Authors:	Capel, Pierre Phillips, Daniel R. Hammer, H.-W.
Title:	Simulating core excitation in breakup reactions of halo nuclei using an effective three-body force
Online publication date:	14-Apr-2023
Year of first publication:	2022
Language:	english
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 threebody force’s range results from the structure of the overlap integral that governs the 11Be s-to-d-state transitions which it induces.
DDC:	530 Physik 530 Physics
Institution:	Johannes Gutenberg-Universität Mainz
Department:	FB 08 Physik, Mathematik u. Informatik
Place:	Mainz
ROR:	https://ror.org/023b0x485
DOI:	http://doi.org/10.25358/openscience-8912
Version:	Published version
Publication type:	Zeitschriftenaufsatz
Document type specification:	Scientific article
License:	CC BY
Information on rights of use:	https://creativecommons.org/licenses/by/4.0/
Journal:	Physics letters : B 825
Pages or article number:	136847
Publisher:	Elsevier
Publisher place:	Amsterdam
Issue date:	2022
ISSN:	1873-2445
Publisher DOI:	10.1016/j.physletb.2021.136847
Appears in collections:	DFG-491381577-D