Application of the Lorentz-transform technique to meson photoproduction
Dipartimento di Fisica, Università di Trento, I-38050, Povo (TN), Italy
2 Gruppo Collegato di Trento, Istituto Nazionale di Fisica Nucleare, I-38050, Povo (TN), Italy
3 Department of Physics and Astronomy, University of Victoria, BC V8P 1A1, Victoria, Canada
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We show that the Lorentz integral transform (LIT) technique which has been successfully applied to photoreactions in light nuclei can also be applied to photoreactions involving particle production. A simple model where results are easily calculable in the traditional fashion is used to test the technique. Specifically, we compute inclusive $\pi^+$ photoproduction from deuterium for photon energies less than 200 MeV using a Yamaguchi model for the NN interaction. It is demonstrated that, although the response functions for inclusive meson production do not have favourable asymptotic behavior, one can nonetheless extract them by inversion of the transform. The implication is that one can treat realistic problems of photo-meson production, including all final-state interactions, by means of the LIT technique.
© Società Italiana di Fisica and Springer-Verlag, 2003