Flavor Violation and Hierarchical Sfermions

TL;DR

This paper explores the implications of hierarchical sfermion masses in supersymmetry, analyzing flavor violation constraints and making predictions for flavor-violating parameters based on naturalness considerations.

Contribution

It provides a detailed phenomenological analysis of flavor violation in models with hierarchical sfermion masses, offering new bounds and predictions distinct from degenerate scenarios.

Findings

Hierarchical sfermion scheme constrains flavor-violating parameters.

Predicted natural size for flavor violation parameters.

Distinct phenomenological signatures compared to degenerate models.

Abstract

Naturalness arguments do not forbid the possibility that the first two families of squarks and sleptons are heavier than the rest of the supersymmetric spectrum. In this framework, we study the phenomenology related to the flavor physics and we give bounds on the flavor violating parameters that we compare with the case of nearly degenerate squarks. The peculiar structure of the hierarchical scheme allows us to make definite predictions and suggests also a natural size for the flavor violating parameters.