Vacuum statistics and parameter tuning for F-term supersymmetry breaking
Abstract
We carry out a model-independent EFT method study on the vacuum statistics of general F-term SUSY breaking models. Assuming a smooth distribution of Lagrangian parameters, SUSY breaking vacua are rare in global SUSY models with a canonical K\"ahler potential, and have a peaked distribution near the cut-off of the SUSY breaking scale in both global SUSY and SUGRA models with a general K\"ahler potential. After including different mass scales in the Lagrangian, we compare the total number of SUSY and non-SUSY vacua and estimate quantitatively the rareness of SUSY breaking. The EFT method provides a general view to the amount of parameter tuning needed for a metastable SUSY breaking vacuum. The tuning also indicates the importance of R-symmetries in SUSY breaking even for metastable SUSY breaking.
Keywords
Cite
@article{arxiv.1105.3172,
title = {Vacuum statistics and parameter tuning for F-term supersymmetry breaking},
author = {Zheng Sun},
journal= {arXiv preprint arXiv:1105.3172},
year = {2013}
}
Comments
18 pages, 1 figure; v2: add references, published version