3. (8 pts) At http : //pdg. Ibl . . pdf one can find plots of total cross sections for pp, pd, 71), rd, Kp and Kd scattering (where d is the deuteron). Examine Figs. 41.11 through 41.15 and focus, for simplicity, on the momentum range 10 GeV < Plab < 300 GeV, where these cross sections are rather slowly varying. What range of de Broglie wavelengths (for the projectile) does this range of mo- menta correspond to? Can you construct a simple explanation for the ratios of cross sections involving different targets or different projectiles, based on the quark model of hadrons plus an understanding of the scale of de Broglie wavelengths? (I.e., given the scale of the spa- tial resolution, what are the relevant degrees of freedom?) Can you explain the ratios of total cross sections for protons on deuterons as compared to protons on protons (Opd/opp), pions on protons compared to protons on protons (07p/Cpp), pions on deuterons compared to pions on protons and kaons on deuterons compared to kaons on protons )? (One significant figure is sufficient.)