"Simulating core excitation in breakup reactions of halo nuclei using a" by P. Capel, D. R. Phillips et al.
 

Title

Simulating core excitation in breakup reactions of halo nuclei using an effective three-body force

Document Type

Article

Publication Date

2-10-2022

Keywords

Core excitation, Halo Effective Field Theory, Nuclear breakup, One-neutron halo nuclei, 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 [Formula presented] state. By fine-tuning the range parameters of the three-body force, a reasonable description of data in the region of the [Formula presented] 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 which it induces.

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