Investigation of the <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow></mrow><mrow><mn>10</mn></mrow></msup></mrow><mi mathvariant="normal">B</mi><mo>(</mo><mi>γ</mi><mo>,</mo><mi>p</mi><mo>)</mo></math></span> reaction using tagged photons

L. J. de Bever; D. Branford; J-O. Adler; B-E. Andersson; I. Bobeldijk; T. Davinson; R. S. Hicks; D. G. Ireland; K. Livingston; R. L. J. van der Meer; R. A. Miskimen; D. Van Neck; L. Isaksson; R. D. Page; G. A. Peterson; J. Rahighi; H. Ruijter; B. Schrøder; G. van der Steenhoven; P. J. Woods; K. Wang; A. C. Shotter

doi:10.1103/PhysRevC.58.981

Investigation of the $^{10} B (γ, p)$ reaction using tagged photons

L. J. de Bever, D. Branford, J-O. Adler, B-E. Andersson, I. Bobeldijk, T. Davinson, R. S. Hicks, D. G. Ireland, K. Livingston, R. L. J. van der Meer, R. A. Miskimen, D. Van Neck, L. Isaksson, R. D. Page, G. A. Peterson, J. Rahighi, H. Ruijter, B. Schrøder, G. van der Steenhoven, P. J. Woods, K. Wang, and A. C. Shotter

Phys. Rev. C 58, 981 – Published 1 August 1998

Abstract

The reaction $^{10} B (γ, p)$ has been studied using tagged photons of mean energies $E_{γ} = 57.6$ and 72.9 MeV. Angular distributions and derived single-particle momentum distributions for protons leading to the ground state of $^{9} Be$ and higher excited states are compared to various calculations made using model parameters constrained by $^{10} B {(e, e}^{'} {p)}^{9} Be$ and $^{9} Be {(p, p}^{'})^{9} Be$ measurements. The effects of varying final-state interactions (including channel couplings) and meson exchange currents are considered. A sizable discrepancy between direct-knockout calculations and the experimental results is observed. If meson exchange currents are included in an approximate fashion, a good description of the $^{10} B (γ {, p}_{0})^{9} Be$ data is found.

Received 22 April 1998

DOI:https://doi.org/10.1103/PhysRevC.58.981

Authors & Affiliations

L. J. de Bever^1,*, D. Branford², J-O. Adler³, B-E. Andersson³, I. Bobeldijk¹, T. Davinson², R. S. Hicks⁴, D. G. Ireland^2,†, K. Livingston^2,†, R. L. J. van der Meer^1,‡, R. A. Miskimen⁴, D. Van Neck⁵, L. Isaksson³, R. D. Page^2,§, G. A. Peterson⁴, J. Rahighi^2,∥, H. Ruijter³, B. Schrøder³, G. van der Steenhoven¹, P. J. Woods², K. Wang^4,¶, and A. C. Shotter²

¹Nationaal Instituut voor Kernfysica en Hoge–Energiefysica (NIKHEF), P.O. Box 41882, 1009 DB Amsterdam, The Netherlands
²Department of Physics and Astronomy, University of Edinburgh, Edinburgh EH9 3JZ, Scotland
³Department of Nuclear Physics, University of Lund, S-223 62 Lund, Sweden
⁴Department of Physics and Astronomy, University of Massachusetts, Amherst, Massachusetts 01003
⁵Rijksuniversiteit Gent, Proeftuinstraat 1, Gent, Belgium

^*Present address: Systor AG, Lautengartenstrasse 6, CH-4002 Basel, Switzerland.
^†Present address: Department of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, Scotland.
^‡Present address: Jefferson Laboratory, Newport News, VA 23606
^§Present address: Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 38X, England.
^∥Present address: AEOI, NRC, Van de Graaff Laboratory, P.O. Box 11365-8486, Tehran, Iran.
^¶Present address: Department of Physics, University of Virginia, Charlottesville, VA 22901.

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Vol. 58, Iss. 2 — August 1998

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