O'Raifeartaigh models with spontaneous R-symmetry breaking
Luca Ferretti
TL;DR
This paper explores O'Raifeartaigh models with various R-charge assignments, analyzing how spontaneous breaking of supersymmetry and R-symmetry occurs, and clarifies the connection between runaway directions and R-symmetry.
Contribution
It provides a detailed analysis of vacua in O'Raifeartaigh models with general R-charges, highlighting the conditions for spontaneous symmetry breaking and the role of runaway directions.
Findings
Vacua can spontaneously break supersymmetry and R-symmetry
Most vacua are metastable due to runaway behavior
Runaway directions are closely related to R-symmetry dynamics
Abstract
O'Raifeartaigh models with general R-charge assignments can have vacua where both supersymmetry and R-symmetry are spontaneously broken. Most of these vacua are metastable because the potential shows a runaway behaviour. We explain the relation between runaway directions and R-symmetry.
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