Distinguishing New Physics Scenarios at a Linear Collider with Polarized Beams

Abstract

Numerous non-standard dynamics are described by contact-like effective interactions that can manifest themselves through deviations of the cross sections from the Standard Model predictions. If one such deviation were observed, one should try to identify to a given confidence level the actual source among the possible non-standard interactions that in principle can explain it. We here estimate the potential identification reach on different New Physics effective interactions, obtainable from the angular distributions of lepton pair production processes at the planned International Linear Collider with polarized beams. The models discussed are the interactions based on gravity in large and in TeV^{-1} extra dimensions and the compositeness-inspired four-fermion contact interactions. The availability of both beams polarized in many cases plays an essential role in enhancing the identification sensitivity.

21 pages, LaTex, 11 figures. One author was missing from the previous version. The authors list has been completed, no other changes

References in corpus (8)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Graviton collider effects in one and more large extra dimensions
• Search for Large Extra Spatial Dimensions in Dimuon Production with the D0 Detector
• Lowest order QED radiative corrections to longitudinally polarized Moller scattering
• Search For Extra Dimensions At LEP
• Identification of indirect new physics effects at e^+e^- colliders: the large extra dimensions case
• Observational Evidence for Extra Dimensions from Dark Matter
• Sensitivity to Contact Interactions and Extra Dimensions in Di-lepton and Di-photon Channels at Future Colliders

Cited by in corpus (10)

• On the choice of beam polarization in $e^{+}{e}^{-}\to ZZ/Z\gamma$ and anomalous triple gauge-boson couplings
• Prospects of type-II seesaw at future colliders in light of the DAMPE $e^{+}{e}^{-}$ excess
• Discriminating Z' from anomalous trilinear gauge coupling signatures in e+e- \to W+W- at ILC with polarized beams
• Identification of extra neutral gauge bosons at the International Linear Collider
• Probing the anomalous triple gauge boson couplings in $e^{+}{e}^{-}\to W^{+}{W}^{-}$ using $W$ polarizations with polarized beams
• Beam polarization effects on Z-boson pair production at electron-positron colliders: a full one-loop analysis
• Sneutrino Identification in Lepton Pair Production at ILC with Polarized Beams
• Discriminating large extra dimensions at the ILC with polarized beams
• Distinguishing new physics scenarios with polarized electron and positron beams
• Revealing the large extra dimension effective interaction at an e^+e^- collider with polarized beams