Abstract
Cross sections and analyzing powers have been measured for 800-MeV proton inelastic transitions to unnatural-parity states in . Data for the 15.11-MeV , state are well explained by a distorted-wave impulse-approximation calculation based on proton-neutron charge-exchange cross sections. Negative analyzing powers were observed for the first time at 800 MeV, for the 12.71-MeV , state. Values of appear to be characteristic of the isospin transfer, and support isospin assignments for states at 18.3 and 19.4 MeV.
- Received 28 February 1980
DOI:https://doi.org/10.1103/PhysRevLett.44.1189
©1980 American Physical Society