Chroma Physics

Is the modeling equivalent to Geant4 ?

Photon enum:

47 enum
48 {
49     NO_HIT           = 0x1 << 0,
50     BULK_ABSORB      = 0x1 << 1,
51     SURFACE_DETECT   = 0x1 << 2,
52     SURFACE_ABSORB   = 0x1 << 3,
53     RAYLEIGH_SCATTER = 0x1 << 4,
54     REFLECT_DIFFUSE  = 0x1 << 5,
55     REFLECT_SPECULAR = 0x1 << 6,
56     SURFACE_REEMIT   = 0x1 << 7,
57     SURFACE_TRANSMIT = 0x1 << 8,
58     BULK_REEMIT      = 0x1 << 9,
59     NAN_ABORT        = 0x1 << 31
60 }; // processes