ROOT
6.07/01
Reference Guide
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Description of the dynamic properties of a particle.
A dynamic particle class created by event generators and used during the propagation in detectors. The static attributes of a TParticle are described by TParticlePDG.
Int_t fPdgCode; // PDG code of the particle Int_t fStatusCode; // generation status code Int_t fMother[2]; // Indices of the mother particles Int_t fDaughter[2]; // Indices of the daughter particles Float_t fWeight; // particle weight Double_t fCalcMass; // Calculated mass Double_t fPx; // x component of momentum Double_t fPy; // y component of momentum Double_t fPz; // z component of momentum Double_t fE; // Energy Double_t fVx; // x of production vertex Double_t fVy; // y of production vertex Double_t fVz; // z of production vertex Double_t fVt; // t of production vertex Double_t fPolarTheta; // Polar angle of polarisation Double_t fPolarPhi; // azymutal angle of polarisation TParticlePDG* fParticlePDG; //! reference to the particle record in PDG database
Definition at line 34 of file TParticle.h.
Public Member Functions | |
TParticle () | |
reference to the particle record in PDG database More... | |
TParticle (Int_t pdg, Int_t status, Int_t mother1, Int_t mother2, Int_t daughter1, Int_t daughter2, Double_t px, Double_t py, Double_t pz, Double_t etot, Double_t vx, Double_t vy, Double_t vz, Double_t time) | |
constructor More... | |
TParticle (Int_t pdg, Int_t status, Int_t mother1, Int_t mother2, Int_t daughter1, Int_t daughter2, const TLorentzVector &p, const TLorentzVector &v) | |
constructor More... | |
TParticle (const TParticle &part) | |
copy constructor More... | |
virtual | ~TParticle () |
destructor More... | |
TParticle & | operator= (const TParticle &) |
Equal operator. More... | |
Int_t | GetStatusCode () const |
Int_t | GetPdgCode () const |
Int_t | GetFirstMother () const |
Int_t | GetMother (Int_t i) const |
Int_t | GetSecondMother () const |
Bool_t | IsPrimary () const |
Int_t | GetFirstDaughter () const |
Int_t | GetDaughter (Int_t i) const |
Int_t | GetLastDaughter () const |
Double_t | GetCalcMass () const |
Double_t | GetMass () const |
Return nominal particle mass from PDG table. More... | |
Int_t | GetNDaughters () const |
Float_t | GetWeight () const |
void | GetPolarisation (TVector3 &v) const |
Return particle polarisation. More... | |
TParticlePDG * | GetPDG (Int_t mode=0) const |
Returns a pointer to the TParticlePDG object using the pdgcode. More... | |
Int_t | Beauty () const |
Return beauty quantum number. More... | |
Int_t | Charm () const |
Return charm quantum number. More... | |
Int_t | Strangeness () const |
Return strangeness quantum number. More... | |
void | Momentum (TLorentzVector &v) const |
void | ProductionVertex (TLorentzVector &v) const |
Double_t | Vx () const |
Double_t | Vy () const |
Double_t | Vz () const |
Double_t | T () const |
Double_t | R () const |
Double_t | Rho () const |
Double_t | Px () const |
Double_t | Py () const |
Double_t | Pz () const |
Double_t | P () const |
Double_t | Pt () const |
Double_t | Energy () const |
Double_t | Eta () const |
Double_t | Y () const |
Double_t | Phi () const |
Double_t | Theta () const |
void | SetFirstMother (int code) |
void | SetMother (int i, int code) |
void | SetLastMother (int code) |
void | SetFirstDaughter (int code) |
void | SetDaughter (int i, int code) |
void | SetLastDaughter (int code) |
void | SetCalcMass (Double_t mass) |
void | SetPdgCode (Int_t pdg) |
Change the PDG code for this particle. More... | |
void | SetPolarisation (Double_t polx, Double_t poly, Double_t polz) |
Set particle polarisation. More... | |
void | SetPolarisation (const TVector3 &v) |
