Coulomb breakup of the Borromean nucleus22C

11th International Conference on Clustering Aspects of Nuclear Structure and Dynamics

Pinilla, E.C.^1 ; Descouvemont, P.^2

Universidad Nacional de Colombia, Sede Bogotá, Facultad de Ciencias, Departamento de Física, Grupo de Física Nuclear, Carrera 45 N 26-85, Bogotá D. C., Colombia^1

Physique Nucléaire Théeorique et Physique Mathéematique, Universitée Libre de Bruxelles (ULB), Brussels, Belgium^2

关键词: Breakup cross sections;    Continuum state;    Coulomb breakup;    Eikonal models;    Ground state properties;    Narrow resonances;    Resonance energies;    Scattering length;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/863/1/012031/pdf
DOI  :  10.1088/1742-6596/863/1/012031

来源: IOP

【 摘 要 】

We study the Coulomb breakup cross section of the22C nucleus and its relation with three-body resonances and ground state properties. Cross sections are computed with a Coulomb corrected four-body eikonal model and they are constructed by fixing the continuum state and varying the ground state of22C. These states are calculated by using20C-n potentials that provide different scattering lengths and resonance energies, of a presumed virtual state and of a d resonance in21C. We find that the breakup cross section is strongly dependent on the ground state properties and we predict the existence of a 2+narrow resonance in22C.