Total and annihilation Kp cross sections from 100 to 500 MeV/c are reported, the first such measurements with good statistics in this momentum range. These cross sections are well represented by A + B / p , wherep is the incident antineutron momentum, and are in agreement with previous Fip and pn measurements. A comparison of these cross sections with phenomenological potential model calculations is good overall. However, the microscopic quark model gives unsatisfactory predictions.
The agreement between previous p;o annihilation cross sections and Fip cross sections above 300M e V / c is excellent. The total iip cross section is lower than the total pp cross section in this momenturn range. Both of these types of behavior are predicted by potential models. The anticipated availability of future pp data below 300 M e V / c should indicate whether these trends continue at lower momenta.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.