Scaling of the 4He(γ,p)t reaction in the Eγ = 80–160 MeV region

Schmieden, H. et al. (1993) Scaling of the 4He(γ,p)t reaction in the Eγ = 80–160 MeV region. Physics Letters B, 314(304), pp. 284-288. (doi: 10.1016/0370-2693(93)91237-H)

Full text not currently available from Enlighten.


The 4He(γ,p) 3H reaction cross section has been measured with tagged photons of energy 81–158 MeV. Protons were detected over the angular range 55°–125°. The scaling of the data as a function of momentum mismatch has been examined for two reaction models, the modified quasideuteron mechanism and quasifree knockout. Both models show clear scaling behaviour but comparison of the predicted and measured scaling function shapes favours the modified quasideuteron mechanism at momenta up to ≈500 MeV/c.

Item Type:Articles
Glasgow Author(s) Enlighten ID:McGeorge, Dr John and MacGregor, Professor Douglas and Owens, Professor Robert and Annand, Dr John and Kellie, Dr James
Authors: Schmieden, H., MacGregor, I.J.D., Owens, R.O., Schoch, B., Annand, J.R.M., Beck, R., Doran, S.M., Hall, S.J., Kellie, J.D., McGeorge, J.C., and Vogt, J.M.
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

University Staff: Request a correction | Enlighten Editors: Update this record