Effects of R-parity violating supersymmetry in top pair production at linear colliders with polarized beams

Abstract

In the minimal supersymmetric standard model with R-parity violation, the lepton number violating top quark interactions can contribute to the top pair production at a linear collider via tree-level u-channel squark exchange diagrams. We calculate such contributions and find that in the allowed range of these R-violating couplings, the top pair production rate as well as the top quark polarization and the forward-backward asymmetry can be significantly altered. By comparing the unpolarized beams with the polarized beams, we find that the polarized beams are more powerful in probing such new physics.

arXiv comment10 pages, 6 figs

References in corpus (25)

• R-parity violating supersymmetry
• Measurement of the 6S-7S transition polarizablility in atomic cesium and an improved test of the standard model
• Bounds on R-parity Violating Couplings at the Weak Scale and at the GUT Scale
• Top Production: Sensitivity to New Physics
• FCNC top quark decay in the MSSM: a door to SUSY physics in high luminosity colliders?
• Upper bound on all products of R-parity violating couplings ${\lambda }^{\prime }$ and ${\lambda }^{\prime \prime }$ from proton decay
• Flavor-changing Top Quark Decays In R-Parity Violating SUSY
• New Supersymmetric Contributions to $t->cV$
• Top-quark rare decay $t\to ch$ in R-parity-violating SUSY
• Review of Top Quark Physics
• Flavour changing top decays in supersymmetric extensions of the standard model
• Dimension-six CP-conserving operators of the third-family quarks and their effects on collider observables
• Flavour changing top quark decay within the minimal supersymmetric standard model
• $t\to cV$ via SUSY FCNC couplings in the unconstrained MSSM
• New Bounds on R-parity Violating Couplings
• Probing anomalous top quark interactions at the Fermilab Tevatron Collider
• SUSY-Induced Top Quark FCNC Processes at Linear Colliders
• R-parity-violating SUSY effects and signals in single top production at the Tevatron
• Experimental Constraints on Scharm-Stop Flavor Mixing and Implications in Top-quark FCNC Processes
• Single top quark production as a probe of R-parity-violating SUSY at pp and p\bar p colliders
• R-parity violation and top quark polarization at the Fermilab Tevatron collider
• Single top production at the LHC as a probe of R parity violation
• Search for Second Generation Leptoquark Pairs in pbar-p Collisions at sqrt(s) = 1.8 TeV
• Search for R-parity Violating Supersymmetry in the Dielectron Channel
• Effects of lepton number violating interactions on $t\bar{t}$ production at NLC