TY - JOUR
T1 - Dark matter chaotic inflation in light of BICEP2
AU - Mukaida, Kyohei
AU - Nakayama, Kazunori
PY - 2014/8/1
Y1 - 2014/8/1
N2 - We propose an economical model in which a singlet 2-odd scalar field accounts for the primordial inflation and the present dark matter abundance simultaneously in the light of recent BICEP2 result. Interestingly, the reheating temperature and the thermal dark matter abundance are closely connected by the same interaction between the singlet scalar and the standard model Higgs. In addition, the reheating temperature turns out to be quite high, TR ≳ 1012 GeV, and hence the thermal leptogenesis is compatible with this model. Therefore, it can be one of the simplest cosmological scenarios.
AB - We propose an economical model in which a singlet 2-odd scalar field accounts for the primordial inflation and the present dark matter abundance simultaneously in the light of recent BICEP2 result. Interestingly, the reheating temperature and the thermal dark matter abundance are closely connected by the same interaction between the singlet scalar and the standard model Higgs. In addition, the reheating temperature turns out to be quite high, TR ≳ 1012 GeV, and hence the thermal leptogenesis is compatible with this model. Therefore, it can be one of the simplest cosmological scenarios.
KW - cosmology of theories beyond the SM
KW - inflation
KW - particle physics - cosmology connection
KW - physics of the early universe
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U2 - 10.1088/1475-7516/2014/08/062
DO - 10.1088/1475-7516/2014/08/062
M3 - Article
AN - SCOPUS:84918845032
SN - 1475-7516
VL - 2014
JO - Journal of Cosmology and Astroparticle Physics
JF - Journal of Cosmology and Astroparticle Physics
IS - 8
M1 - 062
ER -