Composite Messenger Baryon as a Cold Dark Matter
High Energy Physics - Phenomenology
2008-11-26 v1
Abstract
Among various supersymmetric (SUSY) models, gauge-mediated SUSY breaking models with an ultra-light gravitino of mass m_{3/2} \lesssim O(10) eV are very attractive, since they are completely free from notorious gravitino problems. A drawback of such a scenario is the absence of the supersymmetric cold dark matter. In this letter, we propose that a baryonic bound state of strongly interacting messenger particles, with a mass of O(100) TeV, can naturally be the cold dark matter. We also exemplify a model which realizes such a scenario.
Cite
@article{arxiv.0707.2463,
title = {Composite Messenger Baryon as a Cold Dark Matter},
author = {K. Hamaguchi and S. Shirai and T. T. Yanagida},
journal= {arXiv preprint arXiv:0707.2463},
year = {2008}
}
Comments
7 pages, 1 figure