Phenomenology of electro-weak bosons at hadron colliders with novel variables

TL;DR

This paper reviews the phenomenology of electroweak bosons at hadron colliders, focusing on transverse momentum distributions and novel variables like * to improve experimental analysis and compare theoretical predictions with collider data.

Contribution

It introduces and analyzes the variable * as a new tool for studying electroweak boson production, comparing it to traditional transverse momentum measures.

Findings

* offers experimental advantages over Q_T.

Resummed predictions for * agree with collider data.

Theoretical calculations match Tevatron and LHC measurements.

Abstract

We review the phenomenology of electro-weak bosons produced in hadron-hadron collisions. In particular, we discuss the transverse momentum distribution of lepton pairs with invariant mass close to the Z peak. We describe the theoretical calculation for the magnitude of the transverse momentum Q_T and its comparison to Tevatron and LHC data. We also discuss the related variable \phi*, describing its experimental advantages as well as its relation to the standard Q_T variable. Finally, we compare resummed predictions for \phi* to data.