Absolute differential cross-section measurements for p+p→π++d reaction at 500-800 MeV

Absolute differential cross sections for the reaction p+p→π++d were measured at 491.9, 575.5, 641.6, 728.2 and 793.0 MeV. These measurements covered an angular range from 50deg to 120deg in c.m. except for the 491.9 MeV case, where the angular range was ≅ 70deg-≅ 105deg in c.m. The beam intensity was measured by counting the individual beam particles using a scintillator beam-counting system. The typical accuracy for the beam counting was ≅ 0.1%. The uncertainty in the target length was about half a percent or lower. The overall uncertainty in the differential cross-section measurement was 1.5-2.5%, including the total systematic and statistical uncertainties. The results were compared with the existing data. (orig.)