Comparison of transfer-to-continuum and eikonal models of projectile fragmentation reactions - art. no. 044604

Spectroscopic properties of nuclei are accessible with projectile fragmenta tion reactions, but approximations made in the reaction theory can limit th e accuracy of the determinations. We examine here two models that have rath er different approximations for the nucleon wave function. the target inter action, and the treatment of the finite duration of the reaction. The nucle on-target interaction is treated differently in the eikonal and the transfe r-to-continuum model. bur the differences are more significant for light ta rgets. We propose a new parametrization with that in mind. We also propose a new formula to calculate the amplitudes that combines the better treatmen t of the wave function in the eikonal model with the better treatment of th e target interaction in the transfer-to-continuum model.