TY - JOUR

T1 - Cosmological moduli problem in low cutoff theory

AU - Nakayama, Kazunori

AU - Takahashi, Fuminobu

AU - Yanagida, Tsutomu T.

PY - 2012/8/3

Y1 - 2012/8/3

N2 - We show that the cosmological moduli problem is solved without relying on huge late-time entropy production, if the universal cutoff scale of the theory is a few orders of magnitude smaller than the Planck scale. We obtain a general estimate of the modulus abundance in terms of the inflationary scale and reheating temperature, and find, in particular, that the reheating temperature can be high enough for nonthermal leptogenesis to work.

AB - We show that the cosmological moduli problem is solved without relying on huge late-time entropy production, if the universal cutoff scale of the theory is a few orders of magnitude smaller than the Planck scale. We obtain a general estimate of the modulus abundance in terms of the inflationary scale and reheating temperature, and find, in particular, that the reheating temperature can be high enough for nonthermal leptogenesis to work.

UR - http://www.scopus.com/inward/record.url?scp=84864934674&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84864934674&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.86.043507

DO - 10.1103/PhysRevD.86.043507

M3 - Article

AN - SCOPUS:84864934674

SN - 1550-7998

VL - 86

JO - Physical Review D - Particles, Fields, Gravitation and Cosmology

JF - Physical Review D - Particles, Fields, Gravitation and Cosmology

IS - 4

M1 - 043507

ER -