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5f4502cc | 1 | //-*- Mode: C++ -*- |
2 | // $Id: AliHLTD0Trigger.h | |
3 | #ifndef ALIHLTD0TRIGGER_H | |
4 | #define ALIHLTD0TRIGGER_H | |
5 | //* This file is property of and copyright by the ALICE HLT Project * | |
6 | //* ALICE Experiment at CERN, All rights reserved. * | |
7 | //* See cxx source for full Copyright notice * | |
8 | ||
9 | /// @file AliHLTD0Trigger.h | |
10 | /// @author Gaute Ovrebekk | |
11 | /// @date 2009-10-28 | |
12 | /// @brief HLT trigger component for D0->Kpi | |
13 | ||
14 | #include "AliHLTTrigger.h" | |
9929f8f5 | 15 | #include <vector> |
629b904b | 16 | #include "AliHLTD0toKpi.h" |
9929f8f5 | 17 | |
5f4502cc | 18 | class TH1F; |
9929f8f5 | 19 | class TObjArray; |
629b904b | 20 | class AliESDVertex; |
21 | class AliExternalTrackParam; | |
0f4240c3 | 22 | class TTree; |
23 | class TClonesArray; | |
5f4502cc | 24 | |
25 | /** | |
26 | * @class AliHLTD0Trigger | |
27 | * | |
28 | * HLT trigger component for D0->Kpi | |
29 | * | |
30 | * <h2>General properties:</h2> | |
31 | * | |
32 | * Component ID: \b D0Trigger <br> | |
33 | * Library: \b libAliHLTTrigger.so <br> | |
34 | * Input Data Types: kAliHLTDataTypeESDObject, kAliHLTDataTypeESDTree | |
35 | * kAliHLTDataTypeTrack <br> | |
36 | * Output Data Types: ::kAliHLTAnyDataType <br> | |
37 | * | |
38 | * <h2>Mandatory arguments:</h2> | |
39 | * <!-- NOTE: ignore the \li. <i> and </i>: it's just doxygen formatting --> | |
8d9d674e | 40 | * TODO: code audit 2010-07-23 describe component arguments |
5f4502cc | 41 | * |
42 | * <h2>Optional arguments:</h2> | |
43 | * <!-- NOTE: ignore the \li. <i> and </i>: it's just doxygen formatting --> | |
44 | * | |
45 | * <h2>Configuration:</h2> | |
46 | * <!-- NOTE: ignore the \li. <i> and </i>: it's just doxygen formatting --> | |
47 | * \li -pt <i> pt cut for decay products </i> <br> | |
48 | * \li -dca <i> dca cut for distance between decay tracks </i> <br> | |
49 | * \li -invmass <i> inv. mass half width of D0 </i> <br> | |
50 | * \li -costhetastar <i> cos of decay angle </i> <br> | |
51 | * \li -d0 <i> Impact parameter for decay products </i> <br> | |
52 | * \li -d0d0 <i> Product of impact parameter for decay products </i> <br> | |
53 | * \li -cospoint <i> pointing angle </i> <br> | |
252bba71 | 54 | * \li -plothistogram <i> ploting the inv. mass and pt of D0 </i> <br> |
0f4240c3 | 55 | * \li -useV0 <i> will use the V0's found by the vertexer and stored in the ESD</i> <br> |
15f6cee9 | 56 | * \li -useKF <i> will use partilce KF for vertex finding </i> <br> |
0f4240c3 | 57 | * \li -send-candidates <i> will send out an array of candidates for each event</i> <br> |
58 | * \li -write-file <i> will store a local file. Only use for small local tests.</i> <br> | |
5f4502cc | 59 | * |
60 | * By default, configuration is loaded from OCDB, can be overridden by | |
61 | * component arguments. | |
62 | * | |
63 | * <h2>Default CDB entries:</h2> | |
64 | * HLT/ConfigHLT/D0Trigger: TObjString storing the arguments | |
65 | * | |
66 | * <h2>Performance:</h2> | |
67 | * | |
68 | * | |
69 | * <h2>Memory consumption:</h2> | |
70 | * | |
71 | * | |
72 | * <h2>Output size:</h2> | |
73 | * | |
74 | * | |
75 | * \ingroup alihlt_trigger_components | |
76 | */ | |
77 | class AliHLTD0Trigger : public AliHLTTrigger | |
78 | { | |
79 | public: | |
80 | AliHLTD0Trigger(); | |
81 | ~AliHLTD0Trigger(); | |
82 | ||
83 | /// inherited from AliHLTTrigger: name of this trigger | |
84 | virtual const char* GetTriggerName() const; | |
85 | /// inherited from AliHLTComponent: create an instance | |
86 | virtual AliHLTComponent* Spawn(); | |
10d746a6 | 87 | |
88 | /// inherited from AliHLTComponent: return OCDB requirements | |
89 | void GetOCDBObjectDescription( TMap* const targetMap); | |
5f4502cc | 90 | |
91 | protected: | |
