TY  - RPRT
TI  - Measurements of Zγ + jets differential cross sections in pp collisions at √s =13 TeV with the ATLAS detector
IS  - ATLAS-CONF-2022-047
M1  - PUBDB-2022-07047
M1  - ATLAS-CONF-2022-047
SP  - 48
PY  - 2022
N1  - Preliminary results. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/CONFNOTES/ATLAS-CONF-2022-047. The authors list may be incomplete!
AB  - Differential cross-section measurements of Zγ production in association with hadronic jets are presented, using the full Run-2 proton-proton dataset of 139 fb<sup>−1</sup> produced by the LHC at √s = 13 TeV and collected by the ATLAS detector. Distributions are measured using events in which the Z boson decays leptonically and the photon is predominantly radiated off the initial state quarks. Both one- and two-dimensional observables are considered, including observables sensitive to the hard scatter in the event and observable which probe additional soft and collinear radiation. The measurements are compared to different Standard Model predictions, both parton-shower Monte-Carlo simulation and fixed-order QCD calculations. General good agreement is observed between data and state-of-the art theoretical next-to-next-leading-order predictions <b>MATRIX</b><b>/</b><b>MiNNLO</b><sub>PS</sub> and with <b>M</b><b>AD</b><b>G</b><b>RAPH</b>5_a<b>MC</b>@<b>NLO</b> and SHERPA multilegnext-to-leading order generators.
KW  - p p: colliding beams (INSPIRE)
KW  - Z0: associated production (INSPIRE)
KW  - photon: associated production (INSPIRE)
KW  - jet: associated production (INSPIRE)
KW  - radiation: initial-state interaction (INSPIRE)
KW  - Z0: leptonic decay (INSPIRE)
KW  - numerical calculations: Monte Carlo (INSPIRE)
KW  - quantum chromodynamics: perturbation theory (INSPIRE)
KW  - perturbation theory: higher-order (INSPIRE)
KW  - higher-order: 1 (INSPIRE)
KW  - higher-order: 2 (INSPIRE)
KW  - boson: decay (INSPIRE)
KW  - jet: hadronic (INSPIRE)
KW  - p p: scattering (INSPIRE)
KW  - ATLAS (INSPIRE)
KW  - differential cross section: measured (INSPIRE)
KW  - transverse momentum dependence (INSPIRE)
KW  - multiplicity: dependence (INSPIRE)
KW  - jet: multiplicity (INSPIRE)
KW  - mass dependence (INSPIRE)
KW  - angular dependence (INSPIRE)
KW  - initial state (INSPIRE)
KW  - collinear (INSPIRE)
KW  - CERN LHC Coll (INSPIRE)
KW  - experimental results (INSPIRE)
KW  - 13000 GeV-cms (INSPIRE)
KW  - Standard Model (autogen)
KW  - pQCD (autogen)
KW  - Z boson (autogen)
KW  - gamma (autogen)
KW  - Zgamma (autogen)
KW  - jets (autogen)
LB  - PUB:(DE-HGF)29
DO  - DOI:10.3204/PUBDB-2022-07047
UR  - https://bib-pubdb1.desy.de/record/486047
ER  -