Search for direct pair production of a chargino and a neutralino decaying to the 125 GeV Higgs boson in $\sqrt{s}$ = 8 TeV pp collisions with the ATLAS detector

Abstract

A search is presented for the direct pair production of a chargino and a neutralino $pp\to {\tilde{\chi }}_1^{\pm }{\tilde{\chi }}_2^0$, where the chargino decays to the lightest neutralino and the $W$ boson, ${\tilde{\chi }}_1^{\pm }\to {\tilde{\chi }}_1^0(W^{\pm }\to {\ell }^{\pm }\nu )$, while the neutralino decays to the lightest neutralino and the 125 GeV Higgs boson, ${\tilde{\chi }}_2^0\to {\tilde{\chi }}_1^0(h\to bb/\gamma \gamma /{\ell }^{\pm }\nu qq)$. The final states considered for the search have large missing transverse momentum, an isolated electron or muon, and one of the following: either two jets identified as originating from bottom quarks, or two photons, or a second electron or muon with the same electric charge. The analysis is based on 20.3 fb${}^{-1}$ of $\sqrt{s}=8$ TeV proton-proton collision data delivered by the Large Hadron Collider and recorded with the ATLAS detector. Observations are consistent with the Standard Model expectations, and limits are set in the context of a simplified supersymmetric model.

arXiv comment19 pages plus cover page plus author list (34 pages total), 8 figures, 10 tables, submitted to EPJC, All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/SUSY-2013-23/

References in corpus (46)

• PYTHIA 6.4 Physics and Manual
• PYTHIA 6.2 Physics and Manual
• A Brief Introduction to PYTHIA 8.1
• Asymptotic formulae for likelihood-based tests of new physics
• New parton distributions for collider physics
• Event generation with SHERPA 1.1
• Herwig++ Physics and Manual
• ALPGEN, a generator for hard multiparton processes in hadronic collisions
• Matching NLO QCD computations and parton shower simulations
• The ATLAS Simulation Infrastructure
• The total top quark pair production cross-section at hadron colliders through O(alpha_S^4)
• MadGraph/MadEvent v4: The New Web Generation
• Top++: a program for the calculation of the top-pair cross-section at hadron colliders
• Tuning Monte Carlo Generators: The Perugia Tunes
• Two-loop soft anomalous dimensions for single top quark associated production with a W- or H-
• Percent level precision physics at the Tevatron: first genuine NNLO QCD corrections to q qbar -> t tbar + X
• Top-pair production at hadron colliders with next-to-next-to-leading logarithmic soft-gluon resummation
• NNLO corrections to top-pair production at hadron colliders: the all-fermionic scattering channels
• Next-to-next-to-leading-order collinear and soft gluon corrections for t-channel single top quark production
• NNLL resummation for s-channel single top quark production
• Improved luminosity determination in pp collisions at sqrt(s) = 7 TeV using the ATLAS detector at the LHC
• Measurements of Higgs boson production and couplings in diboson final states with the ATLAS detector at the LHC
• Jet energy measurement with the ATLAS detector in proton-proton collisions at sqrt(s) = 7 TeV
• Squark and Gluino Production at Hadron Colliders
• Simplified Models for a First Characterization of New Physics at the LHC
• Jet energy measurement and its systematic uncertainty in proton-proton collisions at $\sqrt{s}=7$ TeV with the ATLAS detector
• Search for direct production of charginos, neutralinos and sleptons in final states with two leptons and missing transverse momentum in pp collisions at sqrt(s) = 8 TeV with the ATLAS detector
• Performance of missing transverse momentum reconstruction in proton-proton collisions at 7 TeV with ATLAS
• Electron and photon energy calibration with the ATLAS detector using LHC Run 1 data
• Searches for supersymmetric particles in e+e- collisions up to 208 GeV and interpretation of the results within the MSSM
• Measurement of the muon reconstruction performance of the ATLAS detector using 2011 and 2012 LHC proton-proton collision data
• One-Loop Analysis of the Electroweak Breaking in Supersymmetric Models and the Fine-Tuning Problems
• Searches for electroweak production of charginos, neutralinos, and sleptons decaying to leptons and W, Z, and Higgs bosons in pp collisions at 8 TeV
• Precision predictions for electroweak superpartner production at hadron colliders with Resummino
• Measurement of the Higgs boson mass from the $H\to \gamma \gamma$ and $H\to Z{Z}^{\ast }\to 4\ell$ channels with the ATLAS detector using 25 fb${}^{-1}$ of $pp$ collision data
• Electron reconstruction and identification efficiency measurements with the ATLAS detector using the 2011 LHC proton-proton collision data
• Jet energy resolution in proton-proton collisions at sqrt(s) = 7 TeV recorded in 2010 with the ATLAS detector
• Gaugino production in proton-proton collisions at a center-of-mass energy of 8 TeV
• Search for direct production of charginos and neutralinos in events with three leptons and missing transverse momentum in sqrt(s) = 8TeV pp collisions with the ATLAS detector
• Supersymmetry production cross sections in pp collisions at sqrt{s} = 7 TeV
• 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
• Identification and energy calibration of hadronically decaying tau leptons with the ATLAS experiment in $pp$ collisions at $\sqrt{s}$=8 TeV
• Searches for electroweak neutralino and chargino production in channels with Higgs, Z, and W bosons in pp collisions at 8 TeV
• Search for the direct production of charginos, neutralinos and staus in final states with at least two hadronically decaying taus and missing transverse momentum in $pp$ collisions at $\sqrt{s}$ = 8 TeV with the ATLAS detector
• Search for associated production of charginos and neutralinos in the trilepton final state using 2.3 fb-1 of data
• Search for Supersymmetry in ppbar Collisions at sqrt(s)=1.96 TeV Using the Trilepton Signature for Chargino-Neutralino Production

