The collision induced by the three Beryllium isotopes, Be-9,Be-10,Be-11, on a Zn-64 target were investigated at E-c.m. approximate to 1.4 the Coulomb barrier. The experiments with the radioactive Be-10,Be-11 beams were performed at the Rex-Isolde facility at CERN. In the case of 9'1 Be, elastic scattering angular distributions were measured whereas, in the Be-11 case, the quasielastic scattering angular distribution was obtained. A strong damping of the quasielastic cross-section was observed in the Be-11 case, in the angular range around the Coulomb-nuclear interference peak. In this latter case a large totalreaction cross-section is found. Such a cross-section is more than a factor of two larger than the ones extracted in the reactions induced by the non-halo Beryllium isotopes. A large contribution to the total-reaction cross-section in the Be-11 case could be attributed to transfer and/or break-up events.
Reactions induced by Be-11 beam at Rex-Isolde
Amorini F.;Figuera P.;Lattuada M.;Musumarra A;Papa M.;Pellegriti M. G.;Rizzo F.;Strano E.;Torresi D.;Acosta L.;
2011-01-01
Abstract
The collision induced by the three Beryllium isotopes, Be-9,Be-10,Be-11, on a Zn-64 target were investigated at E-c.m. approximate to 1.4 the Coulomb barrier. The experiments with the radioactive Be-10,Be-11 beams were performed at the Rex-Isolde facility at CERN. In the case of 9'1 Be, elastic scattering angular distributions were measured whereas, in the Be-11 case, the quasielastic scattering angular distribution was obtained. A strong damping of the quasielastic cross-section was observed in the Be-11 case, in the angular range around the Coulomb-nuclear interference peak. In this latter case a large totalreaction cross-section is found. Such a cross-section is more than a factor of two larger than the ones extracted in the reactions induced by the non-halo Beryllium isotopes. A large contribution to the total-reaction cross-section in the Be-11 case could be attributed to transfer and/or break-up events.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
