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 $\sqrt{s}=13\,\mathrm{TeV}$.

  • Fiducial cross section ratio

    10.17182/hepdata.159753.v1/t1

    $\sigma(\mathrm{pp}\to\mathrm{Z+Y(1S)})\mathcal{B}(\mathrm{Z}\to\mu\mu)\mathcal{B}(\mathrm{Y(1S)}\to\mu\mu) / \sigma(\mathrm{pp}\to\mathrm{Z})\mathcal{B}(\mathrm{Z}\to\mu\mu\mu\mu)$

  • DPS fiducial cross section ratio

    10.17182/hepdata.159753.v1/t2

    DPS $\sigma(\mathrm{pp}\to\mathrm{Z+Y(1S)})\mathcal{B}(\mathrm{Z}\to\mu\mu)\mathcal{B}(\mathrm{Y(1S)}\to\mu\mu) / \sigma(\mathrm{pp}\to\mathrm{Z})\mathcal{B}(\mathrm{Z}\to\mu\mu\mu\mu)$

  • Differential fiducial cross section ratio vs Y(1S) pT

    10.17182/hepdata.159753.v1/t3

    $\sigma(\mathrm{pp}\to\mathrm{Z+Y(1S)})\mathcal{B}(\mathrm{Z}\to\mu\mu)\mathcal{B}(\mathrm{Y(1S)}\to\mu\mu) / \sigma(\mathrm{pp}\to\mathrm{Z})\mathcal{B}(\mathrm{Z}\to\mu\mu\mu\mu)$

  • DPS differential fiducial cross section ratio vs Y(1S) pT

    10.17182/hepdata.159753.v1/t4

    $\sigma(\mathrm{pp}\to\mathrm{Z+Y(1S)})\mathcal{B}(\mathrm{Z}\to\mu\mu)\mathcal{B}(\mathrm{Y(1S)}\to\mu\mu) / \sigma(\mathrm{pp}\to\mathrm{Z})\mathcal{B}(\mathrm{Z}\to\mu\mu\mu\mu)$

  • Differential fiducial cross section ratio vs Z pT

    10.17182/hepdata.159753.v1/t5

    $\sigma(\mathrm{pp}\to\mathrm{Z+Y(1S)})\mathcal{B}(\mathrm{Z}\to\mu\mu)\mathcal{B}(\mathrm{Y(1S)}\to\mu\mu) / \sigma(\mathrm{pp}\to\mathrm{Z})\mathcal{B}(\mathrm{Z}\to\mu\mu\mu\mu)$

  • DPS differential fiducial cross section ratio vs Z pT

    10.17182/hepdata.159753.v1/t6

    $\sigma(\mathrm{pp}\to\mathrm{Z+Y(1S)})\mathcal{B}(\mathrm{Z}\to\mu\mu)\mathcal{B}(\mathrm{Y(1S)}\to\mu\mu) / \sigma(\mathrm{pp}\to\mathrm{Z})\mathcal{B}(\mathrm{Z}\to\mu\mu\mu\mu)$

  • DPS effective cross section

    10.17182/hepdata.159753.v1/t7

    inclusive DPS effective cross section

  • DPS effective cross section vs Y(1S) pT

    10.17182/hepdata.159753.v1/t8

    differential DPS effective cross section vs Y(1S) $p_\mathrm{T}$

  • DPS effective cross section vs Z pT

    10.17182/hepdata.159753.v1/t9

    differential DPS effective cross section vs Z $p_\mathrm{T}$

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