2004/06/30 by S. Typel, G. Baur · 1 citation
Physics and Astronomy · #Nuclear Physics and Applications #Nuclear physics research studies #Quantum Chromodynamics and Particle Interactions #nucl-ex #nucl-th
paper · pdf · doi:10.1103/physrevlett.93.142502
published as Phys.Rev.Lett. 93 (2004) 142502 · 4 pages, 1 figure (modified), additional table, extended discussion of example, accepted for publication in Phys. Rev. Lett
arxiv created 2004/08/24 · openalex publication_date 2004/09/29 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We study low-lying multipole strength in neutron-halo nuclei. The strength depends only on a few low-energy constants: the neutron separation energy, the asymptotic normalization coefficient of the bound-state wave function, and the scattering length that contains the information on the interaction in the continuum. The shape of the transition probability shows a characteristic dependence on few scaling parameters and the angular momenta. The total E1 strength is related to the root-mean-square radius of the neutron wave function in the ground state and shows corresponding scaling properties. We apply our approach to the E1 strength distribution of 11Be.