Calculations of scalaron decay probabilities

TL;DR

This paper investigates scalaron decay probabilities into various particles using two independent methods, providing new calculations and comparisons to resolve discrepancies in existing literature.

Contribution

It presents novel calculations of scalaron decay probabilities into multiple particle types using two independent approaches, clarifying previous conflicting results.

Findings

Decay probabilities into different particles calculated

Comparison of results with existing literature

Discrepancies in previous studies addressed

Abstract

The particle production through the scalaron decays are considered for several different channels. The central part of the work is dedicated to a study of the decay probability into two complex minimally coupled massless scalars. The calculations are performed by two different independent methods. In addition we calculated the decay probability into real minimally coupled massless scalars, conformally coupled massive scalars, massive fermions, and gauge bosons. The results are compared with the published papers which in some cases disagree with each other.