2002/01/31 by E. Gabrielli, Emidio Gabrielli, Shaaban Khalil +1 · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Particle physics #Particle physics theoretical and experimental studies #Philosophy #Physics #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1016/s0370-2693(02)01350-3
published as Phys.Lett. B530 (2002) 133-141 · 13 pages, 3 figures. References added. To appear in Phys. Lett. B
arxiv created 2002/02/14 · openalex publication_date 2002/03/01 · arxiv updated 2009/11/30 · openalex created_date 2018/10/26 · openalex updated_date 2026/08/05
We analyze the inclusive semileptonic decays B→Xsl+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→sγ amplitude.