We analyze the inclusive semileptonic decays B --> X-S l(+)l(-) in the framework of the supersymmetric standard model with non-universal soft-breaking terms at GUT scale. We show that the general trend of universal and non-universal models is a decreasing of branching ratio (BR) and increasing of energy asymmetry (AS). However, only non-universal models can have chances to get very large enhancements in BR and AS, corresponding to large (negative) SUSY contributions to the b --> sgamma amplitude. (C) 2002 Elsevier Science B.V. All rights reserved.
Titolo: | On the B -> X-s l(+)l(-) decays in general supersymmetric models |
Autori: | |
Data di pubblicazione: | 2002 |
Rivista: | |
Abstract: | We analyze the inclusive semileptonic decays B --> X-S l(+)l(-) in the framework of the supersymmetric standard model with non-universal soft-breaking terms at GUT scale. We show that the general trend of universal and non-universal models is a decreasing of branching ratio (BR) and increasing of energy asymmetry (AS). However, only non-universal models can have chances to get very large enhancements in BR and AS, corresponding to large (negative) SUSY contributions to the b --> sgamma amplitude. (C) 2002 Elsevier Science B.V. All rights reserved. |
Handle: | http://hdl.handle.net/11368/2634216 |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1016/S0370-2693(02)01350-3 |
Appare nelle tipologie: | 1.1 Articolo in Rivista |
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