Evaluated Eta' Photoproduction Cross Section Data Directory
Arndt ea http://gwdac.phys.gwu.edu/analysis/prep_analysis.html
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Authors A.Afanasev, W.Briscoe, and I.Strakovsky
        (revison 28 May 2012)

Evaluated cross section data for pion photoproduction

-- gp_etapp.dat - gp-->eta'p

Add data format is G4VPhysicsVector compatible

Kinetic energy in MeV and cross section in microbarns
