Center-of-mass effects on the quasi-hole spectroscopic factors in the 16O(e,e'p) reaction

D. van Neck; M. Waroquier; A. E. L. Dieperink; S. C. Pieper; V. R. Pandharipande

Center-of-mass effects on the quasi-hole spectroscopic factors in the 16O(e,e'p) reaction

D. van Neck, M. Waroquier, A. E. L. Dieperink, S. C. Pieper, V. R. Pandharipande

Kapteyn Astronomical Institute

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Abstract

Published in: Phys. Rev. C 57 (1998) 2308-2315 Citing articles (CrossRef) citations recorded in [Science Citation Index] 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.

Original language	English
Number of pages	14
Journal	Physical Review C
Volume	57
Issue number	5
Publication status	Published - 1998

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title = "Center-of-mass effects on the quasi-hole spectroscopic factors in the 16O(e,e'p) reaction",

abstract = "Published in: Phys. Rev. C 57 (1998) 2308-2315 Citing articles (CrossRef) citations recorded in [Science Citation Index] 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.",

author = "Neck, {D. van} and M. Waroquier and Dieperink, {A. E. L.} and Pieper, {S. C.} and Pandharipande, {V. R.}",

note = "Relation: http://www.rug.nl/ date_submitted:2006 Rights: University of Groningen",

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T1 - Center-of-mass effects on the quasi-hole spectroscopic factors in the 16O(e,e'p) reaction

AU - Neck, D. van

AU - Waroquier, M.

AU - Dieperink, A. E. L.

AU - Pieper, S. C.

AU - Pandharipande, V. R.

N1 - Relation: http://www.rug.nl/ date_submitted:2006 Rights: University of Groningen

PY - 1998

Y1 - 1998

N2 - Published in: Phys. Rev. C 57 (1998) 2308-2315 Citing articles (CrossRef) citations recorded in [Science Citation Index] 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.

AB - Published in: Phys. Rev. C 57 (1998) 2308-2315 Citing articles (CrossRef) citations recorded in [Science Citation Index] 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.

M3 - Article

VL - 57

JO - Physical Review C

JF - Physical Review C

SN - 0556-2813

IS - 5

ER -