including radiative corrections using the one-loop effective poten...
متن کاملFrom Q-Walls to Q-Balls
We study Q-ball type solitons in arbitrary spatial dimensions in the setting recently described by Kusenko, where the scalar field potential has a flat direction which rises much slower than φ. We find that the general formula for energy as a function of the charge is, Ed ∼ Q d in spatial dimension d. We show that the Hamiltonian governing the stability analysis of certain Q-wall configurations...
متن کاملSupersymmetric Hybrid Inflation
The non-supersymmetric and supersymmetric versions of hybrid inflation are summarized. In the latter, the necessary inclination along the inflationary trajectory is provided by radiative corrections. Supersymmetric hybrid inflation (with its extensions) is an extremely ‘natural’ inflationary scenario. The reasons are that it does not require ‘tiny’ parameters, its superpotential has the most ge...
متن کامل