XD yes, there are in the pipe, jets of air that cooled the tubes, I do not know very well why they did it here, it seems that the particles travel better at low temperatures do not know why, they are poorly informed about this thing
It's because they use electromagnets to accelerate the particles, and for them to be at top efficiency they must be superconductors, which means they have to be very cold. To put it simply, the colder something is, the less electrical resistance.