Research Papers in Physics and Astronomy

 

Date of this Version

September 2001

Comments

Published by American Physical Society. Phys. Rev. Lett. 87, 131802 (2001). http://prl.aps.org. Copyright © 2001 American Physical Society. Permission to use.

Abstract

We report on a measurement of the mass dependence of the forward-backward charge asymmetry, AFB, and production cross section dσ /dM for e+e- pairs with mass Mee> 40 GeV/c2. The data sample consists of 108 pb-1 of pp̅ collisions at √s= 1.8 TeV taken by the Collider Detector at Fermilab during 1992–1995. The measured asymmetry and dσ/dM are compared with the predictions of the standard model and a model with an extra Z′ gauge boson.

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