Measurement of the shape of the boson rapidity distribution for p\bar{p}-> Z/gamma*-> e+e- +X events produced at sqrt(s) of 1.96 TeV

TL;DR

This paper measures the shape of the boson rapidity distribution in proton-antiproton collisions at 1.96 TeV, providing precise data that aligns well with NNLO QCD predictions, especially in the forward region.

Contribution

It offers a high-precision measurement of the boson rapidity distribution at Tevatron energies, reducing uncertainties and validating NNLO QCD models.

Findings

Good agreement between data and NNLO QCD predictions

Reduced uncertainties in the forward rapidity region

Enhanced understanding of boson production dynamics

Abstract

We present a measurement of the shape of the boson rapidity distribution for p\bar{p}-> Z/gamma*-> e+e- +X events at a center-of-mass energy of 1.96 TeV. The measurement is made for events with electron-positron mass 71< M_ee < 111 GeV and uses 0.4 fb^-1 of data collected at the Fermilab Tevatron collider with the D0 detector. This measurement significantly reduces the uncertainties on the rapidity distribution in the forward region compared with previous measurements. Predictions of NNLO QCD are found to agree well with the data over the full rapidity range.