TY - JOUR
T1 - Inflation in supergravity without Kähler potential
AU - Aoki, Shuntaro
AU - Yamada, Yusuke
N1 - Publisher Copyright:
© 2014 American Physical Society.
PY - 2014/12/3
Y1 - 2014/12/3
N2 - We propose a new class of inflation models in supergravity with higher derivative terms. In those models, the Kähler potential does not contain the inflaton multiplet, but a supersymmetric derivative term does. In the models, inflation is effectively driven by a single scalar field with a standard kinetic term and a scalar potential. Remarkably, the so-called η problem does not exist in our models.
AB - We propose a new class of inflation models in supergravity with higher derivative terms. In those models, the Kähler potential does not contain the inflaton multiplet, but a supersymmetric derivative term does. In the models, inflation is effectively driven by a single scalar field with a standard kinetic term and a scalar potential. Remarkably, the so-called η problem does not exist in our models.
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U2 - 10.1103/PhysRevD.90.127701
DO - 10.1103/PhysRevD.90.127701
M3 - Article
AN - SCOPUS:84919343406
SN - 1550-7998
VL - 90
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 12
M1 - 127701
ER -