Eur. Phys. J. A (2005) 25: 293-294
https://doi.org/10.1140/epjad/i2005-06-002-8

ENAM 2004

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: bonac@df.unipi.it

Received: 1 February 2005
Accepted: 29 March 2005
Published online: 17 May 2005

Abstract

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.