Observation of $ \Upsilon\mathrm{(1S)} $ + Z associated production and measurement of the effective double-parton scattering cross section in proton-proton collisions at $ \sqrt{s}= $ 13 TeV
Aram Hayrapetyan, Vladimir Makarenko, Armen Tumasyan, Wolfgang Adam et autres
The observation of associated production of an $ \Upsilon\mathrm{(1S)} $ meson with a Z boson and a measurement of the ratio of its fiducial cross section to the fiducial cross section of the Z boson are presented. Both the $ \Upsilon\mathrm{(1S)} $ …
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