Evaluated Kaon-Nucleon Cross Section Data Directory

Hyslop ea PhysRevD46:961,1992
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Authors: A.Afanasev, W.Briscoe, and I.Strakovsky
        (revison 4 February 2018)

Evaluated cross section data for kaon-proton

-- kpp_el.dat - K+p elastic 
-- kpp_in.dat - K+p inelastic

Evaluated cross section data for kaon-neutron

-- kpn_el.dat - K+n elastic
-- kpn_in.dat - K+n inelastic

Add data format is G4VPhysicsVector compatible

Kinetic energy in MeV and cross section in millibarns 
