Gravitational corrections to Yukawa systems
O. Zanusso, L. Zambelli, G. P. Vacca, R. Percacci
TL;DR
This paper calculates how gravity influences the evolution of couplings in a scalar-fermion system, showing that Yukawa and scalar quartic couplings become irrelevant at the Gaussian fixed point, with implications for particle physics models.
Contribution
It introduces a Wilsonian approach to compute gravitational corrections to couplings in scalar-fermion systems, applicable to both symmetric and broken phases.
Findings
Yukawa couplings become irrelevant at the Gaussian fixed point
Scalar quartic couplings become irrelevant at the Gaussian fixed point
The approach applies to both symmetric and broken scalar phases
Abstract
We compute the gravitational corrections to the running of couplings in a scalar-fermion system, using the Wilsonian approach. Our discussion is relevant for symmetric as well as for broken scalar phases. We find that the Yukawa and quartic scalar couplings become irrelevant at the Gaussian fixed point.
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