Photophilic Higgs from sgoldstino mixing
High Energy Physics - Phenomenology
2013-05-30 v1
Abstract
The spontaneous breaking of linearly realized N=1 supersymmetry implies the existence of a pseudo-Goldstone fermion, the goldstino, and of its complex scalar superpartner, the sgoldstino. The latter has generically sizable tree-level couplings to Standard Model gauge bosons while its couplings to SM fermions are suppressed. We consider a light sgoldstino, with a mass around 1 TeV, that mixes with a SM-like Higgs scalar at around 125 GeV. We show that such a mixing can enhance the Higgs to di-photon signal rate while evading all the relevant experimental bounds and without significantly affecting the other decay channels.
Cite
@article{arxiv.1207.0803,
title = {Photophilic Higgs from sgoldstino mixing},
author = {Brando Bellazzini and Christoffer Petersson and Riccardo Torre},
journal= {arXiv preprint arXiv:1207.0803},
year = {2013}
}
Comments
8 pages, 6 figures and 1 table