No-go for tree-level R-symmetry breaking
Abstract
We show that in gauge mediation models with tree-level R-symmetry breaking where supersymmetry and R-symmetries are broken by different fields, the gaugino mass either vanishes at one loop or finds a contribution from loop-level R-symmetry breaking. Thus tree-level R-symmetry breaking for phenomenology is either no-go or redundant in the simplest type of models. Including explicit messenger mass terms in the superpotential with a particular R-charge arrangement is helpful to bypass the no-go theorem, and the resulting gaugino mass is suppressed by the messenger mass scale.
Keywords
Cite
@article{arxiv.1412.0183,
title = {No-go for tree-level R-symmetry breaking},
author = {Feihu Liu and Muyang Liu and Zheng Sun},
journal= {arXiv preprint arXiv:1412.0183},
year = {2019}
}
Comments
8 pages, 7 figures; v2: discussion on Driac gauginos and references added; v3: a section on bypassing the no-go added, R-charge notation changed; v4: typos, EPJC pre-published version