12C(,pn) photon asymmetry for Eγ=180–340 MeV

Franczuk, S. et al. (1999) 12C(,pn) photon asymmetry for Eγ=180–340 MeV. Physics Letters B, 450(4), pp. 332-338. (doi: 10.1016/S0370-2693(99)00184-7)

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The photon asymmetry (Σ) of the <sup>12</sup>C(,pn) reaction has been measured using linearly polarised tagged photons at the Mainz microtron MAMI for Eγ=180–340 MeV. The data have been analysed in separate missing energy (Em) regions corresponding to the ejection of nucleons from (1p)2 and (1p)(1s) shells. The measured Σ values for both Em regions are smaller in magnitude than corresponding 2H data, but the (1p)2 results have a similar Eγ dependence. Calculations of direct two-nucleon emission overestimate the magnitude of Σ at all photon energies.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Branford, Prof Derek and Livingston, Dr Kenneth and McGeorge, Dr John and Owens, Professor Robert and Ireland, Professor David and MacGregor, Professor Douglas and Annand, Dr John and Kellie, Dr James
Authors: Franczuk, S., MacGregor, I.J.D., Ahrens, J., Annand, J.R.M., Arneil, J.F., Beck, R., Branford, D., Grabmayr, P., Hall, S.J., Hehl, T., Harty, P.D., Ireland, D.G., Kellie, J.D., Livingston, K., McGeorge, J.C., Natter, F.A., Oberkirsch, S., Owens, R.O., Powrie, C.J.Y., Ryckebusch, J., Sauer, M., Settele, A., and Watts, D.P.
Subjects:Q Science > QC Physics
College/School:College of Science and Engineering > School of Physics and Astronomy
Research Group:Nuclear Physics
Journal Name:Physics Letters B
Journal Abbr.:Phys. Lett. B
Publisher:Elsevier BV
ISSN (Online):1873-2445
Copyright Holders:Elsevier Science B.V.

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