Splitting the Wino Multiplet by Higher-Dimensional Operators in Anomaly Mediation
High Energy Physics - Phenomenology
2009-02-25 v2
Abstract
In a class of AMSB models, the splitting in the Wino multiplet turns out to be very small, such as the often-quoted 170 MeV in minimal AMSB, which originates from MSSM loops. Such a small mass gap is potentially a window into higher scale physics, as it may be sensitive to higher-dimensional operators. We show that still within AMSB one can get a much larger splitting in the Wino multiplet--a few GeV--if the scale of the new physics is comparable to the gravitino mass (which is indeed often the scale of new physics in anomaly mediation).
Cite
@article{arxiv.0809.4832,
title = {Splitting the Wino Multiplet by Higher-Dimensional Operators in Anomaly Mediation},
author = {Micha Berkooz and Yonit Hochberg},
journal= {arXiv preprint arXiv:0809.4832},
year = {2009}
}
Comments
18 pages; v2: references added, matching journal version