Study of bound states in 12Be through low-energy 11Be(d,p)-transfer reactions

TL;DR

This study investigates the bound states of 12Be using a transfer reaction experiment with 11Be beams, detecting gamma rays and protons to identify states and determine spectroscopic factors, advancing understanding of neutron-rich beryllium isotopes.

Contribution

It provides new experimental data on 12Be bound states, including differential cross sections and spectroscopic factors, through a detailed transfer reaction analysis with gamma-ray detection.

Findings

Identified four known bound states in 12Be.

Measured differential cross sections over a large angular range.

Determined spectroscopic factors and compared with previous results.

Abstract

The bound states of 12Be have been studied through a 11Be(d,p)12Be transfer reaction experiment in inverse kinematics. A 2.8 MeV/u beam of 11Be was produced using the REX-ISOLDE facility at CERN. The outgoing protons were detected with the T-REX silicon detector array. The MINIBALL germanium array was used to detect gamma rays from the excited states in 12Be. The gamma-ray detection enabled a clear identification of the four known bound states in 12Be, and each of the states has been studied individually. Differential cross sections over a large angular range have been extracted. Spectroscopic factors for each of the states have been determined from DWBA calculations and have been compared to previous experimental and theoretical results.