Hide and Seek with Massive Fields in Modulus Mediation
High Energy Physics - Phenomenology
2019-10-16 v1 High Energy Physics - Theory
Abstract
We study the modulus mediation of supersymmetry breaking motivated by superstring theory. We show that the renormalization group running of the soft supersymmetry breaking parameters due to the interactions of massive fields is canceled by the threshold corrections at one-loop order, if their mass is given by nonperturbative dynamics controlled by the same modulus that mediates supersymmetry breaking and a sum rule of the modular weights holds for the Yukawa couplings. As an example, we discuss order reduction of lepton flavor violation in the supersymmetric seesaw mechanism, which revives the parameter space already excluded.
Cite
@article{arxiv.1909.13804,
title = {Hide and Seek with Massive Fields in Modulus Mediation},
author = {Ken-ichi Okumura},
journal= {arXiv preprint arXiv:1909.13804},
year = {2019}
}
Comments
17 pages, 2 figures, accepted by Physical Review Letters