void | SetStatusCode (int status) |
void | SetWeight (Float_t weight=1) |
void | SetMomentum (Double_t px, Double_t py, Double_t pz, Double_t e) |
void | SetMomentum (const TLorentzVector &p) |
void | SetProductionVertex (Double_t vx, Double_t vy, Double_t vz, Double_t t) |
void | SetProductionVertex (const TLorentzVector &v) |
virtual void | Paint (Option_t *option="") |
Paint a primary track. More... | |
virtual void | Print (Option_t *option="") const |
Print the internals of the primary vertex particle. More... | |
virtual void | Sizeof3D () const |
Return total X3D size of this primary. More... | |
virtual Int_t | DistancetoPrimitive (Int_t px, Int_t py) |
Compute distance from point px,py to a primary track. More... | |
virtual void | ExecuteEvent (Int_t event, Int_t px, Int_t py) |
Execute action corresponding to one event. More... | |
virtual const char * | GetName () const |
Return particle name. More... | |
virtual const char * | GetTitle () const |
Return particle title. More... | |
Public Member Functions inherited from TObject | |
TObject () | |
TObject (const TObject &object) | |
TObject copy ctor. More... | |
TObject & | operator= (const TObject &rhs) |
TObject assignment operator. More... | |
virtual | ~TObject () |
TObject destructor. More... | |
virtual void | AppendPad (Option_t *option="") |
Append graphics object to current pad. More... | |
virtual void | Browse (TBrowser *b) |
Browse object. May be overridden for another default action. More... | |
virtual const char * | ClassName () const |
Returns name of class to which the object belongs. More... | |
virtual void | Clear (Option_t *="") |
virtual TObject * | Clone (const char *newname="") const |
Make a clone of an object using the Streamer facility. More... | |
virtual Int_t | Compare (const TObject *obj) const |
Compare abstract method. More... | |
virtual void | Copy (TObject &object) const |
Copy this to obj. More... | |
virtual void | Delete (Option_t *option="") |
Delete this object. More... | |
virtual void | Draw (Option_t *option="") |
Default Draw method for all objects. More... | |
virtual void | DrawClass () const |
Draw class inheritance tree of the class to which this object belongs. More... | |
virtual TObject * | DrawClone (Option_t *option="") const |
Draw a clone of this object in the current pad. More... | |
virtual void | Dump () const |
Dump contents of object on stdout. More... | |
virtual void | Execute (const char *method, const char *params, Int_t *error=0) |
Execute method on this object with the given parameter string, e.g. More... | |
virtual void | Execute (TMethod *method, TObjArray *params, Int_t *error=0) |
Execute method on this object with parameters stored in the TObjArray. More... | |
virtual TObject * | FindObject (const char *name) const |
Must be redefined in derived classes. More... | |
virtual TObject * | FindObject (const TObject *obj) const |
Must be redefined in derived classes. More... | |
virtual Option_t * | GetDrawOption () const |
Get option used by the graphics system to draw this object. More... | |
virtual UInt_t | GetUniqueID () const |
Return the unique object id. More... | |
virtual const char * | GetIconName () const |
Returns mime type name of object. More... | |
virtual Option_t * | GetOption () const |
virtual char * | GetObjectInfo (Int_t px, Int_t py) const |
Returns string containing info about the object at position (px,py). More... | |
virtual Bool_t | HandleTimer (TTimer *timer) |
Execute action in response of a timer timing out. More... | |
virtual ULong_t | Hash () const |
Return hash value for this object. More... | |
virtual Bool_t | InheritsFrom (const char *classname) const |
Returns kTRUE if object inherits from class "classname". More... | |
