Measurement of the ZZ production cross section in proton-proton collisions at s=8 TeV using the ZZ → ℓ−ℓ+ℓ′−ℓ′+ and ZZ→ℓ−ℓ+νν¯ decay channels with the ATLAS detector

A measurement of the ZZ production cross section in the ℓ−ℓ+ℓ′ −ℓ′ + and ℓ−ℓ+νν¯$$ {\ell}^{-}{\ell}^{+} u \overline{ u} $$ channels (ℓ = e, μ) in proton-proton collisions at s=8$$ \sqrt{s}=8 $$TeV at the Large Hadron Collider at CERN, using data corresponding to an integrated luminosity of 20.3 fb−1