1998/04/28 by D. Van Neck, Dimitri Van Neck, Michel Waroquier +5 · 2 citations
Physics and Astronomy · #Advanced Chemical Physics Studies #Nuclear physics research studies #Quantum Chromodynamics and Particle Interactions #nucl-th
paper · pdf · doi:10.1103/physrevc.57.2308
published as Phys.Rev.C57:2308-2315,1998 · 14 pages, no figures, uses Revtex, to be published in Phys. Rev. C 58 (1998)
arxiv created 1998/04/28 · openalex publication_date 1998/05/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The spectroscopic factors for the low-lying quasihole states observed in the 16O(e,e^\ensuremath'p)15N reaction are reinvestigated with a variational Monte Carlo calculation for the structure of the initial and final nucleus. A computational error in a previous report is rectified. It is shown that a proper treatment of center-of-mass motion does not lead to a reduction of the spectroscopic factor for p-shell quasihole states, but rather to a 7% enhancement. This is in agreement with analytical results obtained in the harmonic oscillator model. The center-of-mass effect worsens the discrepancy between present theoretical models and the experimentally observed single-particle strength. We discuss the present status of this problem, including some other mechanisms that may be relevant in this respect.