Hello! I read several times that those at CERN observe a new particle with a precision of 3-3.5 sigma and overnight (more or less) hundreds of papers in theoretical physics appear explaining the role of that particle and all its physics implication and after a while CERN announces that there was actually no particle discovered and all these publications become meaningless. I was wondering how is this possible, like how can so many scientist can come up with a theory (and I assume they are solid both from a mathematical and physical point of view) about something that (in the end) doesn't even exist? Like isn't a flaw or something in the approach they use if they can so easily come up with something to fit the observations, even if it is wrong? Or how does this work?