92 | /// inherited from AliHLTComponent: handle the initialization | |
93 | int DoInit(int argc, const char** argv); | |
94 | ||
95 | /// inherited from AliHLTComponent: handle cleanup | |
96 | int DoDeinit(); | |
97 | ||
98 | /// inherited from AliHLTComponent: handle re-configuration event | |
99 | int Reconfigure(const char* cdbEntry, const char* chainId); | |
100 | ||
101 | /// inherited from AliHLTComponent, scan one argument and | |
102 | /// its parameters | |
103 | int ScanConfigurationArgument(int argc, const char** argv); | |
104 | ||
105 | private: | |
06d76128 | 106 | /// Not implemented. Do not allow copying of this object. |
107 | AliHLTD0Trigger(const AliHLTD0Trigger& ); | |
108 | /// Not implemented. Do not allow copying of this object. | |
109 | AliHLTD0Trigger& operator=(const AliHLTD0Trigger& ); | |
5f4502cc | 110 | |
111 | /// inherited from AliHLTTrigger: calculate the trigger | |
112 | virtual int DoTrigger(); | |
629b904b | 113 | |
a7cf6e02 | 114 | /// Adding single track cut on input tracks, and split in pos. and neg. |
14978adc | 115 | void SingleTrackSelect(AliExternalTrackParam*,const AliESDVertex*,Double_t field); |
a7cf6e02 | 116 | /// Useing the V0's in the ESD found by the V0 finder |
9929f8f5 | 117 | Int_t RecV0(const TObject* iter); |
a7cf6e02 | 118 | /// Reconstructing the D0 from K and pi |
0f4240c3 | 119 | void RecD0(Int_t&,const AliESDVertex*,Double_t field); |
9929f8f5 | 120 | |
5f4502cc | 121 | /// pt cut for decay, minimum [GeV/c] |
122 | float fPtMin; //! transient | |
123 | /// Distance between decay tracks [cm] ?? | |
124 | float fdca; //! transient | |
125 | /// Inv. mass half width [GeV] | |
126 | float finvMass; //! transient | |
127 | /// Decay angle | |
128 | float fcosThetaStar; //! transient | |
129 | /// Distance from primary vertex for decay tracks [cm] | |
130 | float fd0; //! transient | |
131 | /// Product of d0 for the two decay tracks [cm^2] | |
132 | float fd0d0; //! transient | |
133 | /// Pionting angle | |
134 | float fcosPoint; //! transient | |
135 | ||
a7cf6e02 | 136 | /// Option for ploting InvMass and Pt of D0's |
137 | bool fplothisto; //! transient | |
138 | /// Option for useing the V0' from V0 finder | |
9929f8f5 | 139 | bool fUseV0; //! transient |
140 | ||
a7cf6e02 | 141 | /// D0 mass |
052f676e | 142 | Double_t fD0PDG; //! transient |
5f4502cc | 143 | |
144 | /// D0 inv. mass plot | |
9929f8f5 | 145 | TH1F *fD0mass; //! transient |
a7cf6e02 | 146 | /// Pt plot of D0's |
252bba71 | 147 | TH1F *fD0pt; //! transient |
9929f8f5 | 148 | |
a7cf6e02 | 149 | /// Vector for positive tracks |
150 | vector<AliExternalTrackParam*> fPos; //! transient | |
151 | /// Vector for negative tracks | |
152 | vector<AliExternalTrackParam*> fNeg; //! transient | |
9929f8f5 | 153 | |
a7cf6e02 | 154 | /// Object for calculations |
155 | AliHLTD0toKpi *fd0calc; //! transient | |
156 | /// Array of the two decay products | |
157 | TObjArray *ftwoTrackArray; //! transient | |
5f4502cc | 158 | |
a7cf6e02 | 159 | /// Counters for D0 |
160 | Int_t fTotalD0; //! transient | |
2a743e38 | 161 | |
a7cf6e02 | 162 | /// Option for useing KF particle for vertexing |
163 | bool fuseKF; //!transient | |
15f6cee9 | 164 | |
0f4240c3 | 165 | /// Option for storing MC information |
166 | bool fSendCandidate; //!transient | |
167 | /// Tree for storing the MC information | |
168 | TTree *fCandidateTree; //!transient | |
169 | /// Array with D0 candidates | |
170 | TClonesArray *fCandidateArray; //!transient | |
171 | /// Option for writing MC information to file | |
172 | bool fWriteFile; //!transient | |
173 | ||
5f4502cc | 174 | /// the default configuration entry for this component |
175 | static const char* fgkOCDBEntry; //!transient | |
176 | ||
177 | ClassDef(AliHLTD0Trigger, 0) | |
178 | }; | |
179 | #endif //ALIHLTD0TRIGGER_H |