Particlesymbolrest energy in MeV electron e 0.5109989 muon 105.658357 neutral pion 0 134.9766 charged pion 139.57018 proton p 938.27200 neutron.
Particle RANGE Through Material and Particle Lifetimes Dan Claes CROP Fall 2006 Workshop Saturday, October 14, 2006.
Solid Target R&D Programme Colliding the proton beam with a dense target is currently the only known way to produce enough muons for the neutrino factory.