BeamShape
";?> pythia.setBeamShapePtr( BeamShape*)
main23.cc
init()
pick()
Settings
Beams:allowMomentumSpread
Beams:allowVertexSpread
double
deltaPxA, deltaPyA, deltaPzA
deltaPxB, deltaPyB, deltaPzB
vertexX, vertexY, vertexZ, vertexT