Fermion Masses without Yukawa Couplings

TL;DR

This paper explores how fermion masses can be generated through radiative corrections in supersymmetric models without relying on tree-level Yukawa couplings, analyzing stability and different scenarios for all generations.

Contribution

It presents new scenarios for radiative fermion mass generation in supersymmetry, including conditions for stability and low-scale supersymmetry breaking.

Findings

Radiative mechanisms can generate fermion masses across all generations.

Certain scenarios require low-scale supersymmetry breaking.

Potential issues with color and charge breaking vacua are analyzed.

Abstract

Radiatively generated fermion masses without tree level Yukawa couplings are re-analyzed within supersymmetric models. Special emphasis is given to the possible appearance of color and charge breaking vacua. Several scenarios in which the radiative mechanism can be accomodated for the first, second, and third generation fermion masses are presented. Some of these require a low scale of supersymmetry breaking.