Limits on Split Supersymmetry from Gluino Cosmology
高能物理 - 唯象学
2009-11-11 v3
摘要
An upper limit on the masses of scalar superpartners in split supersymmetry is found by considering cosmological constraints on long-lived gluinos. Over most of parameter space, the most stringent constraint comes from big bang nucleosynthesis. A TeV mass gluino must have a lifetime of less than 100 seconds to avoid altering the abundances of D and Li-6. This sets an upper limit on the supersymmetry breaking scale of 10^9 GeV.
引用
@article{arxiv.hep-ph/0504210,
title = {Limits on Split Supersymmetry from Gluino Cosmology},
author = {A. Arvanitaki and C. Davis and P. W. Graham and A. Pierce and J. G. Wacker},
journal= {arXiv preprint arXiv:hep-ph/0504210},
year = {2009}
}
备注
10 pages, 2 figures. v2: Gluino lifetime corrected, conclusions unchanged. v3: references added