A new approach for detecting compressed bino/wino at the LHC

Abstract

In some supersymmetric models like split supersymmetry or models with non-universal gaugino mass, bino (LSP) and winos (NLSP) may have rather small mass splitting in order to provide the correct dark matter relic density through bino/wino co-annihilation. Such a scenario with the compressed bino/wino is difficult to explore at the LHC. In this work we propose to probe this scenario from $pp\to j{\tilde{\chi }}_2^0{\tilde{\chi }}_1^{\pm }$ followed by ${\tilde{\chi }}_2^0\to \gamma {\tilde{\chi }}_1^0$ and ${\tilde{\chi }}_1^{\pm }\to W^{\ast }{\tilde{\chi }}_1^0\to {\ell }^{\pm }\nu {\tilde{\chi }}_1^0$ (this method is also applicable to the compressed bino/higgsino scenario). Through a detailed Monte Carlo simulation for both the signal and the backgrounds, we find that for a mass splitting $\Delta M\sim 5-15$ GeV between bino (LSP) and wino (NLSP), the 14 TeV LHC with luminosity of 500$f{b}^{-1}$ can probe the wino up to 150 GeV (the sensitivity can reach $5\sigma$ for $\Delta M=5$ GeV and $2\sigma$ for $\Delta M=15$ GeV). We also investigate the dark matter detection sensitivities for this scenario and find that the planned XENON-1T(2017) cannot fully cover the parameter space with wino below 150 GeV allowed by relic density and the LUX limits.

arXiv comment14 pages, 4 figures

References in corpus (67)

• 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
• 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
• Planck 2013 results. XVI. Cosmological parameters
• The anti-k_t jet clustering algorithm
• MadGraph 5 : Going Beyond
• First results from the LUX dark matter experiment at the Sanford Underground Research Facility
• FeynHiggs: a program for the calculation of the masses of the neutral CP-even Higgs bosons in the MSSM
• Towards High-Precision Predictions for the MSSM Higgs Sector
• The Masses of the Neutral CP-even Higgs Bosons in the MSSM: Accurate Analysis at the Two-Loop Level
• HiggsBounds: Confronting Arbitrary Higgs Sectors with Exclusion Bounds from LEP and the Tevatron
• Neutralino Relic Density including Coannihilations
• The Higgs Boson Masses and Mixings of the Complex MSSM in the Feynman-Diagrammatic Approach
• HiggsBounds 2.0.0: Confronting Neutral and Charged Higgs Sector Predictions with Exclusion Bounds from LEP and the Tevatron
• Natural SUSY Endures
• The Well-Tempered Neutralino
• SuperIso v3.0: A program for calculating flavor physics observables in 2HDM and supersymmetry
• A SM-like Higgs near 125 GeV in low energy SUSY: a comparative study for MSSM and NMSSM
• Indirect search for dark matter with micrOMEGAs2.4
• SuperIso: A program for calculating the isospin asymmetry of B -> K* gamma in the MSSM
• Searches for electroweak production of charginos, neutralinos, and sleptons decaying to leptons and W, Z, and Higgs bosons in pp collisions at 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
• Prospects and Blind Spots for Neutralino Dark Matter
• Stealth Supersymmetry
• A new approach to multi-jet calculations in hadron collisions
• Hunting Quasi-Degenerate Higgsinos
• Compressed electroweakino spectra at the LHC
• Probing Light Higgsinos in Natural SUSY from Monojet Signals at the LHC
• Blind Spots for neutralino Dark Matter in the MSSM with an intermediate m_A
• Measurements of Wgamma and Zgamma production in pp collisions at sqrt{s}= 7 TeV with the ATLAS detector at the LHC
• Exploring the BWCA (Bino-Wino Co-Annihilation) Scenario for Neutralino Dark Matter
• Nearly Degenerate Gauginos and Dark Matter at the LHC
• Light Neutralino Dark Matter: Direct/Indirect Detection and Collider Searches
• Supersymmetry, Naturalness, and Light Higgsinos
• Light Stop Searches at the LHC with Monojet Events
• Monojets and mono-photons from light higgsino pair production at LHC14
• Dark matter and Higgs bosons in the MSSM
• Probing natural SUSY from stop pair production at the LHC
• Electroweakinos in the Light of the Higgs Boson
• Current experimental bounds on stop mass in natural SUSY
• Closing the stop gap
• NMSSM with a singlino LSP: possible challenges for searches for supersymmetry at the LHC
• Cornering electroweakinos at the LHC
• Anomaly of Zbb coupling revisited in MSSM and NMSSM
• Physics at a Higgsino Factory
• The Electroweak Sector of the pMSSM in the Light of LHC - 8 TeV and Other Data
• A light SUSY dark matter after CDMS-II, LUX and LHC Higgs data
• Supersymmetric Scenarios with Dominant Radiative Neutralino Decay
• Stop on Top
• Electroweakino constraints from LHC data
• Non-universal gaugino masses and semi-natural supersymmetry in view of the Higgs boson discovery
• Higgs signal in Chargino-Neutralino production at the LHC
• Detecting light stop pairs in coannihilation scenarios at the LHC
• Catching sparks from well-forged neutralinos
• Degenerate gaugino mass region and mono-boson collider signatures
• Complementarity of WIMP Sensitivity with direct SUSY, Monojet and Dark Matter Searches in the MSSM
• The Higgsino-Singlino World at the Large Hadron Collider
• Implications of an axino LSP for naturalness
• Testing the higgsino-singlino sector of the NMSSM with trileptons at the LHC
• Magic Messengers in Gauge Mediation and signal for 125 GeV boosted Higgs boson
• Higgs decay to goldstini and its observability at the LHC
• Split Supersymmetry Under GUT and Current Dark Matter Constraints
• A simple technique for combining simplified models and its application to direct stop production
• Pseudo-goldstino and electroweak gauginos at the LHC
• Radiative Neutralino Decay in Split Supersymmetry

