If you hold a CERN-TH contract as Staff, Fellow, Scientific Associate, or if you are a CERN-TH emeritus you can use the CERN-TH affiliation for articles describing research carried out entirely, or to a large extent, at CERN:

Theoretical Physics Department, CERN, 1211 Geneva 23, Switzerland

Any article authored by Staff, Fellows, Emeriti or Scientific Associates in TH should have a CERN-TH preprint number. It can be obtained using the following application form (in case of problems contact the TH preprint admin ). You should ask for a preprint number only when your article is close to completion.  Do not forget to include your generated CERN-TH preprint number on the first page of your paper.

In exceptional cases, the TH department will also consider requests for preprint number or affiliation from long-term visitors (if a substantial part of the research was done at CERN). Please contact TH preprint Admin for such requests.

TH Staff members will always be happy to discuss the content or presentation of a paper, but their formal approval is not required. TH preprints are required to be written in good English (British spelling).

The Theoretical Physics Department has no budget to cover publication or reprint charges, however CERN does have an agreement with most journals that CERN articles are published as open access.

Note : For authors that want to acknowledge the department, find here some suggestions - feel free to adapt to your case:

"... acknowledges CERN TH Department for hospitality while this research was being carried out."
"The authors acknowledge the use of computing resources made available by CERN to conduct the research reported in this work.”