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arXiv · 0707.2463

Composite Messenger Baryon as a Cold Dark Matter

K. Hamaguchi·S. Shirai·T. T. Yanagida
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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.

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K. Hamaguchi, S. Shirai, T. T. Yanagida. 2007-07-17. Composite Messenger Baryon as a Cold Dark Matter. https://doi.org/10.1016/j.physletb.2007.08.047

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