TY - JOUR
T1 - Strong dynamics at the Planck scale as a solution to the cosmological moduli problem
AU - Takahashi, Fuminobu
AU - Yanagida, Tsutomu T.
PY - 2011
Y1 - 2011
N2 - We argue that strong dynamics at the Planck scale can solve the cosmological moduli problem. We discuss its implications for inflation models, and find that a certain type of multi-field inflation model is required for this mechanism to work, since otherwise it would lead to the serious η-problem. Combined with the inflaton-induced gravitino problem, we show that a chaotic inflation with a discrete symmetry naturally avoids both problems. Interestingly, the focus point supersymmetry is predicted when this mechanism is applied to the Polonyi model.
AB - We argue that strong dynamics at the Planck scale can solve the cosmological moduli problem. We discuss its implications for inflation models, and find that a certain type of multi-field inflation model is required for this mechanism to work, since otherwise it would lead to the serious η-problem. Combined with the inflaton-induced gravitino problem, we show that a chaotic inflation with a discrete symmetry naturally avoids both problems. Interestingly, the focus point supersymmetry is predicted when this mechanism is applied to the Polonyi model.
KW - Cosmology of theories beyond the SM
KW - Supergravity models
KW - Supersymmetric effective theories
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U2 - 10.1007/JHEP01(2011)139
DO - 10.1007/JHEP01(2011)139
M3 - Article
AN - SCOPUS:80053123330
SN - 1029-8479
VL - 2011
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
IS - 1
M1 - 139
ER -