Searching for Lepton Flavor Violation at a Future High Energy Electron-Positron Collider

Abstract

We consider theories where lepton flavor is violated, in particular concentrating on the four fermion operator consisting of three electrons and a tau. Strong constraints are available from existing searches for tau -> eee, requiring the scale of the contact interaction to be less than ~(9 TeV)^-2. We reexamine this type of physics, assuming that the particles responsible are heavy (with masses greater than ~TeV) such that a contact interaction description continues to be applicable at the energies for a future e+e- collider. We find that the process e+e- -> e tau can be a very sensitive probe of this kind of physics (even for very conservative assumptions about the detector performance), already improving upon the tau decay bounds to less than ~(11 TeV)^-2 at collider energy sqrt(s) 500 GeV, or reaching beyond ~(35 TeV)^-2 for sqrt(s) = 3 TeV. Even stronger bounds are possible at e-e- colliders in the same energy range.

arXiv comment5 pages

References in corpus (26)

• 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
• MadGraph 5 : Going Beyond
• Dimension-Six Terms in the Standard Model Lagrangian
• A complete analysis of FCNC and CP constraints in general SUSY extensions of the standard model
• Lepton-Flavor Violation via Right-Handed Neutrino Yukawa Couplings in Supersymmetric Standard Model
• Search for Lepton Flavor Violating Tau Decays into Three Leptons with 719 Million Produced Tau+Tau- Pairs
• First Look at the Physics Case of TLEP
• Lepton-Flavor Violation in the Supersymmetric Standard Model with Seesaw-Induced Neutrino Masses
• Solar and Atmospheric Neutrino Oscillations and Lepton Flavor Violation in Supersymmetric Models with Right-handed Neutrinos
• Lepton Flavor Violation in the Standard Model with general Dimension-Six Operators
• Lepton Flavour Violation from SUSY--GUTs: Where do we stand for MEG, PRISM/PRIME and a Super Flavour factory
• Generalized Fierz identities
• Massive Neutrinos and Flavour Violation
• Measuring Higgs Couplings at a Linear Collider
• Lepton-Flavor Violation in the Left-handed Slepton Production at Future Lepton Colliders
• The SUSY seesaw model and lepton-flavor violation at a future electron-positron linear collider
• A new idea to search for charged lepton flavor violation using a muonic atom
• Search for Lepton Flavour Violation in e+e- Collisions at sqrt(s) = 189 - 209 GeV
• Measuring Slepton Masses and Mixings at the LHC
• Measuring the W-t-b Interaction at the ILC
• Lepton flavour violation: physics potential of a Linear Collider
• Lepton flavour violation in e^{\pm}e^{-}\to \ell^{\pm}e^{-} (\ell = μ,τ) induced by R-conserving supersymmetry
• Lepton flavour violating processes at the International Linear Collider
• Search for the reactions e+e- -> mu+ tau- and e+e- -> e+ tau-
• Three-Body Decays of Sleptons with General Flavor Violation and Left-Right Mixing

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• Exploring Optimal Sensitivity of Lepton Flavor Violating Effective Couplings at the $e^{+}{e}^{-}$ Colliders
• Charged Lepton Flavor Violation at the High-Energy Colliders: Neutrino Mass Relevant Particles
• Lepton flavor violating top quark FCNC processes at the $\mu$TRISTAN