> journals, which do the usual peer review.

They don't though! They farm it out to expert physicists, which in the case of CERN research almost certainly also work at CERN.

> Few articles that I've myself per-reviewed were not from my own experiment.

But were they from CERN?

> Do you have example

This was a few years ago, it was a comment here on HN, but it would be hard to dig it up without an AI reading through everything.