Signals of sneutrino-antisneutrino mixing in an $e^{-}\gamma$ collider in anomaly-mediated supersymmetry breaking

Abstract

Sneutrino-antisneutrino mixing occurs in a supersymmetric model where neutrinos have nonzero Majorana masses. This can lead to the sneutrino decaying into a final state with a "wrong-sign charged lepton". Hence, in an $e^{-}\gamma$ collider, the signal of the associated production of an electron-sneutrino and the lighter chargino and their subsequent decays can be $e^- γ\to e^+ {\tilde τ}_1^- {\tilde τ}_1^- + \mpT$ where the ${\tilde{\tau }}_1$s are long-lived and can produce heavily ionizing charged tracks. This signal is free of any Standard Model background and the supersymmetric backgrounds are small. Such a signal can be experimentally observable under certain conditions which are possible to obtain in an anomaly-mediated supersymmetry breaking scenario. Information on a particular combination of the neutrino masses and mixing angles can also be extracted through the observation of this signal. Possible modifications in the signal event and the accompanying Standard Model background have been discussed when the ${\tilde{\tau }}_1$s decay promptly.

arXiv comment26 pages, 6 figures, RevTeX4. Discussion and references added. Typos corrected. To appear in Phys. Rev. D

References in corpus (77)

• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters
• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Preliminary Maps and Basic Results
• Out Of This World Supersymmetry Breaking
• Gaugino Mass without Singlets
• R-parity violating supersymmetry
• Cosmological parameter analysis including SDSS Ly-alpha forest and galaxy bias: constraints on the primordial spectrum of fluctuations, neutrino mass, and dark energy
• Precision Corrections in the Minimal Supersymmetric Standard Model
• The Top Quark Mass in Supersymmetric SO(10) Unification
• Two-Loop Renormalization Group Equations for Soft Supersymmetry-Breaking Couplings
• Electroweak Symmetry Breaking and Bottom-Top Yukawa Unification
• Search for neutrinoless double beta decay with enriched 76Ge in Gran Sasso 1990-2003
• Evidence for Neutrinoless Double Beta Decay
• Higgs Boson Theory and Phenomenology
• Phenomenological consequences of supersymmetry with anomaly-induced masses
• Measurement of the Positive Muon Anomalous Magnetic Moment to 0.7 ppm
• Hadronic light-by-light corrections to the muon g-2: the pion-pole contribution
• The Supersymmetric Particle Spectrum
• Bounds on R-parity Violating Couplings at the Weak Scale and at the GUT Scale
• Sparticle Masses from the Superconformal Anomaly
• Hadronic light-by-light scattering contribution to the muon g-2: an effective field theory approach
• Phase Transitions and Vacuum Tunneling Into Charge and Color Breaking Minima in the MSSM
• Discovering Supersymmetry at the Tevatron in Wino LSP Scenarios
• Sneutrino Mixing Phenomena
• Supersymmetry and the Anomalous Anomalous Magnetic Moment of the Muon
• Comment on the Pion Pole Part of the Light-by-Light Contribution to the Muon $g-2$
• Neutrino masses and the dark energy equation of state - relaxing the cosmological neutrino mass bound
• TESLA Technical Design Report, Part VI, Chapter 1: The Photon Collider at TESLA
• Supernatural Supersymmetry: Phenomenological Implications of Anomaly-Mediated Supersymmetry Breaking
• Phenomenological constraints on broken R parity symmetry in supersymmetry models
• Generic and Chiral Extensions of the Supersymmetric Standard Model
• Pion pole contribution to hadronic light-by-light scattering and muon anomalous magnetic moment
• Heavy Thresholds, Slepton Masses and the $\mu$ Term in Anomaly Mediated Supersymmetry Breaking
• B-L-violating Masses in Softly Broken Supersymmetry
• Observables sensitive to absolute neutrino masses: Constraints and correlations from world neutrino data
• Impact of Muon Anomalous Magnetic Moment on Supersymmetric Models
• Data Acquisition and Analysis of the 76Ge Double Beta Experiment in Gran Sasso 1990-2003