Cited by in corpus (66)

• A facility to Search for Hidden Particles at the CERN SPS: the SHiP physics case
• CheckMATE 2: From the model to the limit
• Dark Matter through the Higgs portal
• Summary of the ATLAS experiment's sensitivity to supersymmetry after LHC Run 1 - interpreted in the phenomenological MSSM
• Combined search for electroweak production of charginos and neutralinos in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• SModelS v1.1 user manual
• Combined collider constraints on neutralinos and charginos
• Search for the electroweak production of supersymmetric particles in $\sqrt{s}$=8 TeV $pp$ collisions with the ATLAS detector
• Phenomenological Comparison of Models with Extended Higgs Sectors
• The BSM-AI project: SUSY-AI - Generalizing LHC limits on Supersymmetry with Machine Learning
• The Coannihilation Codex
• Search for doubly and singly charged Higgs bosons decaying into vector bosons in multi-lepton final states with the ATLAS detector using proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Status and prospects of light bino-higgsino dark matter in natural SUSY
• Reduced LHC constraints for higgsino-like heavier electroweakinos
• Unblinding the Dark Matter Blind Spots
• $Z$ boson mediated dark matter beyond the effective theory
• How light a higgsino or a wino dark matter can become in a compressed scenario of MSSM
• Showcasing HH production: Benchmarks for the (HL-)LHC
• Exploring the Higgs sector of the MRSSM with a light scalar
• Neutralinos and Sleptons at the LHC in Light of Muon $(g-2{)}_{\mu }$
• Search for higgsinos decaying to two Higgs bosons and missing transverse momentum in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Present Status and Future Tests of the Higgsino-Singlino Sector in the NMSSM
• NMSSM explanations of the Galactic center gamma ray excess and promising LHC searches
• Closing in on the chargino contribution to the muon g-2 in the MSSM: current LHC constraints
• GAMBIT and its Application in the Search for Physics Beyond the Standard Model
• Non-universal Gaugino mass models under the lamppost of muon (g-2)
• Study of MSSM heavy Higgs bosons decaying into charginos and neutralinos
• Search for supersymmetry with Higgs boson to diphoton decays using the razor variables at $\sqrt{s}=$ 13 TeV
• Revisiting the Exclusion Limits from Direct Chargino-Neutralino Production at the LHC
• SModelS v2.3: enabling global likelihood analyses
• Experimental Status of Supersymmetry after the LHC Run-I
• Search for Mono-Higgs Signals at the LHC in the B-L Supersymmetric Standard Model
• Radiative Neutrino Mass with $Z_3$ Dark matter: From Relic Density to LHC Signatures
• Searching for Singlino-Higgsino Dark Matter in the NMSSM
• Supersymmetry at a 28 TeV hadron collider: HE-LHC
• On the coverage of the pMSSM by simplified model results
• Diphoton Signal of light pseudoscalar in NMSSM at the LHC
• Search for higgsino pair production in pp collisions at sqrt(s) = 13 TeV in final states with large missing transverse momentum and two Higgs bosons decaying via H to bb-bar
• Impact of LHC data on muon $g-2$ solutions in vector-like extension of the Constrained MSSM
• Confronting the neutralino and chargino sector of the NMSSM to the multi-lepton searches at the LHC
• Combined search for electroweak production of winos, binos, higgsinos, and sleptons in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Singlino-dominated dark matter in $Z_3$-NMSSM
• Models with Extended Higgs Sectors at Future $e^{+}{e}^{-}$ Colliders
• Minimal Vectorlike Model in Supersymmetric Unification
• Probing the NMSSM via Higgs boson signatures from stop cascade decays at the LHC
• Search for supersymmetry using Higgs boson to diphoton decays at $\sqrt{s}=$ 13 TeV
• Current status of MSSM Higgs sector with LHC 13 TeV data
• Confronting SUSY models with LHC data via electroweakino production
• Naughty or Nice? The Role of the `N' in the Natural NMSSM for the LHC
• Search for supersymmetry in electroweak production with photons and large missing transverse energy in pp collisions at sqrt(s) = 8 TeV
• Searching for heavy Higgs in supersymmetric final states at the LHC
• Impact of Jet Veto Resummation on Slepton Searches
• Electroweakino pair production at the LHC: NLO SUSY-QCD corrections and parton-shower effects
• The case for 100 GeV bino dark matter: A dedicated LHC tri-lepton search
• Supersymmetry: Aspirations and Prospects
• The MSSM without Gluinos; an Effective Field Theory for the Stop Sector
• Charting generalized supersoft supersymmetry
• Probing the Electroweakino Sector of General Gauge Mediation at the LHC
• 750 GeV Diphotons from Supersymmetry with Dirac Gauginos
• Low-scale Gauge Mediation after LHC Run 2
• Precise predictions for electroweakino-pair production in association with a jet at the LHC
• Same-sign Higgsino Production at the CERN LHC: How Not to Hunt for Natural Supersymmetry
• Prospects of Gluino searches in multi-lepton channels in the light of ongoing LHC RUN-III
• Decay $\varphi \to Z\gamma \gamma$ ($\varphi =h,H,A$) in the minimal supersymmetric standard model
• Scherk-Schwarz orbifolds at the LHC
• Revisiting the gluino mass limits in the pMSSM in the light of the latest LHC data and Dark Matter constraints