4 double yPosition,
double zPosition,
double px,
double py,
5 double pz,
double trackLength,
double flightTime)
6 : m_id(id), m_trackIndex(trackIndex),
7 m_xPosition(xPosition), m_yPosition(yPosition),m_zPosition(zPosition),
8 m_px(px), m_py(py),
m_pz(pz), m_trackLength(trackLength), m_flightTime(flightTime){}