When using this data, please cite the original publication:

Additionally, you should cite the record:

@misc{hepdata.127993, author = "{CMS Collaboration}", title = "{Measurement of the top quark mass using a profile likelihood approach with the lepton+jets final states in proton-proton collisions at $\sqrt{s}$ = 13 TeV}", howpublished = "{HEPData (collection)}", year = 2023, note = "\url{https://doi.org/10.17182/hepdata.127993}" }

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

@misc{hepdata.127993.v1, author = "{CMS Collaboration}", title = "{Measurement of the top quark mass using a profile likelihood approach with the lepton+jets final states in proton-proton collisions at $\sqrt{s}$ = 13 TeV (Version 1)}", howpublished = "{HEPData (collection)}", year = 2023, note = "\url{https://doi.org/10.17182/hepdata.127993.v1}" }

You can also cite this table directly.

@misc{hepdata.127993.v1/t2, author = "{CMS Collaboration}", title = "{``Covariance matrix for the top mass and the nuisance parameters'' of ``Measurement of the top quark mass using a profile likelihood approach with the lepton+jets final states in proton-proton collisions at $\sqrt{s}$ = 13 TeV'' (Version 1)}", howpublished = "{HEPData (dataset)}", year = 2023, note = "\url{https://doi.org/10.17182/hepdata.127993.v1/t2}" }