arXiv:2009.14791
ATLAS Collab.
Search for heavy resonances decaying into a pair of Z bosons in the ℓ+ℓ−ℓ′+ℓ′− and ℓ+ℓ−νν final states using 139 fb−1 of proton-proton collisions at √s=13 TeV with the ATLAS detector