Analysis of excited states in ¹³C and their cluster structure

Abstract

An accurate understanding of the spectroscopy of 13C is key to understand clustering phenomena in light nuclear systems. In this nucleus, many theoretical models predict the existence of α-cluster configurations, stabilized by the presence of an extra neutron. Despite of its importance, the spectroscopy of13C is still affected by ambiguities, demanding for new data against which benchmarking the models. We improve the knowledge on the 13C level scheme by means of a comprehensive R-matrix analysis of several experimental data sets. Our new spectroscopic information contributes to solve existing ambiguities in 13C structure and will serve a valid benchmark for theoretical models attempting to describe clustering in neutron rich systems.