Spontaneously Broken N=2 Supergravity Without Light Mirror Fermions
L. Girardello, M. Porrati, A. Zaffaroni
TL;DR
This paper introduces a spontaneously broken N=2 supergravity model that naturally generates realistic mass spectra, including heavy mirror fermions and light physical fermions, advancing the development of realistic N=2 theories.
Contribution
It presents a novel N=2 supergravity model with soft supersymmetry breaking that achieves realistic fermion mass hierarchies without light mirror fermions.
Findings
Mirror quarks and leptons acquire masses around 100 GeV.
Physical fermions remain light, consistent with observations.
The model reduces to a globally supersymmetric N=2 system in the flat limit.
Abstract
We present a spontaneously broken N=2 supergravity model that reduces in the flat limit to a globally supersymmetric N=2 system with explicit soft supersymmetry breaking terms. These soft terms generate a mass O(100 GeV) for mirror quarks and leptons, while leaving the physical fermions light, thereby overcoming one of the major obstacles towards the construction of a realistic N=2 model of elementary interactions.
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