Abstract
Angular distributions for pion single charge exchange to the isobaric analog state were measured for and at =48 MeV. The cross sections on and exhibit a less deep minimum at zero degrees than was seen previously on . The large-angle cross sections are roughly equal to those for , while the 0° to 60° cross sections are approximately four times larger. The extrapolated zero-degree center-of-mass cross sections are 2.7±1.0 μb/sr for , 12±5 μb/sr for , and 110±25 μb/sr for , and the angle-integrated cross section for is 557±65 μb. The large back-angle cross sections for are attributed to strong quadrupole contributions to the isobaric analog state transition.
- Received 6 May 1985
DOI:https://doi.org/10.1103/PhysRevC.33.278
©1986 American Physical Society