2011/03/31 by H.‐W. Hammer, H. -W. Hammer, Daniel R. Phillips +1 · 83 citations
Physics and Astronomy · #Advanced Chemical Physics Studies #Atomic and Molecular Physics #Atomic physics #Beryllium #Computation #Coulomb #Effective nuclear charge #Electric field #Halo #Halo nucleus #Neutron #Nuclear physics #Nuclear physics research studies #Order (exchange) #Physics #Quantum electrodynamics #Quantum mechanics #Scattering #nucl-ex #nucl-th
paper · pdf · doi:10.1016/j.nuclphysa.2011.06.028
published in Nuclear Physics A 865(1), 17-42 (Elsevier BV) · 27 pages, 8 figures, final version
openalex publication_date 2011/07/06 · arxiv created 2012/08/15 · arxiv updated 2012/08/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We compute E1 transitions and electric radii in the Beryllium-11 nucleus using an effective field theory that exploits the separation of scales in this halo system. We fix the leading-order parameters of the EFT from measured data on the 1/2+ and 1/2- levels in Be-11 and the B(E1) strength for the transition between them. We then obtain predictions for the B(E1) strength for Coulomb dissociation of the Be-11 nucleus to the continuum. We also compute the charge radii of the 1/2+ and 1/2- states. Agreement with experiment within the expected accuracy of a leading-order computation in this EFT is obtained. We also discuss how next-to-leading-order (NLO) corrections involving both s-wave and p-wave neutron-Be-10 interactions affect our results, and display the NLO predictions for quantities which are free of additional short-distance operators at this order. Information on neutron-Be-10 scattering in the relevant channels is inferred.