Differential and total cross sections for the exclusive breakup of a Li-6 projectile into alpha+d and alpha+p fragments from a Pb-208 target were measured at several energies around the Coulomb barrier. The alpha+d exclusive cross sections are well reproduced by full continuum discretized coupled channel calculations with excitation up to 11.5 MeV of the alpha+d (Li-6*) system. The total exclusive cross sections are much smaller than the inclusive ones for the production of alpha particles. This large difference gives very clear experimental evidence for the stripping breakup mechanism. Such a process, relevant in the reaction dynamics even at the Coulomb barrier with loosely bound projectiles such as Li-6, needs to be carefully considered and described theoretically.

Exclusive breakup of Li-6 by Pb-208 at Coulomb barrier energies

BRONDI, AUGUSTO;MORO, RENATA EMILIA MARIA;LA RANA, GIOVANNI;VARDACI, EMANUELE;INGLIMA, GIOVANNI;LA COMMARA, MARCO;SANDOLI, MARIO;
2003

Abstract

Differential and total cross sections for the exclusive breakup of a Li-6 projectile into alpha+d and alpha+p fragments from a Pb-208 target were measured at several energies around the Coulomb barrier. The alpha+d exclusive cross sections are well reproduced by full continuum discretized coupled channel calculations with excitation up to 11.5 MeV of the alpha+d (Li-6*) system. The total exclusive cross sections are much smaller than the inclusive ones for the production of alpha particles. This large difference gives very clear experimental evidence for the stripping breakup mechanism. Such a process, relevant in the reaction dynamics even at the Coulomb barrier with loosely bound projectiles such as Li-6, needs to be carefully considered and described theoretically.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/148569
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