Unbound exotic nuclei studied via projectile fragmentation reactions
INFN, Sezione di Pisa and Dipartimento di Fisica, Università di Pisa, Largo Pontecorvo 3, 56127, Pisa, Italy
* e-mail: email@example.com
Accepted: 29 March 2005
Published online: 17 May 2005
We present a time-dependent model for the excitation of a nucleon from a bound state to a continuum resonant state in the neutron-core potential. The final state is described by an optical model S-matrix so that overlapping resonances of any energy as well as deeply bound initial states can be considered. Due to the coupling between initial and final states the neutron-core free particle phase shifts are modified, in the exit channel, by a small additional phase. The model allows to extract structure information from data obtained in projectile fragmentation reactions of a borromean nucleus on a light target. Some results relative to the study of 13Be are presented.
PACS: 25.60.-t Reactions induced by unstable nuclei – / 21.60.-n Nuclear structure models and methods –
© Società Italiana di Fisica and Springer-Verlag, 2005