Center-of-mass effects on the quasihole spectroscopic factors in the {sup 16}O(e,e{sup {prime}}p) reaction

Journal Article · Fri May 01 04:00:00 EDT 1998 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.57.2308· OSTI ID:627927

Van Neck, D; Waroquier, M ^[1]; Dieperink, A E ^[2]; Pieper, S C ^[3]; Pandharipande, V R ^[4]

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1. Department of Subatomic and Radiation Physics, University of Gent, Proeftuinstraat 86, B-9000Gent (Belgium)
2. Kernfysisch Versneller Instituut, Zernikelaan 25, 9747AA Groningen (The Netherlands)
3. Physics Division, Argonne National Laboratory, Argonne, Illinois60439 (United States)
4. Department of Physics, University of Illinois at Urbana-Champaign, 1110 West Green Street, Urbana, Illinois61801 (United States)

The spectroscopic factors for the low-lying quasihole states observed in the {sup 16}O(e,e{sup {prime}}p){sup 15}N 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{percent} 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. {copyright} {ital 1998} {ital The American Physical Society}

• OSTI ID: 627927
• Journal Information: Physical Review, C, Journal Name: Physical Review, C Journal Issue: 5 Vol. 57; ISSN PRVCAN; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CENTER-OF-MASS SYSTEM
ELECTRON REACTIONS
HARMONIC OSCILLATORS
KNOCK-OUT REACTIONS
MONTE CARLO METHOD
OXYGEN 16 TARGET
SPECTROSCOPIC FACTORS
VARIATIONAL METHODS
WAVE FUNCTIONS