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AnalysisConfigMT_Ntuple.cxx File Reference

Go to the source code of this file.

Functions

std::string date ()
 sadly, includes a return at the end
HepMC::ConstGenParticlePtr fromParent (int pdg_id, HepMC::ConstGenParticlePtr p, bool printout=false)
template<class T>
void remove_duplicates (std::vector< T > &vec)

Detailed Description

Author
mark sutton

Copyright (C) 2002-2023 CERN for the benefit of the ATLAS collaboration

Definition in file AnalysisConfigMT_Ntuple.cxx.

Function Documentation

◆ date()

std::string date ( )

sadly, includes a return at the end

Definition at line 60 of file hcg.cxx.

60 {
61 time_t t;
62 time(&t);
63 std::string a = ctime(&t);
64 std::string b = "";
65 for ( unsigned i=0 ; i<a.size()-1 ; i++ ) b+=a[i];
66 return b;
67}
static Double_t a
time(flags, cells_name, *args, **kw)

◆ fromParent()

HepMC::ConstGenParticlePtr fromParent ( int pdg_id,
HepMC::ConstGenParticlePtr p,
bool printout = false )

recursive stopping conditions

recursive stopping conditions

useful debug

recursive stopping conditions

Definition at line 78 of file AnalysisConfig_Ntuple.cxx.

78 {
79
80 if ( p==0 ) return 0;
81 if (std::abs(p->pdg_id())==11 || std::abs(p->pdg_id())==13 ) return 0; //don't want light leptons from tau decays
82 if ( std::abs(p->pdg_id())==pdg_id ) return p;
83
84 auto vertex = p->production_vertex();
85 if ( !vertex) return 0; // has no production vertex !!!
86
87 if ( vertex->particles_in().size() < 1 ) return 0;
88
90 // if ( printout ) {
91 // TruthParticle t(p);
92 // std::cout << "particle " << *p << " " << t.pdgId() << "\tparent " << p << std::endl;
93 // }
94
95 for ( auto in: vertex->particles_in()) {
96 auto parent = fromParent( pdg_id, in, printout );
97 TruthParticle t(in);
98 if ( parent && std::abs(parent->pdg_id())==pdg_id) {
99 return parent;
100 }
101 }
102 return 0;
103}
HepMC::ConstGenParticlePtr fromParent(int pdg_id, HepMC::ConstGenParticlePtr p, bool printout=false)

◆ remove_duplicates()

template<class T>
void remove_duplicates ( std::vector< T > & vec)

Definition at line 37 of file AnalysisConfigMT_Ntuple.cxx.

37 {
38 std::sort(vec.begin(), vec.end());
39 vec.erase(std::unique(vec.begin(), vec.end()), vec.end());
40}
std::vector< size_t > vec
DataModel_detail::iterator< DVL > unique(typename DataModel_detail::iterator< DVL > beg, typename DataModel_detail::iterator< DVL > end)
Specialization of unique for DataVector/List.
void sort(typename DataModel_detail::iterator< DVL > beg, typename DataModel_detail::iterator< DVL > end)
Specialization of sort for DataVector/List.