Thermally Favourable Gauge Mediation
Ioannis Dalianis, Zygmunt Lalak
TL;DR
This paper examines how thermal effects influence the selection of metastable supersymmetry-breaking vacua in gauge mediation models, emphasizing the role of weak coupling and thermalized messengers in vacuum stability.
Contribution
It introduces a detailed analysis of thermal evolution in gauge mediation, highlighting conditions under which metastable vacua are thermally favored.
Findings
Metastable susy breaking vacua are thermally selected with thermalized messengers.
Weak coupling of the susy breaking sector favors thermal vacuum selection.
Standard Model degrees of freedom significantly impact thermal evolution.
Abstract
We discuss the thermal evolution of the spurion and messenger fields of ordinary gauge mediation models taking into account the Standard Model degrees of freedom. It is shown that for thermalized messengers the metastable susy breaking vacuum becomes thermally selected provided that the susy breaking sector is sufficiently weakly coupled to messengers or to any other observable field.
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