SiHitCollection_p2 Node1 SiHitCollection_p2 + SiHitCollection_p2() Node2 std::vector< unsigned short > + elements Node2->Node1 +m_nId +m_hitLength_2b +m_nBC +m_dPhi +m_nHits +m_dTheta +m_hitEne_2b Node3 std::vector< unsigned long > Node3->Node1 +m_id +m_barcode Node4 long Node4->Node3 +elements Node5 std::vector< float > + elements Node5->Node1 +m_hit1_x0 +m_hit1_phi +m_hitLength_4b +m_hit1_y0 +m_hit1_z0 +m_hit1_theta +m_hitEne_4b +m_hit1_meanTime