Lepton flavour violation: physics potential of a Linear Collider

Abstract

We revisit the potential of a Linear Collider concerning the study of lepton flavour violation, in view of new LHC bounds and of the (very) recent developments in lepton physics. Working in the framework of a type I supersymmetric seesaw, we evaluate the prospects of observing seesaw-induced lepton flavour violating final states of the type e μ+ missing energy, arising from e+ e- and e- e- collisions. In both cases we address the potential background from standard model and supersymmetric charged currents. We also explore the possibility of electron and positron beam polarisation. The statistical significance of the signal, even in the absence of kinematical and/or detector cuts, renders the observation of such flavour violating events feasible over large regions of the parameter space. We further consider the μ-μ- + E^T_miss final state in the e- e- beam option finding that, due to a very suppressed background, this process turns out to be a truly clear probe of a supersymmetric seesaw, assuming the latter to be the unique source of lepton flavour violation.

30 pages, 48 figures

References in corpus (22)

• Observation of electron-antineutrino disappearance at Daya Bay
• Leptogenesis
• Combined results of searches for the standard model Higgs boson in pp collisions at sqrt(s) = 7 TeV
• Combined search for the Standard Model Higgs boson using up to 4.9 fb-1 of pp collision data at sqrt(s) = 7 TeV with the ATLAS detector at the LHC
• Flavour physics of leptons and dipole moments
• Low energy effects of neutrino masses
• Strong constraints on the rare decays Bs -> mu+ mu- and B0 -> mu+ mu-
• ILC Reference Design Report Volume 1 - Executive Summary
• Lepton Flavour Violation from SUSY--GUTs: Where do we stand for MEG, PRISM/PRIME and a Super Flavour factory
• Search for new physics with same-sign isolated dilepton events with jets and missing transverse energy
• $\mu -e$ conversion in nuclei within the CMSSM seesaw: universality versus non-universality
• Lepton flavour violating semileptonic tau decays in constrained MSSM-seesaw scenarios
• Impact of ${\theta }_{13}$ on Lepton Flavour Violating processes within SUSY Seesaw
• Testing the Majorana Nature of Gluinos and Neutralinos
• Slepton Production at e+e- and e-e- Linear Colliders
• Search for supersymmetry in pp collisions at sqrt(s) = 7 TeV in events with a single lepton, jets, and missing transverse momentum
• How can we test seesaw experimentally?
• Probing minimal supergravity in the type-I seesaw mechanism with lepton flavour violation at the CERN LHC
• Interplay of LFV and slepton mass splittings at the LHC as a probe of the SUSY seesaw
• Supersymmetric Lepton Flavour Violation at the LHC and LC
• Post LHC7 SUSY benchmark points for ILC physics
• Feasibility of slepton precision measurements at a muon collider

Cited by in corpus (13)

• Physics at the e+ e- Linear Collider
• Lepton flavor violation in low-scale seesaw models: SUSY and non-SUSY contributions
• Left-Right Symmetry and Lepton Number Violation at the Large Hadron Electron Collider
• Searching for Lepton Flavor Violation at a Future High Energy Electron-Positron Collider
• Neutrino textures and charged lepton flavour violation in light of theta13, MEG and LHC data
• Predictions from High Scale Mixing Unification Hypothesis
• Slepton mass splittings and cLFV in the SUSY seesaw in the light of recent experimental results
• Lepton flavor violation beyond the MSSM
• Split-Family SUSY, U(2)^5 Flavour Symmetry and Neutrino Physics
• Neutrino Physics, Lepton Flavour Violation and the LHC
• Looking for lepton flavour violation in supersymmetry at the LHC
• Potential of a Linear Collider for Lepton Flavour Violation studies in the SUSY seesaw
• Lepton flavour violation and neutrino physics: beyond the Standard Model