We changed our privacy policy. Read more.

New answers tagged


The LHC has eight accelerating structures (radio frequency (RF) cavities) per beam grouped in four cryomodules. The acceleration from 450 GeV to 6500 GeV takes about 30 minutes. In this time the beam travels around the ring for approximately 20 million times. Here is a picture of one of LHC RF cavities cryomodule without the external shielding, where you can ...


MET is not just the sum of the four-momentum of the neutrinos, no. It is opposite of the sum of the three-momenta of the neutrinos (and potentially any other invisible particles), projected onto the plane transverse to the beam direction. It is impossible to determine the sum of the energy of the neutrinos or their momentum in a direction parallel to the ...

Top 50 recent answers are included