Absorption of Positive Pions by Deuterium at 76 and 94 Mev

The absorption of positive pions by liquid deuterium has been studied with scintillation counters, using a collimated pion beam from the Chicago synchrocyclotron. The differential cross sections for the production of protons at angles of 35^∘{}, 45^∘{}, 60^∘{}, and 90^∘{} are 1.189±{}0.076, 0.926±{}0.058, 0.643±{}0.061, and 0.442±{}0.052 millibarns per steradian at 94 Mev and 1.010±{}0.102, 0.718±{}0.081, 0.431±{}0.073, and 0.300±{}0.058 millibarns per steradian at 76 Mev in the center-of-mass system. The angular distribution can be represented by a+cos²θ with the following values of a:0.268±0.089 at 76 Mev and 0.388±{}0.082 at 94 Mev. The total cross sections are 7.38±{}1.21 millibarns at 76 Mev and 9.70±{}1.03 millibarns at 94 Mev.