Phenomenology of Light Gauginos
Abstract
I advocate the virtues of a very economical version of the minimal supersymmetric standard model which avoids cosmological problems often encountered in dynamical SUSY-breaking and solves the SUSY-CP problem. Imposing GeV and GeV implies that scalar masses are generally GeV. The gluino and photino are massless at tree level. At 1-loop, the gluino mass is predicted to be in the range MeV and the photino mass can be estimated to be MeV. New hadrons with mass GeV are predicted and described. The ``extra'' flavor singlet pseudoscalar observed in two experiments in the region, if confirmed, is naturally interpreted as the state which gets its mass via the QCD anomaly. Its superpartner, a gluon-gluino bound state, generally has a lifetime longer than sec and would not have shown up in existing searches. Search strategies and other consequences of the scenario are discussed.
Cite
@article{arxiv.hep-ph/9504295,
title = {Phenomenology of Light Gauginos},
author = {Glennys R. Farrar},
journal= {arXiv preprint arXiv:hep-ph/9504295},
year = {2007}
}
Comments
21pp latex, including 3 figs