Cosmological moduli problem and thermal inflation models - art. no. 123509

Citation
T. Asaka et M. Kawasaki, Cosmological moduli problem and thermal inflation models - art. no. 123509, PHYS REV D, 6012(12), 1999, pp. 3509
Citations number
39
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW D
ISSN journal
0556-2821 → ACNP
Volume
6012
Issue
12
Year of publication
1999
Database
ISI
SICI code
0556-2821(199912)6012:12<3509:CMPATI>2.0.ZU;2-Y
Abstract
In superstring theories, there exist various dilaton and modulus fields who se masses are expected to be of the order of the gravitino mass m(3/2). The se fields lead to serious; cosmological difficulties, the so called "cosmol ogical moduli problem,'' because a large number of moduli particles are pro duced as the coherent oscillations after primordial inflation. We make a co mprehensive study of whether the thermal inflation can solve the cosmologic al moduli problem in the whole modulus mass region m(phi) similar to 10 eV- 10(4) GeV predicted by both hidden sector supersymmetry (SUSY) breaking and gauge-mediated SUSY breaking models. In particular, we take into account t he primordial inflation model whose reheating temperature is so low that it s reheating process finishes after the thermal inflation ends. We find that the above mass region m(phi)(similar or equal to m(3/2)) similar to 10 eV- 104 GeV survives from various cosmological constraints in the presence of t hermal inflation. [S0556-2821(99)01220-5].