Abstract
A heavy scalar field such as moduli or an inflaton generally mixes with a field responsible for the supersymmetry breaking. We study the scalar decay into the standard model particles and their superpartners, gravitinos, and the supersymmetry-breaking sector, particularly paying attention to decay modes that proceed via the mixing between the scalar and the supersymmetry-breaking field. The impacts of the new decay processes on cosmological scenarios are also discussed; the modulus field generically produces too many gravitinos, and most of the inflation models tend to result in too high reheating temperature and/or gravitino overproduction.
Original language | English |
---|---|
Article number | 023531 |
Journal | Physical Review D - Particles, Fields, Gravitation and Cosmology |
Volume | 74 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2006 |
Externally published | Yes |
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Physics and Astronomy (miscellaneous)