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Measurement of theWZandZZproduction cross sections using leptonic final states in8.6 fb−1ofpp¯collisions

2012/01/26 by D0 Collaboration, V. M. Abazov, B. Abbott +98 · 40 citations
Mathematics · Physics and Astronomy · #Combinatorics #Computer science #High-Energy Particle Collisions Research #Luminosity #Mathematics #Particle physics #Particle physics theoretical and experimental studies #Physics #Production (economics) #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Section (typography) #hep-ex

paper · pdf · doi:10.1103/physrevd.85.112005

published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 85(11) (American Physical Society) · Submitted to Phys. Rev. D

arxiv created 2012/01/26 · openalex publication_date 2012/06/12 · arxiv updated 2013/05/29 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We study the processes pp\ensuremath→WZ\ensuremath→\ensuremathℓ^\ifmmode±\else\textpm\fi\ensuremathν\ensuremathℓ+\ensuremathℓ^\ensuremath- and pp\ensuremath→ZZ\ensuremath→\ensuremathℓ+\ensuremathℓ^\ensuremath-\ensuremathν\ensuremathν, where \ensuremathℓ=e or \ensuremathμ. Using 8.6 fb^\ensuremath-1 of integrated luminosity collected by the D0 experiment at the Fermilab Tevatron collider, we measure the WZ production cross section to be 4.50_\ensuremath-0.66+0.63 pb which is consistent with, but slightly larger than, the prediction of the standard model. The ZZ cross section is measured to be 1.64\ifmmode±\else\textpm\fi0.46 pb, in agreement with a prediction of the standard model. Combination with an earlier analysis of the ZZ\ensuremath→\ensuremathℓ+\ensuremathℓ^\ensuremath-\ensuremathℓ+\ensuremathℓ^\ensuremath- channel yields a ZZ cross section of 1.44_\ensuremath-0.34+0.35 pb.

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