Supersymmetry with R-Parity Breaking: Contact Interactions and Resonance Formation in Leptonic Processes at LEP2

Abstract

In supersymmetric theories with R-parity breaking, trilinear couplings of two leptons to scalar sleptons are possible. In electron-positron collisions such interactions would manifest themselves through contact terms in Bhabha scattering and in annihilation to mu or tau pair Interpreting the high x, high Q2 DIS HERA events as charm squark production with squark masses of order 200 GeV, the formation of tau sneutrinos with a mass in the range close to the LEP2 energy or even in reach, is an exciting speculation which can be investigated in the coming LEP2 runs with energies close to 200 GeV.

13 pages, LaTex file with 3 figures, uses axodraw.sty (included). References updated / limits from rare B decays on Yukawa couplings updated, favoring tau-sneutrinos over mu-sneutrinos/ numerical results unchanged

References in corpus (4)

• Comparison of ZEUS Data with Standard Model Predictions for e^+ p -> e^+ X Scattering at High x and Q^2
• Observation of Events at Very High Q^2 in ep Collisions at HERA
• Constraints on the R-parity- and Lepton-Flavor-Violating Couplings from B0 Decats to Two Charged Leptons
• Four-jet Signal at LEP2 and Supersymmetry

Cited by in corpus (53)

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• Fermion pair production in e+e- collisions at 189-209 GeV and constraints on physics beyond the Standard Model
• SUSYGEN 2.2 - A Monte Carlo Event Generator for MSSM Sparticle Production at e+ e- Colliders
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• Constraints from Precision Electroweak Data on Leptoquarks and Bileptons
• Spin and model identification of Z' bosons at the LHC
• Spin identification of the Randall-Sundrum resonance in lepton-pair production at the LHC
• Transverse Polarization Signatures of Extra Dimensions at Linear Colliders
• Using Final State Pseudorapidities to Improve s-channel Resonance Observables at the LHC
• Broken R Parity Contributions to Flavor Changing Rates and CP Asymmetries in Fermion Pair Production at Leptonic Colliders
• QCD Corrections to Resonant Slepton Production in Hadron Colliders
• Distinguishing Indirect Signatures of New Physics at the NLC: Z' Versus R-Parity Violation
• 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
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• Discriminating graviton exchange effects from other new physics scenarios in e^+e^- collisions
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• Indirect Searches for $Z^{\prime }$-like Resonances at the LHC
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• Soft Gluon Resummation Effects in Single Slepton Production at Hadron Colliders
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• Identification of indirect new physics effects at e^+e^- colliders: the large extra dimensions case
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• Effects of lepton number violating interactions on $t\bar{t}$ production at NLC
• NNLO QCD corrections to the resonant sneutrino/slepton production at Hadron Colliders
• Sneutrino identification in dilepton events at the LHC
• Sneutrino Identification in Lepton Pair Production at ILC with Polarized Beams
• Sneutrino-Higgs mixing in WW and ZZ production in supersymmetry with R-parity violation
• TeV-Scale Stringy Signatures at the Electron-positron Collider
• Contact Interaction Searches at the Linear Collider: Energy, Luminosity and Positron Polarization Dependencies
• Impact on SUSY-Breaking Models of the $R$-Parity Violating Squark Interpretation of the HERA Anomaly
• Spin identification of heavy nonstandard bosons in dilepton and diphoton events at the LHC
• Prospects of Squark & Slepton searches at a Gamma Gamma Collider