pn-Pair Coupling in the \(γ,pn\) Reaction at 72 MeV
Physical Review Letters(1999)
Abstract
J. R. M. Annand, G. I. Crawford, V. Holliday, J. C. McGeorge, and G. J. Miller** Department of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, Scotland (Received 27 May 1999) The 16O g,pn reaction was measured at Eg 72 MeV with resolution sufficient to distinguish the low-lying states of the residual 14N nucleus. Cross sections averaged over the acceptance of the detector system were determined for each of the resolved states. The relative population of residual states indicates that proton-neutron pairs coupled to J ,T 0, 1 play a minor role in the photon absorption process compared to 1, 0 pairs and that both L 0 and L 2 pairs participate in the reaction.
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Key words
coupling,theγpnreaction,pn-pair
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