Effects of Flavor Violation on Split Supersymmetry

TL;DR

This paper explores how flavor mixings in ultra-heavy scalar fermions of split supersymmetry models can lead to light sfermions, affecting rare processes and collider phenomenology.

Contribution

It demonstrates that flavor mixings can produce light sfermions in split supersymmetry, reducing the number of scalars detectable at colliders compared to full supersymmetric models.

Findings

Light sfermions emerge due to flavor mixings.

Flavor mixings impact rare processes and electric dipole moments.

Fewer scalars need to be discovered at colliders.

Abstract

We discuss consequences of flavor mixings in the scalar fermion sector of supersymmetric models endowed with ultra heavy scalars. We find that, under extreme fine-tunings different than but similar in size to that needed to obtain a light Higgs doublet, intergenerational mixings generically lead to light sfermion states which facilitate a number of phenomena ranging from rare processes to electric dipole moments. The number of scalar fermions to be discovered by collider searches is fewer than those in a complete supersymmetric model.