Suppressed Non-Gaussianity in the Curvaton Model
Suppressed Non-Gaussianity in the Curvaton Model
复制标题
Curvaton 模型中的非高斯性抑制
DOI：
10.1103/physrevd.89.123515
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
M.Takimoto
中科院分区：
文献类型：
--
作者：
K.Mukaida;K.Nakayama;M.Takimoto
We show that the local type non-Gaussianity in a class of curvaton models is suppressed, i.e., the nonlinearity parametersand those related with higher order statistics can be at most, even if the curvaton energy density is subdominant at the decay. This situation is naturally realized in a very simple curvaton potential with quadratic term plus quartic term.
