The B-11(Li-7,Be-7)Be-11 reaction at 57 MeV incident energy was used to explore the Be-11 excitation energy spectrum at forward angles. Angular distributions were extracted for the transitions to the ground and to the states of Be-11 at excitation energies of E*=0.32, 1.78, 2.69, 3.41, 3.89, 3.96, 6.05 MeV combined with the ground and the first excited state of Be-7. Also the SDR [1][2] oscillation mode was observed at E*=9.5 MeV and FWHM approximate to 9 MeV and a new peak at E*=6.05 MeV and FWHM approximate to 0.3 MeV was observed. QRPA calculations in the G-matrix representation are in progress in order to describe the continuum structure of Be-11. DWBA calculations have been started to evaluate transferred angular momenta both in the one step and in the two steps dynamical framework.
Excited states of Be-11
FOTI, Antonino;
2000-01-01
Abstract
The B-11(Li-7,Be-7)Be-11 reaction at 57 MeV incident energy was used to explore the Be-11 excitation energy spectrum at forward angles. Angular distributions were extracted for the transitions to the ground and to the states of Be-11 at excitation energies of E*=0.32, 1.78, 2.69, 3.41, 3.89, 3.96, 6.05 MeV combined with the ground and the first excited state of Be-7. Also the SDR [1][2] oscillation mode was observed at E*=9.5 MeV and FWHM approximate to 9 MeV and a new peak at E*=6.05 MeV and FWHM approximate to 0.3 MeV was observed. QRPA calculations in the G-matrix representation are in progress in order to describe the continuum structure of Be-11. DWBA calculations have been started to evaluate transferred angular momenta both in the one step and in the two steps dynamical framework.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
