LHC Benchmarks from Flavored Gauge Mediation

TL;DR

This paper provides benchmark scenarios for LHC searches based on flavored gauge mediation models, highlighting unique spectra, flavor mixing, and suppressed CP violation, aiding experimental strategies.

Contribution

It introduces specific benchmark points with flavor-dependent squark masses and discusses their implications for LHC searches and flavor physics in flavored gauge mediation.

Findings

Single squark can be much lighter than others, aiding flavor tagging.

Large stop-scharm mixing is possible in some models.

A-terms are large but have suppressed EDM contributions.

Abstract

We present benchmark points for LHC searches from flavored gauge mediation models, in which messenger-matter couplings give flavor-dependent squark masses. Our examples include spectra in which a single squark - stop, scharm, or sup - is much lighter than all other colored superpartners, motivating improved quark flavor tagging at the LHC. Many examples feature flavor mixing; in particular, large stop-scharm mixing is possible. The correct Higgs mass is obtained in some examples by virtue of the large stop A-term. We also revisit the general flavor and CP structure of the models. Even though the A-terms can be substantial, their contributions to EDM's are very suppressed, because of the particular dependence of the A-terms on the messenger coupling. This holds regardless of the messenger-coupling texture. More generally, the special structure of the soft terms often leads to stronger suppression of flavor- and CP-violating processes, compared to naive estimates.