Shell structure and few-nucleon removal in intranuclear cascade

11th International Spring Seminar on Nuclear Physics: Shell Model and Nuclear Structure – achievements of the past two decades

Mancusi, D.^1 ; Boudard, A.^1 ; Carbonell, J.^1 ; Cugnon, J.^2 ; David, J.-C.^1 ; Leray, S.^1

CEA, Centre de Saclay, IRFU/Service de Physique Nucléaire, Gif-sur-Yvette

F-91191, France^1

University of Liège, AGO Department, allée du 6 Août 17, bât. B5, Liège 1

B-4000, Belgium^2

关键词: Energy density;    High energy proton beams;    Intranuclear cascade;    Intranuclear cascade model;    Neutron removal;    Shell models;    Shell structure;    Stable nuclei;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/580/1/012024/pdf
DOI  :  10.1088/1742-6596/580/1/012024

来源: IOP

【 摘 要 】

It is well known that intranuclear-cascade models generally overestimate the cross sections for one-proton removal from heavy, stable nuclei by a high-energy proton beam, but they yield reasonable predictions for one-neutron removal from the same nuclei and for one- nucleon removal from light targets. We use simple shell-model calculations to investigate the reasons of this deficiency. We find that a correct description of the neutron skin and of the energy density in the nuclear surface is crucial for the aforementioned observables. Neither ingredient is sufficient if taken separately.