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Title: Moduli Decays and Gravitinos

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 inaton decay.

Authors:
; ; ;
Publication Date:
Research Org.:
Stanford Linear Accelerator Center (SLAC)
Sponsoring Org.:
USDOE
OSTI Identifier:
881532
Report Number(s):
SLAC-PUB-11805
hep-ph/0604140; TRN: US0603024
DOE Contract Number:  
AC02-76SF00515
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; COSMOLOGY; DECAY; HELICITY; NUCLEOSYNTHESIS; UNIVERSE; Phenomenology-HEP,HEPPH

Citation Formats

Dine, Michael, Kitano, Ryuichiro, Morisse, Alexander, and Shirman, Yuri. Moduli Decays and Gravitinos. United States: N. p., 2006. Web. doi:10.2172/881532.
Dine, Michael, Kitano, Ryuichiro, Morisse, Alexander, & Shirman, Yuri. Moduli Decays and Gravitinos. United States. doi:10.2172/881532.
Dine, Michael, Kitano, Ryuichiro, Morisse, Alexander, and Shirman, Yuri. Fri . "Moduli Decays and Gravitinos". United States. doi:10.2172/881532. https://www.osti.gov/servlets/purl/881532.
@article{osti_881532,
title = {Moduli Decays and Gravitinos},
author = {Dine, Michael and Kitano, Ryuichiro and Morisse, Alexander and Shirman, Yuri},
abstractNote = {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 inaton decay.},
doi = {10.2172/881532},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Apr 21 00:00:00 EDT 2006},
month = {Fri Apr 21 00:00:00 EDT 2006}
}

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