When using this data, please cite the original publication:

Additionally, you should cite the record:

@misc{hepdata.147273, author = "{CMS Collaboration}", title = "{Observation of the J/$\psi$$\to$$\mu^+\mu^-\mu^+\mu^-$ decay in proton-proton collisions at $\sqrt{s}$ = 13 TeV}", howpublished = "{HEPData (collection)}", year = 2024, note = "\url{https://doi.org/10.17182/hepdata.147273}" }

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

@misc{hepdata.147273.v1, author = "{CMS Collaboration}", title = "{Observation of the J/$\psi$$\to$$\mu^+\mu^-\mu^+\mu^-$ decay in proton-proton collisions at $\sqrt{s}$ = 13 TeV (Version 1)}", howpublished = "{HEPData (collection)}", year = 2024, note = "\url{https://doi.org/10.17182/hepdata.147273.v1}" }

You can also cite the 2 data tables individually.

Data tables

Choose table: Branching fraction Branching fraction ratio

@misc{hepdata.147273.v1/t1, author = "{CMS Collaboration}", title = "{``Branching fraction'' of ``Observation of the J/$\psi$$\to$$\mu^+\mu^-\mu^+\mu^-$ decay in proton-proton collisions at $\sqrt{s}$ = 13 TeV'' (Version 1)}", howpublished = "{HEPData (dataset)}", year = 2024, note = "\url{https://doi.org/10.17182/hepdata.147273.v1/t1}" } @misc{hepdata.147273.v1/t2, author = "{CMS Collaboration}", title = "{``Branching fraction ratio'' of ``Observation of the J/$\psi$$\to$$\mu^+\mu^-\mu^+\mu^-$ decay in proton-proton collisions at $\sqrt{s}$ = 13 TeV'' (Version 1)}", howpublished = "{HEPData (dataset)}", year = 2024, note = "\url{https://doi.org/10.17182/hepdata.147273.v1/t2}" }