Test of Anomaly Mediation at the LHC

TL;DR

This paper explores the LHC phenomenology of anomaly-mediated supersymmetry breaking models, highlighting the importance of detecting charged Wino tracks to test the model's predictions.

Contribution

It demonstrates that charged Wino tracks can be used to test anomaly mediation at the LHC, especially if gluinos are lighter than 1 TeV.

Findings

Charged Winos can travel about 10 cm before decaying.

Detection of charged Wino tracks is crucial for testing anomaly mediation.

Charged Wino lifetime measurement can confirm the model.

Abstract

In the anomaly-mediated supersymmetry breaking model with the assumption of the generic form of Kahler potential, gauginos are the only kinematically accessible superparticles to the LHC. We consider the LHC phenomenology of such a model assuming that the gluino is lighter than 1 TeV. We show that a significant number of charged Winos, which may travel O(10 cm) before the decay, are produced from the gluino production processes. Thus, in this class of model, it will be very important to search for short charged tracks using inner detectors. We also show that, if a large number of the charged Wino tracks are identified, the lifetime of the charged Wino can be measured, which provides us a test of anomaly mediation.