dorsal/arxiv
View SchemaCenter-of-mass effects on the quasi-hole spectroscopic factors in the 16O(e,e'p) reaction
| Authors | D. Van Neck, M. Waroquier, A. E. L. Dieperink, Steven C. Pieper, V. R. Pandharipande |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9804067 |
| URL | https://arxiv.org/abs/nucl-th/9804067 |
| DOI | 10.1103/PhysRevC.57.2308 |
| Journal | Phys.Rev.C57:2308-2315,1998 |
Abstract
The spectroscopic factors for the low-lying quasi-hole states observed in the 16O(e,e'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 quasi-hole 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.
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"abstract": "The spectroscopic factors for the low-lying quasi-hole states observed in the\n16O(e,e\u0027p)15N reaction are reinvestigated with a variational Monte Carlo\ncalculation for the structure of the initial and final nucleus. A computational\nerror in a previous report is rectified. It is shown that a proper treatment of\ncenter-of-mass motion does not lead to a reduction of the spectroscopic factor\nfor $p$-shell quasi-hole states, but rather to a 7% enhancement. This is in\nagreement with analytical results obtained in the harmonic oscillator model.\nThe center-of-mass effect worsens the discrepancy between present theoretical\nmodels and the experimentally observed single-particle strength. We discuss the\npresent status of this problem, including some other mechanisms that may be\nrelevant in this respect.",
"arxiv_id": "nucl-th/9804067",
"authors": [
"D. Van Neck",
"M. Waroquier",
"A. E. L. Dieperink",
"Steven C. Pieper",
"V. R. Pandharipande"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.57.2308",
"journal_ref": "Phys.Rev.C57:2308-2315,1998",
"title": "Center-of-mass effects on the quasi-hole spectroscopic factors in the 16O(e,e\u0027p) reaction",
"url": "https://arxiv.org/abs/nucl-th/9804067"
},
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