Long-lived bino and wino in supersymmetry with heavy scalars and higgsinos

Abstract

We point out that there is a parameter region in supersymmetry with heavy scalars and higgsinos, in which the heavier of bino and wino becomes long-lived as a consequence of the heavy higgsinos. In this region these electroweak gaugino sectors are secluded from each other with very small mixings that are inversely proportional to the higgsino mass. We revisit the bino and bino decays and provide simple formulae for the partial decay rates and the lifetimes in the limit of heavy higgsinos. We discuss the collider signatures of the long-lived binos and winos in this scenario.

23 pages, 9 figures, text clarified, additional formulas, comparison with SDecay; to appear in JHEP

References in corpus (28)

• 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
• Combined Measurement of the Higgs Boson Mass in $pp$ Collisions at $\sqrt{s}=7$ and 8 TeV with the ATLAS and CMS Experiments
• Precise determination of the mass of the Higgs boson and tests of compatibility of its couplings with the standard model predictions using proton collisions at 7 and 8 TeV
• Description and performance of track and primary-vertex reconstruction with the CMS tracker
• Cosmology and Astrophysics of Minimal Dark Matter
• Non-perturbative Effect on Thermal Relic Abundance of Dark Matter
• Neutralino Dark Matter at 14 and 100 TeV
• Possible Signals of Wino LSP at the Large Hadron Collider
• Higgs Mass and Unnatural Supersymmetry
• Search for massive, long-lived particles using multitrack displaced vertices or displaced lepton pairs in pp collisions at $\sqrt{s}$ = 8 TeV 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
• Search for long-lived neutral particles decaying to quark-antiquark pairs in proton-proton collisions at sqrt(s) = 8 TeV
• Search for long-lived particles that decay into final states containing two electrons or two muons in proton-proton collisions at sqrt(s) = 8 TeV
• Search for disappearing tracks in proton-proton collisions at sqrt(s) = 8 TeV
• Search for long-lived, weakly interacting particles that decay to displaced hadronic jets in proton-proton collisions at $\sqrt{s}=8$ TeV with the ATLAS detector
• Search for pair-produced long-lived neutral particles decaying in the ATLAS hadronic calorimeter in $pp$ collisions at $\sqrt{s}$ = 8 TeV
• Uncovering Natural Supersymmetry via the interplay between the LHC and Direct Dark Matter Detection
• The pMSSM10 after LHC Run 1
• Accessing the core of naturalness, nearly degenerate higgsinos, at the LHC
• Search for metastable heavy charged particles with large ionization energy loss in pp collisions at $\sqrt{s}=13$ TeV using the ATLAS experiment
• Search for decays of stopped long-lived particles produced in proton-proton collisions at sqrt(s) = 8 TeV
• Electroweakino constraints from LHC data
• Search for metastable heavy charged particles with large ionisation energy loss in $pp$ collisions at $\sqrt{s}$ = 8 TeV using the ATLAS experiment
• Hunting electroweakinos at future hadron colliders and direct detection experiments
• Catching sparks from well-forged neutralinos
• Degenerate gaugino mass region and mono-boson collider signatures
• Prospects for observing charginos and neutralinos at a 100 TeV proton-proton collider

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• Data-driven Model-independent Searches for Long-lived Particles at the LHC
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• Type III Seesaw for Neutrino Masses in $U(1{)}_{B-L}$ Model with Multi-component Dark Matter
• Recasting LHC searches for long-lived particles with MadAnalysis 5
• Long live the Higgs portal!
• Low-Scale D-term Inflation and the Relaxion
• Likelihood Analysis of Supersymmetric SU(5) GUTs
• A Minimal SU(5) SuperGUT in Pure Gravity Mediation
• Coscattering in next-to-minimal dark matter and split supersymmetry
• Determining the lifetime of long-lived particles at the HL-LHC
• Well-tempered n-plet dark matter
• Next-to-minimal dark matter at the LHC
• Searching for Metastable Particles with Sub-Millimeter Displaced Vertices at Hadron Colliders
• LHC constraints on electroweakino dark matter revisited
• Low-scale Gauge Mediation after LHC Run 2
• Probing gaugino coannihilation with displaced vertex searches