Deuteron-Deuteron Elastic Scattering at 2.2 and7.9 GeVc: Experimental Study

Differential scattering data have been obtained in bubble-chamber exposures and are compared with theoretical predictions using the Glauber multiple-scattering theory. The effect of the quadrupole deformation of the deuteron and the influence of the various orders of multiple scattering are put in evidence. Agreement between theoretical predictions and experiment is very good at the higher energy. At the lower energy, agreement is good only for momentum transfers below $0.2 {\left(\frac{\mathrm{GeV}}{c}\right)}^2$. Possible reasons for the disagreement above $0.2 {\left(\frac{\mathrm{GeV}}{c}\right)}^2$ are explored.