Cross sections for theC12(π±, πN)C11reactions from 30 to 100 MeV

Abstract
Cross sections for the primary pion beam monitor reactions C12(π±, πN)C11 (20.4 min) have been measured between 30 and 100 MeV by activation techniques. These cross sections are consistently lower, but within the uncertainties of our previously determined values. The experimental uncertainties of these new measurements are considerably smaller.