virtual Bool_t | InheritsFrom (const TClass *cl) const |
Returns kTRUE if object inherits from TClass cl. More... | |
virtual void | Inspect () const |
Dump contents of this object in a graphics canvas. More... | |
virtual Bool_t | IsFolder () const |
Returns kTRUE in case object contains browsable objects (like containers or lists of other objects). More... | |
virtual Bool_t | IsEqual (const TObject *obj) const |
Default equal comparison (objects are equal if they have the same address in memory). More... | |
virtual Bool_t | IsSortable () const |
Bool_t | IsOnHeap () const |
Bool_t | IsZombie () const |
virtual Bool_t | Notify () |
This method must be overridden to handle object notification. More... | |
virtual void | ls (Option_t *option="") const |
The ls function lists the contents of a class on stdout. More... | |
virtual void | Pop () |
Pop on object drawn in a pad to the top of the display list. More... | |
virtual Int_t | Read (const char *name) |
Read contents of object with specified name from the current directory. More... | |
virtual void | RecursiveRemove (TObject *obj) |
Recursively remove this object from a list. More... | |
virtual void | SaveAs (const char *filename="", Option_t *option="") const |
Save this object in the file specified by filename. More... | |
virtual void | SavePrimitive (std::ostream &out, Option_t *option="") |
Save a primitive as a C++ statement(s) on output stream "out". More... | |
virtual void | SetDrawOption (Option_t *option="") |
Set drawing option for object. More... | |
virtual void | SetUniqueID (UInt_t uid) |
Set the unique object id. More... | |
virtual void | UseCurrentStyle () |
Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked. More... | |
virtual Int_t | Write (const char *name=0, Int_t option=0, Int_t bufsize=0) |
Write this object to the current directory. More... | |
virtual Int_t | Write (const char *name=0, Int_t option=0, Int_t bufsize=0) const |
Write this object to the current directory. More... | |
void * | operator new (size_t sz) |
void * | operator new[] (size_t sz) |
void * | operator new (size_t sz, void *vp) |
void * | operator new[] (size_t sz, void *vp) |
void | operator delete (void *ptr) |
Operator delete. More... | |
void | operator delete[] (void *ptr) |
Operator delete []. More... | |
void | SetBit (UInt_t f, Bool_t set) |
Set or unset the user status bits as specified in f. More... | |
void | SetBit (UInt_t f) |
void | ResetBit (UInt_t f) |
Bool_t | TestBit (UInt_t f) const |
Int_t | TestBits (UInt_t f) const |
void | InvertBit (UInt_t f) |
virtual void | Info (const char *method, const char *msgfmt,...) const |
Issue info message. More... | |
virtual void | Warning (const char *method, const char *msgfmt,...) const |
Issue warning message. More... | |
virtual void | Error (const char *method, const char *msgfmt,...) const |
Issue error message. More... | |
virtual void | SysError (const char *method, const char *msgfmt,...) const |
Issue system error message. More... | |
virtual void | Fatal (const char *method, const char *msgfmt,...) const |
Issue fatal error message. More... | |
void | AbstractMethod (const char *method) const |
Use this method to implement an "abstract" method that you don't want to leave purely abstract. More... | |
void | MayNotUse (const char *method) const |
Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary). More... | |
void | Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const |
Use this method to declare a method obsolete. More... | |
Public Member Functions inherited from TAttLine | |
TAttLine () | |
AttLine default constructor. More... | |
TAttLine (Color_t lcolor, Style_t lstyle, Width_t lwidth) | |
AttLine normal constructor. More... | |