Cited by in corpus (41)

• Long-Lived Particles at the Energy Frontier: The MATHUSLA Physics Case
• Exploring new models in all detail with SARAH
• Discovering Inelastic Thermal-Relic Dark Matter at Colliders
• Towards the Final Word on Neutralino Dark Matter
• Closing the window for compressed Dark Sectors with disappearing charged tracks
• Accessing the core of naturalness, nearly degenerate higgsinos, at the LHC
• The Relic Neutralino Surface at a 100 TeV collider
• Muon $g-2$ and Dark Matter in the MSSM
• Reduced LHC constraints for higgsino-like heavier electroweakinos
• How light a higgsino or a wino dark matter can become in a compressed scenario of MSSM
• Testing electroweak SUSY for muon $g-2$ and dark matter at the LHC and beyond
• Constraining the minimal dark matter fiveplet with LHC searches
• Probing the MSSM explanation of the muon g-2 anomaly in dark matter experiments and at a 100 TeV $pp$ collider
• Electroweakino constraints from LHC data
• Closing up a light stop window in natural SUSY at LHC
• Probing Bino-Wino Coannihilation at the LHC
• Probing bino-wino coannihilation dark matter under the neutrino floor at the LHC
• Revisiting the Exclusion Limits from Direct Chargino-Neutralino Production at the LHC
• Searching for Singlino-Higgsino Dark Matter in the NMSSM
• 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
• Illuminating New Electroweak States at Hadron Colliders
• MT2 to the Rescue -- Searching for Sleptons in Compressed Spectra at the LHC
• Coscattering in next-to-minimal dark matter and split supersymmetry
• Leptonic mono-top from single stop production at LHC
• Pseudo-goldstino and electroweakinos via VBF processes at LHC
• New Physics Search at the CEPC: a General Perspective
• On the coverage of neutralino dark matter in coannihilations at the upgraded LHC
• Dark Matter from the Supersymmetric Custodial Triplet Model
• Vacuum stability in stau-neutralino coannihilation in MSSM
• The past, present and future of the heavier electroweakinos in the light of LHC and other data
• Charting generalized supersoft supersymmetry
• Chasing New Physics in Stacks of Soft Tracks
• Search for the SUSY Electroweak Sector at $ep$ Colliders
• Revealing the jet substructure in a compressed spectrum
• Extending the Reach of Compressed Gluinos at the LHC
• Limiting SUSY compressed spectra scenarios
• SUSY effects in Higgs productions at high energy $e^{+}{e}^{-}$ colliders
• Higgsino Dark Matter in an economical Scherk-Schwarz setup
• Renormalization Effects on Electric Dipole Moments in Electroweakly Interacting Massive Particle Models
• Mono-b events from single stop production at the HL-LHC and HE-LHC