Prospects for top-prime quark discovery at the Tevatron

TL;DR

This paper explores the potential for discovering a heavy top-prime quark at the Tevatron collider through resonant pair production via a vector color octet, and discusses related single production and possible explanations for observed anomalies.

Contribution

It proposes a new search strategy for top-prime quarks involving a vector color octet and connects this to existing experimental excesses.

Findings

Top-prime quark up to 600 GeV can be discovered via pair production.

Single top-prime production may be observable through Higgs decay channels.

A 1 TeV color octet could explain CDF excess in semileptonic events.

Abstract

We show that a top-prime quark as heavy as 600 GeV can be discovered at the Tevatron, provided it is resonantly pair-produced via a vector color octet. If the top-prime originates from a vectorlike quark, then the production of a single top-prime in association with a top may also be observable, even through its decay into a Higgs boson and a top. A color octet with mass of about 1 TeV, which decays into a top-prime pair, may account for the CDF excess of semileptonic (Wj)(Wj) events.