Academic papers are usually written by a small group. But I imagine for large collaborations like papers from LHC and similar you'd have to deal with some of the same issues any major org. It comes at you very quickly. Can you hold an important meeting on the day 2 people of 100 are away because it's a religious holiday? What do you do about the fact that the Ukrainian guy refuses to work until the Russian guy is kicked out of the team? And the research itself is of course interfacing with politics all the time whether they like it or not. Of course more in climate research or economics than in theoretical physics but it's still there.