Single top quark production ineγcollisions and testing technicolor models

1998/11/30 by Xuelei Wang, Xue-Lei Wang, Yu-Ping Kuang +4 · 1 citation
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1103/physrevd.60.014002

published as Phys.Rev. D60 (1999) 014002 · 15-page RevTex file with 7 figure using epsfig. Version for publication in Phys. Rev. D

arxiv created 1999/03/17 · openalex publication_date 1999/05/20 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/30

Abstract

We study the single top quark production process e⁺\stackrel\ensuremath→\ensuremathγtb\ensuremathν_e in various kinds of technicolor models in high energy e\ensuremathγ collisions at the future e⁺e^\ensuremath- linear colliders. It is shown that if there is a certain charged pseudo-Goldstone-boson (PGB) coupling to tb, the tb-channel PGB contribution is dominant, but the situation is quite different from that in the neutral channel \ensuremathγ\stackrel\ensuremath→\ensuremathγtt due to the destructive nature of different amplitudes. At the DESY linear collider TESLA, the event rates in models with tb-channel PGB contributions, such as the top-color-assisted technicolor model, etc., are experimentally measurable. The e⁺\stackrel\ensuremath→\ensuremathγtb\ensuremathν_e process provides a feasible test of technicolor models with tb-channel charged PGB contributions.

Citations

• Observation of the Top Quark
• Single-top-quark production via
• Observation of Top Quark Production in Pbar-P Collisions
• Analysis of electroweak precision data and prospects for future improvements
• Revenge of the one-family technicolor models
• Axial-Vector Vertex in Spinor Electrodynamics

Cited by

• QCD corrections to flavor-changing-neutral-current single top production at the DESY HERA collider