When using this data, please cite the original publication:

Additionally, you should cite the record:

@misc{hepdata.61421, author = "{ATLAS Collaboration}", title = "{Measurement of angular correlations in Drell-Yan lepton pairs to probe Z/gamma* boson transverse momentum at sqrt(s)=7 TeV with the ATLAS detector}", howpublished = "{HEPData (collection)}", year = 2015, note = "\url{https://doi.org/10.17182/hepdata.61421}" }

or, if you prefer, a specific version of the record:

@misc{hepdata.61421.v1, author = "{ATLAS Collaboration}", title = "{Measurement of angular correlations in Drell-Yan lepton pairs to probe Z/gamma* boson transverse momentum at sqrt(s)=7 TeV with the ATLAS detector (Version 1)}", howpublished = "{HEPData (collection)}", year = 2015, note = "\url{https://doi.org/10.17182/hepdata.61421.v1}" }

You can also cite this table directly.

@misc{hepdata.61421.v1/t3, author = "{ATLAS Collaboration}", title = "{``Table 3'' of ``Measurement of angular correlations in Drell-Yan lepton pairs to probe Z/gamma* boson transverse momentum at sqrt(s)=7 TeV with the ATLAS detector'' (Version 1)}", howpublished = "{HEPData (dataset)}", year = 2015, note = "\url{https://doi.org/10.17182/hepdata.61421.v1/t3}" }