ZZ → l⁺l^-v⁺v^- production in pp collisions at √s = 1.96 TeV

Authors

• V. M. Abazov, Joint Institute for Nuclear Research, Dubna, Russia
• Kenneth A. Bloom, University of Nebraska-LincolnFollow
• D0 Collaboration

Document Type

Article

Date of this Version

October 2008

Comments

Published in PHYSICAL REVIEW D 78, 072002 (2008). Copyright 2008. Used by permission.

Abstract

We describe a search for Z boson pair production in pp collisions at √s = 1.96 TeV with the D0 detector at the Fermilab Tevatron Collider using a data sample corresponding to an integrated luminosity of 2.7 fb^-1. Using the final state decay ZZ → ℓ⁺ ℓ^-v⁺v^- (where ℓ = e or μ) we find a signal with a 2.6 standard deviations significance (2.0 expected) corresponding to a cross section of σ(pp → ZZ + X) = 2.01 ± 0.93(stat) ± 0.29(sys) pb.