Measurement of dσ/dM and Forward-Backward Charge Asymmetry for High-Mass Drell-Yan e⁺e^- Pairs from pp̅ Collisions at √s = 1.8 TeV

Authors

• T. Affolder, Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California
• Kenneth A. Bloom, University of Nebraska-LincolnFollow
• Collider Detector at Fermilab Collaboration

Document Type

Article

Date of this Version

9-24-2001

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, A_FB, and production cross section dσ /dM for e⁺e^- pairs with mass M_ee> 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.