AnaDataObjects

Package AnaDataObjects is part of the SCT Event selection framework. It contains main objects needed for events analysis.

class Particle

Class Particle describes all particles, including final-state-particles and unstable intermediate particles. It has the following private members:

• int m_pdgCode; /**< PDG code */
• float m_mass; /**< particle (invariant) mass */
• ThreeVector m_p; /**< momentum components */
• ThreeVector m_r; /**< position components */
• ErrMatrix m_errMatrix; /**< error matrix. The order is [px, py, pz, E, x, y, z] */
• std::vector<ParticlePtr> m_daughters; /**< daughter particle pointers */
• EFlavorType m_flavorType; /**< flavor type. */
• EParticleType m_particleType; /**< particle type */
• size_t m_mdstIndex; /**< 0-based index of MDST store array object */
• ExtraInfoMap m_extraInfo; /**< map for user defined info */

It can be constructed with the following constructors:

• Particle(); /** All private members are set to 0. Particle type is set to c_Undefined. */
• Particle(ThreeVector momentum, float mass, int pdgCode, EParticleType particleType=c_Undefined); /** All other private members are set to their default values (0). */
• Particle(const FourVector& momentum, int pdgCode, EParticleType particleType=c_Undefined); /** All other private members are set to their default values (0). */
• Particle(std::vector<ParticlePtr> daughters, int pdgCode); /** Constructor for composite particles. */
• Particle(const sct::MCParticle &mcparticle); /** Constructor from MC Particle of podio tree */
• Particle(const sct::Particle &particle, int pdg, size_t partIndex); /** Constructor from MC Particle of podio tree */

class ParticleList

All Particle class instances are exist inside ParticleList objects