Constraints on non-universal gaugino mass scenario using the latest LHC data

Abstract

We investigate exclusion limits on the the non-universal gaugino mass scenario in the Minimal Supersymmetric Standard Model (MSSM), according the the latest results of the super-particle search at the LHC8 and the LHC13. In this scenario, suitable ratios of wino to gluino mass can realize the observed value of the Higgs boson mass, while keeping a small $\mu$ parameter. Such a small $\mu$ parameter corresponds to the mass of higgsino, so that lightest neutralino and chargino are higgsino-like and their masses are almost degenerate. Besides, we find that the right-handed top squark tends to be lighter than other sfermions and then the top squark search, where the top squark decays to a quark and higgsino, is relevant to our model. In our analysis, the exclusion limits are derived using the data of the top squark searches in the $bb+E_T^{\mathrm{miss}}$ and $tb+E_T^{\mathrm{miss}}$ channels. Furthermore, the exclusion limit on gluino mass, which is crucial to our scenario, is investigated as well. The analysis of the gluino is based on the data of the analysis with large missing energy and at least three b-tagged jets at the ATLAS experiment.

14 pages, 4 figures, 3 Tables

References in corpus (15)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• PYTHIA 6.4 Physics and Manual
• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• Four-dimensional String Compactifications with D-Branes, Orientifolds and Fluxes
• Search for top squark pair production in final states with one isolated lepton, jets, and missing transverse momentum in $\sqrt{s}=$ 8 TeV pp collisions with the ATLAS detector
• Supersymmetry production cross sections in pp collisions at sqrt{s} = 7 TeV
• Monojet plus soft dilepton signal from light higgsino pair production at LHC14
• Search for disappearing tracks in proton-proton collisions at sqrt(s) = 8 TeV
• Relaxed fine-tuning in models with non-universal gaugino masses
• Search for strong production of supersymmetric particles in final states with missing transverse momentum and at least three b-jets at $\sqrt{s}=$ 8 TeV proton-proton collisions with the ATLAS detector
• Search for supersymmetry using razor variables in events with b-tagged jets in pp collisions at sqrt(s) = 8 TeV
• TeV Scale Mirage Mediation and Natural Little SUSY Hierarchy
• Naturalness of the Non-Universal MSSM in the light of the recent Higgs results
• The 126 GeV Higgs boson mass and naturalness in (deflected) mirage mediation

Cited by in corpus (11)

• Solving the muon g-2 anomaly in CMSSM extension with non-universal gaugino masses
• A top-squark hunter's guide
• Tagging a mono-top signature in Natural SUSY
• Study of dark matter physics in non-universal gaugino mass scenario
• SUSY effects in $R_b$: revisited under current experimental constraints
• Understanding the muon anomalous magnetic moment in light of a flavor symmetry-based Minimal Supersymmetric Standard Model
• Yukawa Unification with light supersymmetric particles consistent with LHC constraints
• Non-Universal Gaugino Masses in the NMSSM
• SU(5) with Non-Universal Gaugino Masses
• SUSY Dark Matter in Universal and Nonuniversal Gaugino Mass Models
• Revisiting CMSSM with Non-Universal Gaugino Masses under Current Constraints