Measurement of WZ and ZZ production in pp collisions at \(\sqrt{s} = 8\,\text {TeV} \)
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Measurements are reported of the WZ and ZZ production cross sections in proton-proton collisions at \(\sqrt{s} = 8\) \(\,\text {TeV}\) in final states where one Z boson decays to b-tagged jets. The other gauge boson, either W or Z, is detected through its leptonic decay (either \(\mathrm {W}\rightarrow \mathrm {e}\nu \) , \(\mathrm {\mu }\nu \) or \(\mathrm {Z}\rightarrow \mathrm {e}^+\mathrm {e}^-\) , \(\mathrm {\mu ^+}\mathrm {\mu ^-}\) , or \({\nu }\overline{\nu }\) ). The results are based on data corresponding to an integrated luminosity of 18.9?fb \(^{-1}\) collected with the CMS detector at the Large Hadron Collider. The measured cross sections, \(\sigma (\mathrm {p}\mathrm {p}\rightarrow \mathrm {W}\mathrm {Z}) = 30.7 \pm 9.3\,\text {(stat.)} \pm 7.1\,\text {(syst.)} \pm 4.1\,\text {(th.)} \pm 1.0\,\text {(lum.)} \,\text {pb} \) and \(\sigma (\mathrm {p}\mathrm {p}\rightarrow \mathrm {Z}\mathrm {Z}) = 6.5 \pm 1.7\,\text {(stat.)} \pm 1.0\,\text {(syst.)} \pm 0.9\,\text {(th.)} \pm 0.2\,\text {(lum.)} \,\text {pb} \) , are consistent with next-to-leading order quantum chromodynamics calculations.

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