Evidence of Color Coherence Effects in W+jets Events from ppbar Collisions at sqrt(s) = 1.8 TeV

TL;DR

This paper investigates color coherence effects in proton-antiproton collisions at 1.8 TeV by analyzing particle distributions in W+jets events, comparing data with simulations and theoretical calculations.

Contribution

It provides experimental evidence of color coherence effects in W+jets events and compares different theoretical models and simulations to interpret these effects.

Findings

Observation of color interference effects in particle distributions.

Agreement between data and certain Monte Carlo models.

Support for the local parton-hadron duality hypothesis.

Abstract

We report the results of a study of color coherence effects in ppbar collisions based on data collected by the D0 detector during the 1994-1995 run of the Fermilab Tevatron Collider, at a center of mass energy sqrt(s) = 1.8 TeV. Initial-to-final state color interference effects are studied by examining particle distribution patterns in events with a W boson and at least one jet. The data are compared to Monte Carlo simulations with different color coherence implementations and to an analytic modified-leading-logarithm perturbative calculation based on the local parton-hadron duality hypothesis.