First interpretation of 13 TeV supersymmetry searches in the pMSSM

Abstract

The combined constraints from six early Run 2 ATLAS searches for supersymmetry are interpreted in the phenomenological minimal supersymmetric extension to the Standard Model (pMSSM). Each of the searches was based on proton-proton collision data recorded in 2015 at $\sqrt{s}=13$ TeV with 3.2 fb${}^{-1}$ of integrated luminosity. Sensitivity to squarks of the first two generations and gluinos are evaluated using fast detector simulation. Results are presented in the 19-parameter R-parity conserving pMSSM with the lightest supersymmetric particle (LSP) being the neutralino. Considering 181.8k points that survived Run 1 constraints, 15.7% are excluded at 95% confidence level. Of those satisfying these Run 2 constraints, 0.5% (1.0%) have sub-TeV gluinos (sub-500 GeV squarks), the lightest of which has a mass of 757 GeV (293 GeV) with a 689 GeV (217 GeV) LSP.

arXiv comment5 pages, 3 figures

References in corpus (35)

• PYTHIA 6.4 Physics and Manual
• PYTHIA 6.2 Physics and Manual
• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• DELPHES 3, A modular framework for fast simulation of a generic collider experiment
• Theories with Gauge-Mediated Supersymmetry Breaking
• MadAnalysis 5, a user-friendly framework for collider phenomenology
• Matching matrix elements and shower evolution for top-quark production in hadronic collisions
• Study of Constrained Minimal Supersymmetry
• Simplified Models for a First Characterization of New Physics at the LHC
• Squark and gluino production cross sections in pp collisions at $\sqrt{s}$ = 13, 14, 33 and 100 TeV
• Search for squarks and gluinos with the ATLAS detector in final states with jets and missing transverse momentum using $\sqrt{s}=8$ TeV proton--proton collision data
• Supersymmetry Without Prejudice
• Towards a public analysis database for LHC new physics searches using MadAnalysis 5
• Search for new phenomena in final states with an energetic jet and large missing transverse momentum in $pp$ collisions at $\sqrt{s}=13$ TeV using the ATLAS detector
• Search for charginos nearly mass-degenerate with the lightest neutralino based on a disappearing-track signature in pp collisions at sqrt(s) = 8 TeV with the ATLAS detector
• ATLAS Run 1 searches for direct pair production of third-generation squarks at the Large Hadron Collider
• Summary of the ATLAS experiment's sensitivity to supersymmetry after LHC Run 1 - interpreted in the phenomenological MSSM
• Search for supersymmetry at $\sqrt{s}=13$ TeV in final states with jets and two same-sign leptons or three leptons with the ATLAS detector
• Summary of the searches for squarks and gluinos using $\sqrt{s}$ = 8 TeV pp collisions with the ATLAS experiment at the LHC
• Search for the electroweak production of supersymmetric particles in $\sqrt{s}$=8 TeV $pp$ collisions with the ATLAS detector
• Search for squarks and gluinos in final states with jets and missing transverse momentum at $\sqrt{s}=$ 13 TeV with the ATLAS detector
• More Energy, More Searches, but the pMSSM Lives On
• Searches for supersymmetry using the MT2 variable in hadronic events produced in pp collisions at 8 TeV
• Searches for third-generation squark production in fully hadronic final states in proton-proton collisions at sqrt(s) = 8 TeV
• Search for new physics in same-sign dilepton events in proton-proton collisions at sqrt(s) = 13 TeV
• The BSM-AI project: SUSY-AI - Generalizing LHC limits on Supersymmetry with Machine Learning
• Search for pair production of gluinos decaying via stop and sbottom in events with $b$-jets and large missing transverse momentum in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Lessons and Prospects from the pMSSM after LHC Run I: Neutralino LSP
• Measurement of event shapes at large momentum transfer with the ATLAS detector in pp collisions at sqrt(s) = 7 TeV
• Search for supersymmetry in the multijet and missing transverse momentum final state in pp collisions at 13 TeV
• New approach to identifying boosted hadronically-decaying particle using jet substructure in its center-of-mass frame
• Search for gluinos in events with an isolated lepton, jets and missing transverse momentum at $\sqrt{s}$ = 13 TeV with the ATLAS detector
• Search for new physics with the MT2 variable in all-jets final states produced in pp collisions at sqrt(s) = 13 TeV
• Search for supersymmetry in pp collisions at sqrt(s) = 13 TeV in the single-lepton final state using the sum of masses of large-radius jets
• Search for new phenomena in final states with large jet multiplicities and missing transverse momentum with ATLAS using $\sqrt{s}=13$ TeV proton--proton collisions

Cited by in corpus (7)

• A global fit of the MSSM with GAMBIT
• The BSM-AI project: SUSY-AI - Generalizing LHC limits on Supersymmetry with Machine Learning
• Prompt Signals and Displaced Vertices in Sparticle Searches for Next-to-Minimal Gauge Mediated Supersymmetric Models
• Phenomenological MSSM in light of new 13 TeV LHC data
• Analysing parameter space correlations of recent 13 TeV gluino and squark searches in the pMSSM
• Leptonic mono-top from single stop production at LHC
• Characterizing simplified models for heavy Higgs decays to supersymmetric particles