Constraints on Supersymmetry from LHC data on SUSY searches and Higgs bosons combined with cosmology and direct dark matter searches

TL;DR

This paper combines LHC SUSY search data with cosmological and dark matter constraints to set limits on supersymmetric particles, excluding gluinos below 1270 GeV and dark matter candidates below 220 GeV in the CMSSM framework.

Contribution

It provides the first comprehensive combined analysis of collider, cosmological, and dark matter data to constrain supersymmetry parameters.

Findings

Gluinos below 1270 GeV are excluded for certain parameters.

Dark matter candidates below 220 GeV are excluded in the model.

Preferred SUSY regions are above the current exclusion limits when a 125 GeV Higgs is assumed.

Abstract

The ATLAS and CMS experiments did not find evidence for Supersymmetry using close to 5/fb of published LHC data at a center-of-mass energy of 7 TeV. We combine these LHC data with data on B_s -> mu mu (LHCb experiment), the relic density (WMAP and other cosmological data) and upper limits on the dark matter scattering cross sections on nuclei (XENON100 data). The excluded regions in the constrained Minimal Supersymmetric SM (CMSSM) lead to gluinos excluded below 1270 GeV and dark matter candidates below 220 GeV for values of the scalar masses (m_0) below 1500 GeV. For large m_0 values the limits of the gluinos and the dark matter candidate are reduced to 970 GeV and 130 GeV, respectively. If a Higgs mass of 125 GeV is imposed in the fit, the preferred SUSY region is above this excluded region, but the size of the preferred region is strongly dependent on the assumed theoretical error.