21. Starting in 1969, deep inelastic scattering experiments at SLAC revealed surprising experimental evidence for particles inside of protons. 22. NA2 which was a single magnet spectrometer to measure the forward production products of deep inelastic scattering by muons. 23. Inelastic scattering heats up a molecule, so that in a second scattering the probability of electron emission is increased.24. This inelastic scattering process is described as a phonon of energy ?E = [ ? and wavevector "'q " '. 25. The total cross section in inelastic scattering is the sum of the total cross sections of all allowed individual processes. 26. Inelastic scattering is useful for probing such electron excitation, but not in determining the distribution of atoms within the crystal.27. It relies on inelastic scattering , or Raman scattering, of monochromatic light, usually from a laser in the near ultraviolet range. 28. Evidence for the existence of quarks comes from deep inelastic scattering : firing electrons at jet of particles is emitted. 29. Coherence then corresponds to a decrease in the occupation numbers of phonon modes and a decreased rate of inelastic scattering . 30. This inelastic scattering suggests that the charge in the proton is not uniform but split among smaller charged particles : quarks.
