Gauge-Mediated Supersymmetry Breaking in String Compactifications
Duiliu-Emanuel Diaconescu, Bogdan Florea, Shamit Kachru, Peter Svrcek
TL;DR
This paper constructs string theory models embedding supersymmetry breaking sectors that can mediate SUSY breaking to the Standard Model via gauge or gravity mechanisms, potentially addressing flavor issues.
Contribution
It demonstrates how microscopic details in string compactifications can be tuned to realize different SUSY breaking mediation mechanisms within a unified framework.
Findings
Models show gauge mediation can dominate SUSY breaking transmission.
Adjusting flux choices influences the dominant mediation mechanism.
Potential pathway to top-down solutions for the SUSY flavor problem.
Abstract
We provide string theory examples where a toy model of a SUSY GUT or the MSSM is embedded in a compactification along with a gauge sector which dynamically breaks supersymmetry. We argue that by changing microscopic details of the model (such as precise choices of flux), one can arrange for the dominant mediation mechanism transmitting SUSY breaking to the Standard Model to be either gravity mediation or gauge mediation. Systematic improvement of such examples may lead to top-down models incorporating a solution to the SUSY flavor problem.
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