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

Physics Letters B

H.-W. Hammer¹  D.R. Phillips²  P. Capel³ 

[1] Corresponding author at: Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, Johann-Joachim-Becher Weg 45, D-55099 Mainz, Germany.;Physique Nucléaire et Physique Quantique (C.P. 229), Université libre de Bruxelles (ULB), 50 avenue F.D. Roosevelt, B-1050 Brussels, Belgium;Institut für Kernphysik, Johannes Gutenberg-Universität Mainz, Johann-Joachim-Becher Weg 45, D-55099 Mainz, Germany;

关键词: Halo Effective Field Theory;    One-neutron halo nuclei;    Nuclear breakup;    Core excitation;    Three-body force;   

DOI  :  

来源: DOAJ

【 摘 要 】

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 52+ state. By fine-tuning the range parameters of the three-body force, a reasonable description of data in the region of the 32+ 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.

【 授权许可】

Unknown