Complementarity of Forward-Backward Asymmetry for discovery of Z' bosons at the Large Hadron Collider

TL;DR

This paper explores how the Forward-Backward Asymmetry (AFB) can enhance the discovery and analysis of Z' bosons at the LHC, providing a complementary approach to traditional cross section measurements.

Contribution

It demonstrates that AFB is a powerful tool for Z' detection at the LHC, effective for both narrow and wide width scenarios, supplementing conventional search methods.

Findings

AFB can set bounds or discover Z' bosons at the LHC.

AFB complements cross section measurements in Z' searches.

AFB is effective for both narrow and wide Z' widths.

Abstract

The Forward-Backward Asymmetry (AFB) in Z' physics is commonly only thought of as an observable which possibly allows one to profiling a Z' signal by distinguishing different models embedding such (heavy) spin-1 bosons. In this brief review, we examine the potential of AFB in setting bounds on or even discovering a Z' at the Large Hadron Collider (LHC) and proof that it might be a powerful tool for this purpose. We analyse two different scenarios: Z's with a narrow and wide width, respectively. We find that, in both cases, AFB can complement the conventional searches in accessing Z' signals traditionally based on cross section measurements only.