Measurements of the Z Z production cross sections in the 2l2ν channel in proton–proton collisions at s√=7 and 8 TeV and combined constraints on triple gauge couplings
Author(s)
Type
Journal Article
Abstract
© 2015, CERN for the benefit of the CMS collaboration.Measurements of the ZZ production cross sections in proton–proton collisions at center-of-mass energies of 7 and 8 TeV are presented. Candidate events for the leptonic decay mode ZZ → 2l2ν, where l denotes an electron or a muon, are reconstructed and selected from data corresponding to an integrated luminosity of 5.1 (19.6)fb-1 at 7 (8)TeV collected with the CMS experiment. The measured cross sections, (Formula presented.), are in good agreement with the standard model predictions with next-to-leading-order accuracy. The selected data are analyzed to search for anomalous triple gauge couplings involving the ZZ final state. In the absence of any deviation from the standard model predictions, limits are set on the relevant parameters. These limits are then combined with the previously published CMS results for ZZ in 4l final states, yielding the most stringent constraints on the anomalous couplings.
Date Issued
2015-10-29
Online Publication Date
2015-10-29
2016-05-23T12:23:10Z
Date Acceptance
2015-09-25
ISSN
1434-6052
Publisher
Springer Verlag
Journal / Book Title
European Physical Journal C
Volume
75
Copyright Statement
© CERN for the benefit of the CMS collaboration 2015. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Source Database
pubmed
Identifier
3706
Subjects
Nuclear & Particles Physics
0206 Quantum Physics
0202 Atomic, Molecular, Nuclear, Particle And Plasma Physics
Publication Status
Published
Article Number
511