Search for ZZ and ZW production in pp̅ collisions at √s=1.96 TeV

Authors

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

Document Type

Article

Date of this Version

5-16-2005

Comments

Published by American Physical Society. Phys. Rev. D 71, 091105 (2005). http://prd.aps.org/. Copyright © 2005 American Physical Society. Permission to use.

Abstract

We present a search for ZZ and ZW vector boson pair production in pp̅ collisions at √s =1.96 TeV using the leptonic decay channels ZZ→_llνν, ZZ→_{lll′ l′}, and ZW→_lll′ν. In a data sample corresponding to an integrated luminosity of 194 pb^-1 collected with the Collider Detector at Fermilab, 3 candidate events are found with an expected background of 1.0±0.2 events. We set a 95% confidence level upper limit of 15.2 pb on the cross section for ZZ and ZW production, compared to the standard model prediction of 5.0±0.4 pb.