Gauge-mediated supersymmetry breaking with generalized messenger sector at LHC

TL;DR

This paper explores generalized gauge-mediated supersymmetry breaking models with incomplete SU(5) multiplets, analyzing their unique LHC signatures and potential deviations in gaugino mass relations.

Contribution

It introduces a framework for GMSB models with non-complete SU(5) multiplets and examines their LHC signatures and gaugino mass deviations.

Findings

LHC signatures depend on the type of messenger fields

Potential to observe deviations from GUT gaugino mass relations

Analysis of specific messenger scenarios X + ar{X} and Q + ar{Q}

Abstract

We consider the generalized gauge mediated supersymmetry breaking (GMSB) models with the messenger fields which do not form the complete multiplets of SU(5) GUT symmetry. Such a situation may happen in the anomalous U(1) GUT scenario because the mass spectrum of the superheavy particle does not respect SU(5) GUT symmetry, although the success of the gauge coupling unification can be explained. In this paper, we assume that one pair of the messenger fields gives the dominant contribution, and the LHC signature for the two possible messengers, X + \bar{X} and Q + \bar{Q}, are examined. We investigate the possibility to measure the deviation from the usual GUT relation of the gaugino masses which is one of the most important features of these scenarios.