Sorry, I don't mean the emission chamber. The particles collide somewhere, presumably this happens at the center of the detector. What is that space? Is it a vacuum? Are there still stray fields from the accelerator ring? Does it matter if this is not a vacuum or if there are electric and...
What is inside the detector in a particle accelerator??
We need E and B fields to steer and focus beams in a particle accelerator, but all the calculations we do in QFT assume (apart from the colliding particles) that we are in the vacuum state. Does this mean there are no fields at the point...