Restricted flavor structure of soft SUSY breaking trilinear couplings

2000/11/16 by T. Kobayashi, Tatsuo Kobayashi, O. Vives +1
Physics and Astronomy · #Charge (physics) #Flavor #Maxima and minima #Observable #Quantum Chromodynamics and Particle Interactions #Quantum and Classical Electrodynamics #Quantum optics and atomic interactions #Supersymmetry #Supersymmetry breaking #hep-ph

paper · pdf · doi:10.1016/s0370-2693(01)00225-8

published as Phys.Lett. B506 (2001) 323-330 · 14 pages, no figures

arxiv created 2000/11/16 · openalex publication_date 2001/05/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We analyze the flavor structure of the trilinear couplings in the different theoretical models of SUSY breaking. We generically obtain A_ij= A^L_i + A^R_j in all the models examined. In fact, this is the rigorous form when SUSY breaking effects appear through the Kahler metric of chiral fields or through wave-function renormalization. Indeed, the low-energy phenomenological requirements from the absence of charge and color breaking minima and the measurements in flavor changing neutral current (FCNC) observables strongly favor this restricted form of the trilinear matrices. As a straightforward consequence, the number of unknown parameters associated with the trilinear couplings is decreased in a factor of 2.

Citations

• Towards a theory of soft terms for the supersymmetric standard model
• Quark mass matrices in orbifold models
• Model-independent analysis of soft terms in effective supergravity and in string theory
• A complete analysis of FCNC and CP constraints in general SUSY extensions of the standard model