LHC portal

1) Ha-ha. I've found the bug. The interval between the grid lines on the graphs is not constant, it's not 45 pixels/0.05 frev, it's 45 to 46 pixels. On the graph with ~50 Hz hum there're 46 pixels between 0.1 and 0.15 frev, 0.2--0.25 frev, 0.35--0.4 frev, 0.45--0.5 frev. There're 454+-1 (that is +-0...

1) First of all it'd be good to understand what signal that hump is in. As far as I understand they measure (how?) the transverse position of the beam at one fixed point in LHC ring, take it as a function of revolution number, and then take Fourier transform of it. The "tune" seems to be the number ...

In fact collision energy is not a matter of speed, it's rather matter of energies and momenta. Every ultrarelativistic particle travels almost at speed of light. What people want from collisions is to put maximum energy into the rest energy of residues (that is their mass). That in turn depends on t...