Study of the core-excited Fano Resonances in the neutron-rich C-isotopes

TL;DR

This paper investigates Fano Resonances in neutron-rich carbon isotopes, explaining their asymmetric structures through a theoretical model that couples elastic and core-excited channels, with results aligning qualitatively with experiments.

Contribution

It introduces a QPC model explanation for Fano Resonances in light exotic nuclei, specifically in C isotopes, highlighting the coupling mechanism.

Findings

Qualitative agreement between theory and experiment for 15C

Identification of Fano Resonances as coupling effects

Comparison of theoretical spectra for 15C, 17C, 19C

Abstract

Fano Resonances are a new continuum excitation mode in light exotic nuclei. By the QPC model we explain these sharp and asymmetric structures as due to the coupling of a single particle elastic channel to the closed core-excited channels. Theoretical model calculations are compared for 15C, 17C and 19C. The theoretical results for 15C are in qualitative agreement with the experimental spectrum.