Simulating core excitation in breakup reactions of halo nuclei using an effective three-body force
Abstract
We extend our previous calculation of the breakup of 11Be using Halo Effective Field Theory and the Dynamical Eikonal Approximation to include an effective 10Be-n-target force. The force is constructed to account for the virtual excitation of 10Be to its low-lying 2+ excited state. In the case of breakup on a 12C target this improves the description of the neutron-energy and angular spectra, especially in the vicinity of the 11Be 5/2+ state. By fine-tuning the range parameters of the three-body force, a reasonable description of data in the region of the 3/2+ 11Be state can also be obtained. This sensitivity to the three-body force's range results from the structure of the overlap integral that governs the 11Be s-to-d-state transitions induced by the three-body force.
Keywords
Cite
@article{arxiv.2008.05898,
title = {Simulating core excitation in breakup reactions of halo nuclei using an effective three-body force},
author = {P. Capel and D. R. Phillips and H. -W. Hammer},
journal= {arXiv preprint arXiv:2008.05898},
year = {2021}
}
Comments
Accepted for publication within Physics Letters B; 9 pages, 4 figures