Composite Messenger Baryon as a Cold Dark Matter

Details Composite Messenger Baryon as a Cold Dark Matter Composite Messenger Baryon as a Cold Dark Matter

2007-07-17

arxiv.org/abs/0707.2463v1

Phys.Lett.B654:110-112,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, 1 figure

Scientific paper

10.1016/j.physletb.2007.08.047

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.

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