When using this data, please cite the original publication:

Additionally, you should cite the record:

@misc{hepdata.57910, author = "{ATLAS Collaboration}", title = "{Measurement of the centrality dependence of the charged particle pseudorapidity distribution in lead-lead collisions at sqrt(s_NN) = 2.76 TeV with the ATLAS detector}", howpublished = "{HEPData (collection)}", year = 2011, note = "\url{https://doi.org/10.17182/hepdata.57910}" }

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

@misc{hepdata.57910.v1, author = "{ATLAS Collaboration}", title = "{Measurement of the centrality dependence of the charged particle pseudorapidity distribution in lead-lead collisions at sqrt(s_NN) = 2.76 TeV with the ATLAS detector (Version 1)}", howpublished = "{HEPData (collection)}", year = 2011, note = "\url{https://doi.org/10.17182/hepdata.57910.v1}" }

You can also cite this table directly.

@misc{hepdata.57910.v1/t1, author = "{ATLAS Collaboration}", title = "{``Table 1'' of ``Measurement of the centrality dependence of the charged particle pseudorapidity distribution in lead-lead collisions at sqrt(s_NN) = 2.76 TeV with the ATLAS detector'' (Version 1)}", howpublished = "{HEPData (dataset)}", year = 2011, note = "\url{https://doi.org/10.17182/hepdata.57910.v1/t1}" }