HEP experiments are now done by large collaborations (e.g. ATLAS and CMS with almost 2000 physicists from 60 countries). Inside such collaborations there is an internal review before any paper gets sent for publication (done by a small group of between 5-10). Paper, in its almost final form, is then sent to the whole collaboration for review. For CERN experiments, a referee – external to the collaboration – validates the paper from a scientific and editorial point of view. This review process involves so many people that there is little ‘added value’ given by publishers’ peer review.