Measurements ofdpbackward elastic scattering at 3.43, 4.50, 5.75, and 6.60GeVcincident deuteron momentum

Abstract

Differential cross sections for $\mathrm{dp}$ elastic scattering from 60° to 175° center of momentum (c.m.) were measured at 3.43, 4.50, 5.75, and 6.60 $\frac{\mathrm{GeV}}{c}$ incident deuteron momentum. The measurements were made with a two-arm magnetic spectrometer, making use of multiwire proportional chamber detectors. The deuterons were accelerated at the Bevatron of the Lawrence Berkeley Laboratory. Data are compared with predictions of the baryon-pickup model and the one-pion-exchange model. The backward dip at 180° c.m. for 4.5 $\frac{\mathrm{GeV}}{c}$, predicted by Craigie and Wilkin using the one-pion-exchange model, is not observed, but reasonable fits to the momentum variation and angular distributions are found. When the data are plotted against the variable $\Delta$ of the baryon-pickup model, the $s$ dependence is greatly reduced.