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A Simultaneous Measurement of the (γ,n) and (γ,p) Reactions in 4He

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Few-Body Problems in Physics ’93

Part of the book series: Few-Body Systems ((FEWBODY,volume 7))

Abstract

A significant charge asymmetry in the nuclear force has been attributed to differences in the 4He(γ,n)3He and 4He(γ,p)3H cross sections below Eγ ∼ 35 MeV. To investigate this claim, we have performed a simultaneous measurement of these cross sections by measuring the recoiling 3He and 3H nuclei in the same detector system consisting of windowless ΔE proportional counters backed by silicon E detectors. We find, within our errors, that for 25 < Eγ < 35 MeV the ratio of the cross sections σ(γ,p)/σ(γ,n) is consistent with charge symmetry and with the predictions of shell-model calculations.

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Author information

Authors and Affiliations

  1. Saskatchewan Accelerator Laboratory, University of Saskatchewan, Saskatoon, Saskatchewan, Canada, S7N 0W0

    J. Asai, G. Feldman, R. E. J. Florizone, E. L. Hallin, D. M. Skopik & J. M. Vogt

  2. Los Alamos National Laboratory, Los Alamos, New Mexico, USA, 87545

    R. C. Haight & S. M. Sterbenz

Authors
  1. J. Asai
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  2. G. Feldman
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  3. R. E. J. Florizone
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  4. E. L. Hallin
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  5. D. M. Skopik
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  6. J. M. Vogt
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  7. R. C. Haight
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  8. S. M. Sterbenz
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Editor information

Editors and Affiliations

  1. Department of Physics, Free University, Amsterdam, The Netherlands

    B. L. G. Bakker

  2. National Institute for Nuclear and High-Energy Physics (NIKHEF), Amsterdam, The Netherlands

    R. van Dantzig

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© 1994 Springer-Verlag/Wien

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Asai, J. et al. (1994). A Simultaneous Measurement of the (γ,n) and (γ,p) Reactions in 4He. In: Bakker, B.L.G., van Dantzig, R. (eds) Few-Body Problems in Physics ’93. Few-Body Systems, vol 7. Springer, Vienna. https://doi.org/10.1007/978-3-7091-9352-5_15

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  • DOI: https://doi.org/10.1007/978-3-7091-9352-5_15

  • Publisher Name: Springer, Vienna

  • Print ISBN: 978-3-7091-9354-9

  • Online ISBN: 978-3-7091-9352-5

  • eBook Packages: Springer Book Archive

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