Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8191024 | Physics Letters B | 2012 | 7 Pages |
Abstract
We study an extension of the standard anomaly/gauge mediation scenario where the messenger fields have direct interactions with an extra gauge singlet. This realizes a phenomenologically viable NMSSM-like scenario free of the μ-bμ problem. Current cosmological constraints imply a small size for the anomaly-mediation contributions, unless some source of R-parity violation is permitted. In the latter case the allowed regions in the parameter space can be substantially larger than in the corresponding gauge-mediation scenario.
Related Topics
Physical Sciences and Engineering
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Authors
J. de Blas, A. Delgado,