W-Jet Rapidity Correlations in $p\bar p$ Collisions at $\sqrt{s}=1.8$ TeV

TL;DR

This study analyzes W-jet rapidity correlations in proton-antiproton collisions at 1.8 TeV, comparing experimental data with QCD models and a color dipole model, revealing that jets are more central than predicted by standard models.

Contribution

It provides the first comparison of W-jet rapidity correlations with both LO, NLO QCD and color dipole models in high-energy p-pbar collisions.

Findings

Jets are more central than LO and NLO QCD predictions.

Qualitative agreement with the color dipole model.

Experimental data suggests the need for improved modeling of jet rapidity distributions.

Abstract

D0 has used W -> e nu events produced in association with a high $p_T$ jet to examine the effects of strong radiative corrections. We have compared the primary jet pseudorapidity distribution, as a function of reconstructed W rapidity to leading order (LO) and next to leading order (NLO) QCD Monte Carlos, as well as a model based on extended color dipoles. Our preliminary analysis finds that the primary jet is more central than either LO or NLO expectations and is in qualitative agreement with the color dipole model.