On the renormalization group for the interacting massive scalar field theory in curved space
Guilherme de Berredo-Peixoto, Eduard V. Gorbar, Ilya L. Shapiro
Abstract
The effective action for the interacting massive scalar field in curved space-time is derived using the heat-kernel method. Starting from this effective action, we establish a smooth quadratic form of the low-energy decoupling for the four-scalar coupling constant and for the nonminimal interaction parameter. The evolution of this parameter from the conformal value 1/6 at high energies down to the IR regime is investigated within the two toy models with negative and positive four-scalar coupling constants.
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