The direct particle decay of the isoscalar giant dipole resonance (ISGDR) has been studied in Pb-208 using the (alpha,alpha'p) and (alpha,alpha'n) reactions at a bombarding energy of 200 MeV. The direct-decay channels of proton and neutron emissions were observed in coincidence with the scattered a-particles in order to study the population of proton-hole states in Tl-207 and neutron-hole states in Pb-207. The results of the partial and total branching ratios allowed us to test recently performed continuum-RPA (CRPA) calculations for the ISGDR and thereby to learn about its microscopic structure.
|Number of pages||8|
|Journal||Nuclear Physics A|
|Publication status||Published - 9-Feb-2004|
|Event||International Conference on Collective Motion in Nuclei under Extreme Conditions (COMEX 1) - , France|
Duration: 10-Jun-2003 → 13-Jun-2003
- INELASTIC ALPHA-SCATTERING
- PROTON EXCITATION