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Mēnsūra
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Describes a generator-level particle. More...
#include <GenParticle.hpp>
Public Types | |
| typedef std::list< GenParticle const * > | collection_t |
| Type of the container to store mothers and daughters. | |
Public Member Functions | |
| GenParticle () noexcept | |
| Default constructor. | |
| GenParticle (TLorentzVector const &p4, int pdgId=0) noexcept | |
| Constructor with four-momentum and PDG ID code. | |
| GenParticle (GenParticle const &)=default | |
| Default copy constructor. | |
| GenParticle (GenParticle &&)=default | |
| Default move constructor. | |
| void | AddDaughter (GenParticle const *p) |
| Adds a daughter particle. | |
| void | AddMother (GenParticle const *p) |
| Adds a mother particle. | |
| GenParticle const * | FindFirstDaughter (std::initializer_list< int > const &pdgIds) const |
| Returns the pointer to the first daughter that matches one of the given PDG ID codes. More... | |
| GenParticle const * | FindFirstDaughterRecursive (std::initializer_list< int > const &pdgIds) const |
| Recursively looks for a daughter with one of the specified PDG ID codes and returns the pointer to it. More... | |
| collection_t const & | GetDaughters () const |
| Returns the collection of daughter particles. | |
| GenParticle const * | GetFirstMother () const |
| A short-cut to access the first mother. | |
| int | GetFirstMotherPdgId () const |
| A short-cut to access PDG ID code of the first mother. More... | |
| collection_t const & | GetMothers () const |
| Returns the collection of mother particles. | |
| int | GetPdgId () const |
| Returns the PDG ID code. | |
| void | SetPdgId (int pdgId_) |
| Sets the PDG ID code. | |
 Public Member Functions inherited from Candidate | |
| Candidate () noexcept | |
| Default constructor. | |
| Candidate (TLorentzVector const &p4_) noexcept | |
| Constructor from a 4-momentum. | |
| void | SetP4 (TLorentzVector const &p4_) noexcept |
| Sets four-momentum. | |
| void | SetPtEtaPhiM (double pt, double eta, double phi, double mass) noexcept |
| Sets four-momentum. | |
| void | SetPxPyPzE (double px, double py, double pz, double E) noexcept |
| Sets four-momentum. | |
| void | SetUserFloat (std::string const &label, double value) |
| Sets or changes value of a user-defined real-valued property. | |
| void | SetUserInt (std::string const &label, long value) |
| Sets or changes value of a user-defined integer-valued property. | |
| TLorentzVector const & | P4 () const noexcept |
| Four-momentum. | |
| double | Pt () const noexcept |
| Transverse momentum, GeV/c. | |
| double | Eta () const noexcept |
| Pseudorapidity. | |
| double | Phi () const noexcept |
| Azimuthal angle. | |
| double | M () const noexcept |
| Mass, GeV/c^2. | |
| double | E () const noexcept |
| Energy, GeV. | |
| double | UserFloat (std::string const &label) const |
| Returns value of the user-defined property with the given label. More... | |
| long | UserInt (std::string const &label) const |
| Returns value of the user-defined property with the given label. More... | |
| bool | operator< (Candidate const &rhs) const noexcept |
| Ordering operator. | |
Describes a generator-level particle.
A particle is described by its four-momentum and PDG ID codes. It also stores collections of (non-owning) pointers to its mothers and daughters.
| GenParticle const * GenParticle::FindFirstDaughter | ( | std::initializer_list< int > const & | pdgIds | ) | const |
Returns the pointer to the first daughter that matches one of the given PDG ID codes.
The sign of the code is taken in to account. Returns null pointer of no match is found.
| GenParticle const * GenParticle::FindFirstDaughterRecursive | ( | std::initializer_list< int > const & | pdgIds | ) | const |
Recursively looks for a daughter with one of the specified PDG ID codes and returns the pointer to it.
The sign of the code is taken into account. This method is called recursively for all daughters until the match is found. If no descendants have the given PDG ID code, a null pointer is returned.
| int GenParticle::GetFirstMotherPdgId | ( | ) | const |
A short-cut to access PDG ID code of the first mother.
If the particle has no mothers, zero is returned.
1.8.10
