Dissecting reaction calculations using Halo EFT and ab initio input
Abstract
We present a description of the break-up of halo nuclei in peripheral nuclear reactions by coupling a model of the projectile motivated by Halo Effective Field Theory with a fully dynamical treatment of the reaction using the Dynamical Eikonal Approximation. Our description of the halo system reproduces its long-range properties, i.e., binding energy and asymptotic normalization coefficients of bound states and phase shifts of continuum states. As an application we consider the break-up of 11Be in collisions on Pb and C targets. Taking the input for our Halo-EFT-inspired description of 11Be from a recent ab initio calculation of that system yields a good description of the Coulomb-dominated breakup on Pb at energies up to about 2 MeV, with the result essentially independent of the short-distance part of the halo wave function. However, the nuclear dominated break-up on C is more sensitive to short-range physics. The role of spectroscopic factors and possible extensions of our approach to include additional short-range mechanisms are also discussed.
Cite
@article{arxiv.1806.02712,
title = {Dissecting reaction calculations using Halo EFT and ab initio input},
author = {P. Capel and D. R. Phillips and H. -W. Hammer},
journal= {arXiv preprint arXiv:1806.02712},
year = {2021}
}
Comments
Published within Phys. Rev. C. We have corrected a few typos, most importantly, the depth V_{s1/2}^{(2)} in Table I for the sole cutoff \sigma=2 fm has been corrected to its actual value +3MeV fm^{-2}