A principle for the Yukawa couplings

TL;DR

This paper proposes a fundamental principle that constrains the Yukawa couplings in the Standard Model, suggesting they are not arbitrary but determined by underlying theoretical considerations.

Contribution

It introduces a principle that explains the origin of Yukawa couplings, reducing their arbitrariness in the Standard Model.

Findings

Yukawa couplings are not arbitrary but follow from a specific principle.

The principle provides a possible explanation for the pattern of fermion masses.

This approach offers a new perspective on the origin of fermion mass hierarchies.

Abstract

Yukawa couplings in the Standard Model are introduced in its most general form, that is, completely arbitrary complex numbers. Here we show that their origin could not be general but dictated by a principle.