Structure of 13Be probed via quasi-free scattering

TL;DR

This paper investigates the structure of 13Be using quasi-free scattering at high energy, comparing experimental data with theoretical models to understand the role of neutron p-wave orbitals.

Contribution

It provides new insights into 13Be's structure by combining inverse kinematics experiments with Transfer-to-the-Continuum calculations based on 14Be wave functions.

Findings

Neutron p-wave orbital is crucial for low-energy spectrum interpretation.

Experimental spectrum matches theoretical models involving 14Be ground-state overlaps.

Highlights the importance of three-body models in unbound nuclear states.

Abstract

We present an investigation of the structure of 13Be obtained via a kinematically complete measurement of the (p; pn) reaction in inverse kinematics at 265 MeV/nucleon. The relative energy spectrum of 13Be is compared to Transfer-to-the-Continuum calculations which use as structure inputs the overlaps of the 14Be ground-state wave function, computed in a three-body model, with the unbound states of the 13Be residual nucleus. The key role of neutron p-wave orbital in the interpretation of the low-relative-energy part of the spectrum is discussed.