Are spectroscopic factors from transfer reactions consistent with asymptotic normalization coefficients?

2007/01/24 by D. Y. Pang, F. M. Nunes, A. M. Mukhamedzhanov
Engineering · Mathematics · Physics and Astronomy · #Atomic and Molecular Physics #Atomic physics #Combinatorics #Computer science #Mathematics #Normalization (sociology) #Nuclear physics research studies #Nuclear reactor physics and engineering #Order (exchange) #Physics #Transfer (computing) #nucl-th

paper · pdf · doi:10.1103/physrevc.75.024601

published as Phys.Rev.C75:024601,2007 · 15 pages, 12 figures, Phys. Rev. C (in press)

arxiv created 2007/01/24 · openalex publication_date 2007/02/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

It is extremely important to devise a reliable method to extract spectroscopic factors from transfer cross sections. We analyze the standard DWBA procedure and combine it with the asymptotic normalization coefficient, extracted from an independent data set. We find that the single particle parameters used in the past generate inconsistent asymptotic normalization coefficients. In order to obtain a consistent spectroscopic factor, nonstandard parameters for the single particle overlap functions can be used but, as a consequence, often reduced spectroscopic strengths emerge. Different choices of optical potentials and higher order effects in the reaction model are also studied. Our test cases consist of ¹⁴C(d,p)¹⁵C(g.s.) at E_d^lab=14 MeV, ¹⁶O(d,p)¹⁷O(g.s.) at E_d^lab=15 MeV and ⁴⁰Ca(d,p)⁴¹Ca(g.s.) at E_d^lab=11 MeV. We underline the importance of performing experiments specifically designed to extract asymptotic normalization coefficients for these systems.

Citations

• Reaction models to probe the structure of light exotic nuclei
• One-neutron removal reactions on light neutron-rich nuclei
• Reduced neutron spectroscopic factors when using potential geometries constrained by Hartree-Fock calculations