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Manuscript Title: Exact PWBA virtual photon spectrum for A(gammaV,D)R.
Authors: L. Tiator, L.E. Wright
Program title: VPSPEC
Catalogue identifier: AAOQ_v1_0
Distribution format: gz
Journal reference: Comput. Phys. Commun. 28(1983)265
Programming language: Fortran.
Computer: HP 3000.
Operating system: HP 3000 MPE IV.
RAM: 4K words
Word size: 16
Keywords: Nuclear physics, Coulomb excitation, Virtual photon spectrum.
Classification: 17.13.

Nature of problem:
Quite often in nuclear and intermediate energy physics it is desirable to extract photon induced cross sections from measured electron induced cross sections. Assuming the validity of virtual photon theory this extraction can be carried out by means of a virtual photon spectrum.

Solution method:
The virtual photon spectrum in Plane Wave Born Approximation (PWBA) for the case of a two-body hadronic final state is an integral over electron scattering angles. For finite mass targets this integral cannot be performed analytically without making certain kinematic approximations. Here we describe a simple computer program for the numerical integration of the virtual photon spectrum integral which makes no kinematic approximations.