R-parity violation and top quark polarization at the Fermilab Tevatron collider

1999/08/03 by Ken‐ichi Hikasa, Ken-ichi Hikasa, Jin Min Yang +1 · 44 citations
Physics and Astronomy · #Collider #Electron #Fermilab #Large Hadron Collider #Lepton #Neutrino Physics Research #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quark #Tevatron #Top quark #hep-ph

paper · pdf · doi:10.1103/physrevd.60.114041

published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 60(11) (American Physical Society) · 15 pages, 5 figures

arxiv created 1999/08/03 · openalex publication_date 1999/11/12 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

The lepton or baryon number violating top quark interactions in the supersymmetric standard model with R-parity violation contribute to the process dd\ensuremath→tt at the tree level via the t- or u-channel sfermion exchange. Since these interactions are chiral, they induce polarization to the top quark in the tt events at hadron colliders. We show in this article that the polarization can be a useful observable for probing these interactions at the upgraded Fermilab Tevatron collider, because the polarization is expected to be very small in the standard model.

Citations

• Flavor-changing top quark decays inR-parity-violating supersymmetric models
• Top-quark production in hadron-hadron collisions and anomalous top-quark–gluon couplings
• Wide Scalar Neutrino Resonance andbb¯Production at the CERN Collider LEP
• Single top quark production as a probe ofR-parity-violating supersymmetry atppandpp¯colliders
• Single top quark production as a probe for anomalous moments at hadron colliders
• Top-squark mixing effects in the supersymmetric electroweak corrections to top-quark production at the Fermilab Tevatron