First Measurements of Inclusive W and Z Cross Sections from Run II of the Fermilab Tevatron Collider

Authors

Darin Acosta, University of FloridaFollow
Kenneth A. Bloom, University of Nebraska-LincolnFollow
Collider Detector at Fermilab Collaboration

Date of this Version

3-11-2005

Comments

Published by American Physical Society. Phys. Rev. Lett. 94, 091803 (2005). http://prl.aps.org. Copyright © 2005 American Physical Society. Permission to use.

Abstract

We report the first measurements of inclusive W and Z cross sections times leptonic branching ratios for pp̅ collisions at √s =1.96 TeV, based on their decays to electrons and muons. The data correspond to an integrated luminosity of 72 pb^-1 recorded with the CDF detector at the Fermilab Tevatron. We test e-µ universality in W decays, and we measure the ratio of leptonic W and Z rates from which the leptonic branching fraction B (W→ ℓν) can be extracted as well as an indirect value for the total width of the W and the Cabibbo-Kobayashi-Maskawa matrix element, |V_CS|.