Pure General Gauge Mediation for Early LHC Searches

TL;DR

This paper provides optimized benchmark points for Pure General Gauge Mediation models tailored for early LHC searches, highlighting regions with light gluinos and various NLSP scenarios to facilitate experimental discovery.

Contribution

It introduces specific benchmark points and detailed spectra for pure GGM models, aiding early LHC searches and exploring phenomenologically interesting parameter regions.

Findings

Light gluinos with m_g < 500 GeV are viable.

Multiple NLSP scenarios including bino-like, stau, and co-NLSP are identified.

Benchmark spectra and cross-sections are provided for experimental use.

Abstract

We present benchmark points for Pure General Gauge Mediation (GGM) models specifically optimised for early LHC searches. The pure GGM set-up is as defined in our previous paper arXiv:0910.2674: namely we adopt the minimal set-up in which B_mu is generated only through gauge interactions, and as a result tan beta is a prediction rather than an input. The only input parameters are messenger masses together with two independent scales which generate gaugino and scalar masses. The parameter space favoured by current experimental data includes an interesting region with light gluinos (m_g < 500 GeV and relatively heavy squarks) and a bino-like NLSP where early discovery is likely. We also find interesting regions of parameter space where the NLSP is a stau or stau/neutralino co-NLSP and the squark masses are relatively low. We present benchmark points which are typical for each of these three regions, and give the spectrum, branching ratios, and also the overall 2 -> 2 cross-sections. This data in SLHA format can be found at http://www.ippp.dur.ac.uk/~SUSY