% IMPORTANT: The following is UTF-8 encoded. This means that in the presence % of non-ASCII characters, it will not work with BibTeX 0.99 or older. % Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or % “biber”. @ARTICLE{Aad:598024, author = {Aad, Georges and others}, collaboration = {{ATLAS Collaboration}}, title = {{E}vidence of pair production of longitudinally polarised vector bosons and study of {CP} properties in ${ZZ} \to 4\ell$ events with the {ATLAS} detector at $\sqrt{s} = 13$ {T}e{V}}, reportid = {PUBDB-2023-06711, arXiv:2310.04350. CERN-EP-2023-199}, year = {2023}, note = {Comments: 47 pages in total, author list starting page 29, 8 figures, 2 tables, submitted to JHEP. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2021-05/}, abstract = {A study of the polarisation and CP properties in $ZZ$ production is presented. The used data set corresponds to an integrated luminosity of 140 fb$^{-1}$ of proton-proton collisions at a centre-of-mass energy of $13$ TeV recorded by the ATLAS detector at the Large Hadron Collider. The $ZZ$ candidate events are reconstructed using two same-flavour opposite-charge electron or muon pairs. The production of two longitudinally polarised $Z$ bosons is measured with a significance of 4.3 standard deviations, and its cross-section is measured in a fiducial phase space to be $2.45 \pm 0.60$ fb, consistent with the next-to-leading-order Standard Model prediction. The inclusive differential cross-section as a function of a CP-sensitive angular observable is also measured. The results are used to constrain anomalous CP-odd neutral triple gauge couplings.}, keywords = {p p: colliding beams (INSPIRE) / Z0: pair production (INSPIRE) / Z0: leptonic decay (INSPIRE) / higher-order: 1 (INSPIRE) / coupling: gauge (INSPIRE) / coupling: (3gauge boson) (INSPIRE) / coupling: anomaly (INSPIRE) / channel cross section: measured (INSPIRE) / muon: pair production (INSPIRE) / p p: scattering (INSPIRE) / ATLAS (INSPIRE) / polarization: longitudinal (INSPIRE) / phase space (INSPIRE) / electron: pair production (INSPIRE) / Z0: polarization (INSPIRE) / CERN LHC Coll (INSPIRE) / vector boson: pair production (INSPIRE) / differential cross section: measured (INSPIRE) / angular dependence (INSPIRE) / experimental results (INSPIRE) / 13000 GeV-cms (INSPIRE)}, cin = {ATLAS}, cid = {I:(DE-H253)ATLAS-20120731}, pnm = {611 - Fundamental Particles and Forces (POF4-611)}, pid = {G:(DE-HGF)POF4-611}, experiment = {EXP:(DE-H253)LHC-Exp-ATLAS-20150101}, typ = {PUB:(DE-HGF)25}, eprint = {2310.04350}, howpublished = {arXiv:2310.04350}, archivePrefix = {arXiv}, SLACcitation = {$\%\%CITATION$ = $arXiv:2310.04350;\%\%$}, doi = {10.3204/PUBDB-2023-06711}, url = {https://bib-pubdb1.desy.de/record/598024}, }