Abstract
Exclusive measurements of the reaction have been carried out at at CELSIUS using the PROMICE/WASA setup. Together with data obtained at lower energy, they point to a dominance of the Roper excitation in this process. From the observed interference of its decay routes and their energy-dependent relative branching ratio is determined.
- Received 30 January 2003
DOI:https://doi.org/10.1103/PhysRevC.67.052202
©2003 American Physical Society