for 5. Consider the process of electron-neutrino scattering, vete → Vete, which the two lowest order Feynman diagrams ar
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for 5. Consider the process of electron-neutrino scattering, vete → Vete, which the two lowest order Feynman diagrams ar
for 5. Consider the process of electron-neutrino scattering, vete → Vete, which the two lowest order Feynman diagrams are e Ve 20 X X W Ve Ve Ve Denote the energy of the particles in their centre-of-mass frame by E. Using the fact that scattering cross-section has units of area, and considering the matrix element and the density-of-states factor, use dimensional analysis to derive how the scattering cross-section should scale with E for very small E. [10]
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