Antisplit Supersymmetry

TL;DR

This paper investigates a class of supersymmetry models where gauginos are very heavy and undetectable at colliders, while scalar particles are compressed, leading to distinctive collider signatures such as multi-particle decays and displaced vertices.

Contribution

It introduces and analyzes models within General Gauge Mediated Supersymmetry where gauginos are heavy, exploring their phenomenology and collider signatures.

Findings

Gauginos can be much heavier than scalars in these models.

Distinct collider signatures include multi-particle decay chains and displaced vertices.

Possible LSP/NLSP candidates include Higgsino, stau, and sneutrino.

Abstract

I explore the phenomenology of Supersymmetry models in which the gauginos are much heavier then that scalar particles of the MSSM. In these models, the gauginos are inaccessible to colliders while the scalar spectrum is compressed. I give several examples of models which exhibit this phenomenology built in the class of General Gauge Mediated Models. I explore possible LSP and NLSP candidates in these scenarios including Higgsino, stau, and sneutrino candidates. Collider signatures for these models include multi-particle decay chains, many taus in the final state, and possible displaced vertices with semi-long lived sparticles. I enumerate the most likely collider smoking gun collider signatures for each general LSP/NLSP scenario.