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#ifndef IBeamBackgroundFileParser_h
#define IBeamBackgroundFileParser_h
/*
* Description:
* This interface is used to load the beam background information, such as:
* - pdgid (optional)
* About the pdgid, it will be e+/e- in most cases.
* - x/y/z
* - t (optional)
* - px/py/pz
* About the time, it could be set in the GtBeamBackgroundTool.
*
* Author:
* Tao Lin <lintao AT ihep.ac.cn>
*/
class IBeamBackgroundFileParser {
public:
// Internal used Data
struct BeamBackgroundData {
int pdgid;
double x; // unit: mm
double y; // unit: mm
double z; // unit: mm
double t; // unit: ns
double px; // unit: GeV
double py; // unit: GeV
double pz; // unit: GeV
double mass; // unit: GeV
BeamBackgroundData()
: pdgid(11), x(0), y(0), z(0), t(0),
px(0), py(0), pz(0), mass(0) {}
};
// return false if failed to load the data
virtual bool load(BeamBackgroundData&) = 0;
};
#endif