It is shown that a component of the dynamical affine connection, which is independent of the metric, can drive inflation in agreement with observations. This provides a geometrical origin for the inflaton. It is also found that the decays of this field, which has spin 0 and odd parity, into Higgs bosons can reheat the Universe up to a sufficiently high temperature.
Salvio, A. (2022). Inflating and reheating the Universe with an independent affine connection. PHYSICAL REVIEW D, 106(10) [10.1103/physrevd.106.103510].
Inflating and reheating the Universe with an independent affine connection
Alberto Salvio
2022-01-01
Abstract
It is shown that a component of the dynamical affine connection, which is independent of the metric, can drive inflation in agreement with observations. This provides a geometrical origin for the inflaton. It is also found that the decays of this field, which has spin 0 and odd parity, into Higgs bosons can reheat the Universe up to a sufficiently high temperature.File in questo prodotto:
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