Hybrid anomaly-gravity mediation with flavor

Details Hybrid anomaly-gravity mediation with flavor Hybrid anomaly-gravity mediation with flavor

2011-02-14

arxiv.org/abs/1102.2875v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, 2 figures. Talk given at Discrete '10: Symposium on Prospects in the Physics of Discrete Symmetries, Rome, Italy, 6-1

Scientific paper

We study models with contributions of similar size to the soft masses from anomaly- and gravity mediation, thereby curing the tachyonic slepton problem of anomaly mediation. A possible origin of this hybrid setup in a 5-dimensional brane world is briefly discussed. The absence of excessive flavor violation is explained by alignment. The gravitino can be heavy enough so that the gravitino problem of supersymmetric theories with leptogenesis is avoided. The model has a characteristic signature: It predicts the distinctive gaugino mass pattern of anomaly mediation and, at the same time, O(1) slepton mass splittings.

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