Gauge Mediation with Sequestered Supersymmetry Breaking

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Gauge mediation models have two drawbacks, that is, the so-called μ-problem and a lack of predictability of the gravitino dark matter abundance. We show that conformal sequestering in the supersymmetry breaking sector offers attractive solutions to both problems. The correct mass scale of the μand B_μterms is generated by taking the gravitino mass of O(100) GeV without causing the flavor-changing neutral-current problem. Moreover, a large anomalous dimension of the supersymmetry breaking field naturally realizes the small stau and neutralino mass difference required for the coannihilation to work yielding the right dark matter abundance.
23 pages, 4 figures, 2 tables

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High Energy Physics - Phenomenology

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http://salesiana.dossiersoluciones.com/handle/123456789/201857

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0808.0848
 http://arxiv.org/abs/0808.0848
 Phys.Rev.D78:075003,2008
 doi:10.1103/PhysRevD.78.075003

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arXiv