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Measurement of the WZ production cross section in pp collisions at $\sqrt{s} = 7$ and 8 $\,\text{TeV}$ and search for anomalous triple gauge couplings at $\sqrt{s} = 8\,\text{TeV} $

2017-04-12Journal article Open access
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dc.contributor.authorCMS collaboration (2269 authors)
dc.contributor.authorCalpas, Betty
dc.contributor.authorNayak, Aruna
dc.contributor.authorBargassa, Pedrame
dc.contributor.authorBeirão Da Cruz E Silva, Cristóvão
dc.contributor.authorDi Francesco, Agostino
dc.contributor.authorFaccioli, Pietro
dc.contributor.authorFerreira Parracho, Pedro Guilherme
dc.contributor.authorGallinaro, Michele
dc.contributor.authorHollar, Jonathan
dc.contributor.authorLeonardo, Nuno
dc.contributor.authorLloret Iglesias, Lara
dc.contributor.authorRodrigues Antunes, Joao
dc.contributor.authorSeixas, Joao
dc.contributor.authorToldaiev, Oleksii
dc.contributor.authorVadruccio, Daniele
dc.contributor.authorVarela, Joao
dc.contributor.authorVischia, Pietro
dc.contributor.authorDavid Tinoco Mendes, Andre
dc.contributor.authorSilva, Pedro
dc.contributor.authorMusella, Pasquale
dc.contributor.authorPela, Joao
dc.date.accessioned2019-02-04T11:15:14Z
dc.date.available2019-02-04T11:15:14Z
dc.date.issued2017-04-12
dc.date.updated2019-02-04T11:15:13Z
dc.description.abstractThe WZ production cross section is measured by the CMS experiment at the CERN LHC in proton–proton collision data samples corresponding to integrated luminosities of 4.9 $\,\text{fb}^{-1}$ collected at $\sqrt{s} = 7\,\text{TeV} $ , and 19.6 $\,\text{fb}^{-1}$ at $\sqrt{s} = 8\,\text{TeV} $ . The measurements are performed using the fully-leptonic WZ decay modes with electrons and muons in the final state. The measured cross sections for $71< m_{\mathrm{Z}} < 111\,\text{GeV} $ are $\sigma ({\mathrm{p}\mathrm{p}}\rightarrow {\mathrm{W}\mathrm{Z}},~\sqrt{s} = 7\,\text{TeV}) = 20.14 \pm 1.32\,\text{(stat)} \pm 0.38\,\text{(theo)} \pm 1.06\,\text{(exp)} \pm 0.44\,\text{(lumi)} $ $\,\text{pb}$ and $\sigma ({\mathrm{p}\mathrm{p}}\rightarrow {\mathrm{W}\mathrm{Z}},~\sqrt{s} = 8\,\text{TeV}) = 24.09 \pm 0.87\,\text{(stat)} \pm 0.80\,\text{(theo)} \pm 1.40\,\text{(exp)} \pm 0.63\,\text{(lumi)} $ $\,\text{pb}$ . Differential cross sections with respect to the $\mathrm{Z}$ boson $p_{\mathrm{T}}$ , the leading jet $p_{\mathrm{T}}$ , and the number of jets are obtained using the $\sqrt{s} = 8\,\text{TeV} $ data. The results are consistent with standard model predictions and constraints on anomalous triple gauge couplings are obtained.
dc.description.versionPeer Reviewed
dc.identifierEur.Phys.J. C77 (2017) 236; DOI 10.1140/epjc/s10052-017-4730-z
dc.identifier.urihttp://dx.doi.org/10.1140/epjc/s10052-017-4730-z
dc.identifier.urihttp://hdl.handle.net/10400.26/27190
dc.language.isoeng
dc.titleMeasurement of the WZ production cross section in pp collisions at $\sqrt{s} = 7$ and 8 $\,\text{TeV}$ and search for anomalous triple gauge couplings at $\sqrt{s} = 8\,\text{TeV} $
dc.typejournal article
dspace.entity.typePublication
rcaap.rightsopenAccesspt
rcaap.typearticle

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