Higgs and Supersymmetry

TL;DR

This paper updates global fits of supersymmetric models with potential Higgs mass measurements around 125 GeV, analyzing implications for particle masses and dark matter, and discusses the impact of including or excluding the g_mu-2 constraint.

Contribution

It provides a comprehensive analysis of how a Higgs mass near 125 GeV influences supersymmetric parameter spaces and related phenomenological predictions, updating previous fits with new potential measurements.

Findings

Likelihood contours favor certain SUSY parameter regions at 125 GeV

Predicted Higgs mass around 119-126 GeV depending on constraints

Updated predictions for gluino, squark, and dark matter cross sections

Abstract

Global frequentist fits to the CMSSM and NUHM1 using the MasterCode framework predicted m_h \simeq 119 GeV in fits incorporating the g_mu-2 constraint and \simeq 126 GeV without it. Recent results by ATLAS and CMS could be compatible with a Standard Model-like Higgs boson around m_h \simeq 125 GeV. We use the previous MasterCode analysis to calculate the likelihood for a measurement of any nominal Higgs mass within the range of 115 to 130 GeV. Assuming a Higgs mass measurement at m_h \simeq 125 GeV, we display updated global likelihood contours in the (m_0, m_{1/2}) and other parameter planes of the CMSSM and NUHM1, and present updated likelihood functions for m_gluino, m_squark, B to mu mu, and the spin-independent dark matter cross section \sigma^si. The implications of dropping g_mu-2 from the fits are also discussed. We furthermore comment on a hypothetical measurement of m_h \simeq 119 GeV.