• Upper Limits on Sparticle Masses from g-2 and the Possibility for Discovery of Supersymmetry at Colliders and in Dark Matter Searches
• Probing Lepton Flavor Violation at Future Colliders
• Realistic Anomaly-mediated Supersymmetry Breaking
• Hadronic Light-by-Light Contribution to Muon g-2 in Chiral Perturbation Theory
• (S)neutrino properties in R-parity violating supersymmetry: I. CP-conserving Phenomena
• Current cosmological bounds on neutrino masses and relativistic relics
• Fayet-Iliopoulos D-terms and anomaly mediated supersymmetry breaking
• Bi-Maximal Neutrino Mixing in the MSSM with a Single Right-Handed Neutrino
• Phenomenology of deflected anomaly-mediation
• Viable Ultraviolet-Insensitive Supersymmetry Breaking
• Discovering anomaly-mediated supersymmetry at the LHC
• Constraining Anomaly Mediated Supersymmetry Breaking Framework via Ongoing Muon g-2 Experiment at Brookhaven
• Vacuum decay along supersymmetric flat directions
• Reach of the CERN LHC for the Minimal Anomaly-Mediated SUSY Breaking Model
• Probing the messenger of supersymmetry breaking by the muon anomalous magnetic moment
• RG-invariant Sum Rule in a Generalization of Anomaly Mediated SUSY Breaking Models
• Basis-independent analysis of the sneutrino sector in R-parity violating supersymmetry
• Invisible charginos and neutralinos from gauge boson fusion : a way to explore anomaly mediation ?
• Heavy Majorana Neutrino Production at e- gamma Colliders
• The GUT Scale and Superpartner Masses from Anomaly Mediated Supersymmetry Breaking
• R-parity violation and CP-violating and CP-conserving spin asymmetries in l^+ l^- -> sneutrino -> tau^+ tau^-: probing sneutrino mixing at LEP2, NLC and mu^+mu^- colliders
• Linear Collider Signal of a Wino LSP in Anomaly Mediated Scenarios
• Higgs Sector in Anomaly-Mediated Supersymmetry Breaking Scenario
• New Bounds on Slepton and Wino Masses in Anomaly Mediated Supersymmetry Breaking Models
• R-parity violation, sneutrino mixing phenomena and CP-violation in p \bar p -> sneutrino -> l^+ l^- + X
• g-2 of the muon in SUSY Models with Gauge Multiplets in the Bulk of Extra-Dimensions
• Sneutrino-Antisneutrino Mixing and Neutrino Mass in Anomaly--mediated Supersymmetry Breaking Scenario
• Characteristic slepton signal in anomaly mediated SUSY breaking models via gauge boson fusion at the LHC
• Characteristic Wino Signals in a Linear Collider from Anomaly Mediated Supersymmetry Breaking
• Sfermion Pair Production in Polarized and Unpolarized $\gamma \gamma$ Collisions
• Sparticle Production in Electron-Photon Collisions
• Vacuum stability bounds in Anomaly and Gaugino Mediated SUSY breaking models
• CP Violation, Sneutrino Oscillation and Neutrino Masses in R-parity Violating Supersymmetric Standard Model
• Production of Heavy Selectrons in Electron-Photon Collisions
• Testing the AMSB Model via $e^{+}{e}^{-}\to {\tilde{\chi }}^{+}{\tilde{\chi }}^{-}\gamma$}
• Neutrino Physics from Charged Higgs and Slepton Associated Production in AMSB
• Signals of anomaly mediated supersymmetry breaking in an e^- gamma collider
• Sneutrino-induced like sign dilepton signal with conserved R-parity
• Radiative production of invisible charginos in photon photon collision
• Anomaly mediated supersymmetry breaking and its test in linear colliders

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• Neutrinos and Collider Physics
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• Right-handed sneutrino-antisneutrino oscillations in a TeV scale Supersymmetric B-L model
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• Neutrino Signals from Solar Neutralino Annihilations in Anomaly Mediated Supersymmetry Breaking Model
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• One-loop contribution to the neutrino mass matrix in NMSSM with right-handed neutrinos and tri-bimaximal mixing
• Ultrarelativistic sneutrinos at the LHC and sneutrino-antisneutrino oscillation
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