Zt and \gamma t production via top flavour-changing neutral couplings at the Fermilab Tevatron

TL;DR

This paper explores how to measure top quark flavor-changing neutral couplings at the Fermilab Tevatron by analyzing associated production of a top quark with a Z boson or photon, focusing on specific event signatures.

Contribution

It proposes new methods for detecting top flavor-changing neutral couplings through particular event signatures at the Tevatron, enhancing measurement precision.

Findings

Identifies optimal event signatures for coupling detection

Suggests search strategies involving jets, missing energy, and photons

Provides analysis of decay channels for top FCNC processes

Abstract

Associated single top production with a Z boson or a photon at large hadron colliders provides a precise determination of top flavour-changing neutral couplings. The best way to measure these couplings with the up quark at Tevatron is to search for events with three jets and missing energy or events with a photon, a charged lepton, a jet and missing energy. Other decay channels are also discussed.