Momentum Distribution of a Fragment and Nucleon Removal CrossSection in the Reaction of Halo Nuclei

Recently the research on the halo structure of drip-line nucleihas shown some interesting properties of the existence of one ormore halo nucleons. In the framework of few-body Glauber model, the momentum distribution of a fragment and nucleon removal cross section in the reaction of halo nuclei is presented and extendedto nuclei having more than one halo nucleons. The reaction mechanism is treated with and without taking account of the final-state interaction. The wave function of removal halonucleons in the continuum state is modified by imposing anorthogonal condition to the bound state. An analytical expressionof the longitudinal momentum distribution of the fragment isderived when the bound state wave function of halo nucleons istaken as a Gaussian-type function. This is useful in the furtherinvestigation on the structure of halo nuclei.