Observation of $Υ$(1S) + Z associated production and measurement of the effective double-parton scattering cross section in proton-proton collisions at $\sqrt{s}$ = 13 TeV

The CMS collaboration
CMS-BPH-23-007, 2026.

Abstract (data abstract)
CERN-LHC-CMS. Observation of the $\mathrm{Y(1S)}$ meson production in association with a Z boson in proton-proton collisions at $\sqrt{s}=13\,\mathrm{TeV}$.

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