Work

Moduli decays and gravitinos

Year: 2006

Type: article

Abstract: One proposed solution of the moduli problem of string cosmology requires that the moduli are quite heavy, their decays reheating the Universe to temperatures above the scale of nucleosynthesis. In many of these scenarios, the moduli are approximately supersymmetric; it is then crucial that the decays to gravitinos are helicity suppressed. In this paper, we discuss situations where these decays are, and are not, suppressed. We also comment on a possible gravitino problem from inflaton decay.

Source: Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields

DOI: 10.1103/physrevd.73.123518

Authors: Michael Dine, Ryuichiro Kitano, Alexander Morisse, Yuri Shirman

Institutions: University of California, Santa Cruz, SLAC National Accelerator Laboratory, Stanford University, Los Alamos National Laboratory

Language: English

Topic: Cosmology and Gravitation Theories

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2074852649

FWCI: 10.94

Cites: 25

Cited by: 182

Related to: 10