Heavy Quarks Above the Top at the Tevatron

TL;DR

This paper analyzes the potential of the Tevatron collider to discover new vector-like quarks predicted by warped extra dimension models, highlighting their electroweak single production and detection prospects.

Contribution

It provides a model-independent assessment of Tevatron's reach for heavy vector-like quarks with significant mixing to light quarks, emphasizing electroweak production channels.

Findings

Tevatron can potentially observe quarks up to 580-630 GeV mass.

Single production channels are promising for detection.

Detection significance depends on integrated luminosity and mixing strength.

Abstract

Recent developments in models with warped extra dimensions have opened new possibilities for vector-like quark studies at hadron colliders. These new vector-like quarks can mix sizably with light Standard Model quarks without violating low energy constraints. We perform a model-independent analysis to determine the Tevatron reach in the search for new quarks. We find that the Tevatron has great potential to observe such quarks via their electroweak single production due to their mixing with valence quarks. With 4 (8) fb-1 integrated luminosity, one may reach a 5\sigma statistical significance for a heavy quark of mass 580 (630) GeV if the heavy quark-Standard Model quark mixing parameter is order one.