Constraints on R-parity violating couplings from LEP/SLD hadronic observables

Abstract

We analyze the one loop corrections to hadronic Z decays in an R-parity violating extension to the Minimal Supersymmetric Standard Model (MSSM). Performing a global fit to all the hadronic observables at the Z-peak, we obtain stringent constraints on the R-violating couplings constants lambda' and lambda''. As a result of the strong constraints from the b asymmetry parameters A_b and A_FB(b), we find that the couplings lambda'{i31}, lambda'{i32}, and lambda''{321} are ruled out at the 1 sigma level, and that lambda'{i33} and lambda''{33i} are ruled out at the 2 sigma level. We also obtain Bayesian confidence limits for the R-violating couplings.

arXiv comment30 pages, 19 postscript figures, REVTeX, new section 8 on Bayesian confidence limits added

References in corpus (12)

• Evidence for oscillation of atmospheric neutrinos
• Constraints on neutrino oscillation parameters from the measurement of day-night solar neutrino fluxes at Super-Kamiokande
• Measurement of the solar neutrino energy spectrum using neutrino-electron scattering
• Bounds on R-parity Violating Couplings at the Weak Scale and at the GUT Scale
• Analytic approach to the complete set of QED corrections to fermion pair production in e+e- annihilation
• W- and Z-Boson Interactions in Supersymmetric Models with Explicit R-Parity Violation
• New LEP bounds on $B$-violating scalar couplings: R-parity violating supersymmetry or diquarks
• QED corrections with partial angular integration to fermion pair production in e+e- - annihilation
• A wide scalar neutrino resonance and b\bar{b} production at LEP
• Constraints on Topcolor Assisted Technicolor Models from Vertex Corrections
• On the invisible decays of the Upsilon and J/Psi resonances
• Measurement of the Branching Fractions and Forward-Backward Asymmetries of the Z^0 into Light Quarks

Cited by in corpus (23)

• R-parity violating supersymmetry
• Phenomenological constraints on broken R parity symmetry in supersymmetry models
• Flavourful Production at Hadron Colliders
• Bounds on R-parity violating supersymmetric couplings from leptonic and semi-leptonic meson decays
• The NuTeV Anomaly, Neutrino Mixing, and a Heavy Higgs Boson
• R-parity violating effects in top quark FCNC productions at LHC
• Direct probes of R-parity-violating supersymmetric couplings via single-top-squark production
• Single-Coupling Bounds on R-parity violating Supersymmetry, an update
• Universal Torsion-Induced Interaction from Large Extra Dimensions
• Constraints on Gauged B-3L_tau and Related Theories
• Probing R-violating top quark decays at hadron colliders
• Testing radiative neutrino mass generation via R-parity violation at the Tevatron
• Constraints on R-Parity violating stop couplings from flavor physics
• Constraints on Two-Higgs Doublet Models at Large tan{beta} from W and Z decays
• Large CP violation in radiative B decays in supersymmetry without R-parity
• Constraints on New Physics from Long Baseline Neutrino Oscillation Experiments
• Lightest-neutralino decays in R_p-violating models with dominant lambda^{prime} and lambda couplings
• Infrared Quasi Fixed Point Structure in Extended Yukawa Sectors and Application to R-parity Violation
• Studying Exclusive Semi-leptonic $b\to (s,d)\nu \bar{\nu }$ Decays in the MSSM without R-parity
• Constraining R-parity-violating couplings in $\tau$-processes at the LHC and in electroweak precision measurements
• Single superparticle production via $\gamma \gamma$ collision with explicit R-parity violation
• Running of Oscillation Parameters in Matter with Flavor-Diagonal Non-Standard Interactions of the Neutrino
• Supersymmetry and Electroweak Leptonic Observables