Measurement of theπ−delastic differential scattering cross section for momenta from 343 to 637MeVc

The differential cross section for scattering of pions on deuterons was measured at LAMPF at laboratory momenta of 343, 441, 539, and 637 $\frac{\mathrm{MeV}}{c}$, using an $E-\Delta E$ method to identify the recoil deuterons. Angles ranged from 40° to 160° in the center of mass system. The momentum resolution was $\sigma =\pm 3.5\%$ and the angular resolution was ± 1.70° in the laboratory system. The experimental method is discussed, and results are presented and compared with other experimental data as well as with various theoretical calculations.