Measurement of dsigma/DM Forward-Backward Charge Asymmetry for High Mass Drell-Yan e+e- Pairs from p-pbar Collisions at sqrt(s)=1.8 TeV

TL;DR

This paper measures the forward-backward charge asymmetry and production cross section of high-mass electron-positron pairs in proton-antiproton collisions, comparing results with Standard Model predictions and models with an additional Z' boson.

Contribution

It provides the first detailed measurement of A_FB and dsigma/dM for high-mass Drell-Yan pairs at Tevatron energies, testing Standard Model and Z' models.

Findings

Measured A_FB and dsigma/dM for M_ee > 40 GeV/c2.

Results are consistent with Standard Model predictions.

Constraints on Z' boson models are derived.

Abstract

We report on a measurement of the mass dependence of the forward-backward charge asymmetry, A_FB, and production cross section dsigma/dM for e+e- pairs with mass M_ee>40 GeV/c2. The data sample consists of 108 pb-1 of p-pbar collisions at sqrt(s)=1.8 TeV taken by the Collider Detector at Fermilab during 1992-1995. The measured asymmetry and dsigma/dM are compared with the predictions of the Standard Model and a model with an extra Z' gauge boson.