muon neutrino momentum distribution

Question

muon neutrino momentum distribution

I have read the public data of T2K ,KEK to find this subject, I'm curiously that it's coincides with my prediction perfectly: The neutrino get its momemtum by its effect-partner, which is obvious in the reactional formula, especialy that by me. You can find the figures Here ( htis link is a blog including the detialed idea) the first is the radium function of e, the second cut from paper from the lab, the third is the momemtum spectrum. Do any one find the simlar distribution of other particle? I just work on Hep just for a few months.

Answer 1

Do you understand how neutrino beams are made for such experiments?

The beam from some more mundane particle accelerator is used to direct high energy particles (often protons) into a target which generates a spray of assorted products containing many pions and kaons. This secondary beam is filtered and selected for momentum by passing it through collimators and dipole magnets; focused using a "horn"; and allowed to propogate down another beam-line where the hadrons decay.

The decay products include many neutrinos, and relativity means that most of them are going mostly in the direction of the final beam-line. Their momentum distribution is a function of the hadrons beam's momentum (which can be selected), the hadron beams compositions, the decay kinematics of pions and kaons, and the angle relative the deca beam-line at which you place your detector.

Finally, the momentum distribution of the neutrinos that react in your detector also has a factor due to the energy dependence of the neutrino interaction cross-section.