Soft Probes of SU(5) Unification

TL;DR

This paper investigates the sparticle and Higgs spectra in an SU(5) inspired extension of the CMSSM, proposing a new parameter scheme that predicts distinctive signatures testable at the LHC, with implications for dark matter.

Contribution

It introduces a novel soft parameter scheme in SU(5) inspired models, leading to distinctive sparticle spectra and testable predictions at the LHC.

Findings

Characteristic sparticle spectra for m_{\bar 5} << m_{10}

Benchmark points with neutralino dark matter consistent with WMAP

Potential LHC signatures of the proposed model

Abstract

We explore the sparticle and Higgs spectroscopy of an SU(5) inspired extension of the constrained minimal supersymmetric standard model (CMSSM). The universal soft parameter m_0 is replaced by m_{\bar 5} and m_{10}, where m_{\bar 5} and m_{10} denote universal soft scalar masses associated with fields in the five and ten dimensional representations of SU(5). The special case m_{\bar 5} << m_{10} yields a rather characteristic sparticle spectroscopy which can be tested at the LHC. We highlight a few benchmark points in which the lightest neutralino saturates the WMAP bound on cold dark matter abundance.