virtual | ~TAttLine () |
AttLine destructor. More... | |
void | Copy (TAttLine &attline) const |
Copy this line attributes to a new TAttLine. More... | |
Int_t | DistancetoLine (Int_t px, Int_t py, Double_t xp1, Double_t yp1, Double_t xp2, Double_t yp2) |
Compute distance from point px,py to a line. More... | |
virtual Color_t | GetLineColor () const |
virtual Style_t | GetLineStyle () const |
virtual Width_t | GetLineWidth () const |
virtual void | Modify () |
Change current line attributes if necessary. More... | |
virtual void | ResetAttLine (Option_t *option="") |
Reset this line attributes to default values. More... | |
virtual void | SaveLineAttributes (std::ostream &out, const char *name, Int_t coldef=1, Int_t stydef=1, Int_t widdef=1) |
Save line attributes as C++ statement(s) on output stream out. More... | |
virtual void | SetLineAttributes () |
Invoke the DialogCanvas Line attributes. More... | |
virtual void | SetLineColor (Color_t lcolor) |
virtual void | SetLineColorAlpha (Color_t lcolor, Float_t lalpha) |
Set a transparent line color. More... | |
virtual void | SetLineStyle (Style_t lstyle) |
virtual void | SetLineWidth (Width_t lwidth) |
ClassDef (TAttLine, 2) | |
Public Member Functions inherited from TAtt3D | |
TAtt3D () | |
virtual | ~TAtt3D () |
Protected Attributes | |
Int_t | fPdgCode |
Int_t | fStatusCode |
Int_t | fMother [2] |
Int_t | fDaughter [2] |
Float_t | fWeight |
Double_t | fCalcMass |
Double_t | fPx |
Double_t | fPy |
Double_t | fPz |
Double_t | fE |
Double_t | fVx |
Double_t | fVy |
Double_t | fVz |
Double_t | fVt |
Double_t | fPolarTheta |
Double_t | fPolarPhi |
TParticlePDG * | fParticlePDG |
Protected Attributes inherited from TAttLine | |
Color_t | fLineColor |
Style_t | fLineStyle |
Width_t | fLineWidth |
Additional Inherited Members | |
Public Types inherited from TObject | |
enum | EStatusBits { kCanDelete = BIT(0), kMustCleanup = BIT(3), kObjInCanvas = BIT(3), kIsReferenced = BIT(4), kHasUUID = BIT(5), kCannotPick = BIT(6), kNoContextMenu = BIT(8), kInvalidObject = BIT(13) } |
enum | { kIsOnHeap = 0x01000000, kNotDeleted = 0x02000000, kZombie = 0x04000000, kBitMask = 0x00ffffff } |
enum | { kSingleKey = BIT(0), kOverwrite = BIT(1), kWriteDelete = BIT(2) } |
Static Public Member Functions inherited from TObject | |
static Long_t | GetDtorOnly () |
Return destructor only flag. More... | |
static void | SetDtorOnly (void *obj) |
Set destructor only flag. More... | |
static Bool_t | GetObjectStat () |
Get status of object stat flag. More... | |
static void | SetObjectStat (Bool_t stat) |
Turn on/off tracking of objects in the TObjectTable. More... | |
Protected Member Functions inherited from TObject | |
void | MakeZombie () |
virtual void | DoError (int level, const char *location, const char *fmt, va_list va) const |
Interface to ErrorHandler (protected). More... | |
#include <TParticle.h>
TParticle::TParticle | ( | ) |
reference to the particle record in PDG database
TParticle::TParticle | ( | Int_t | pdg, |
Int_t | status, | ||
Int_t | mother1, | ||
Int_t | mother2, | ||
Int_t | daughter1, | ||
Int_t | daughter2, | ||
Double_t | px, | ||
Double_t | py, | ||
Double_t | pz, | ||
Double_t | etot, | ||
Double_t | vx, | ||
Double_t | vy, | ||
Double_t | vz, | ||
Double_t | time | ||
) |
constructor
Definition at line 77 of file TParticle.cxx.
TParticle::TParticle | ( | Int_t | pdg, |
Int_t | status, | ||
Int_t | mother1, | ||
Int_t | mother2, | ||
Int_t | daughter1, | ||
Int_t | daughter2, | ||
const TLorentzVector & | p, | ||
const TLorentzVector & | v | ||
) |
constructor
Definition at line 98 of file TParticle.cxx.
TParticle::TParticle | ( | const TParticle & | part | ) |
copy constructor
Definition at line 119 of file TParticle.cxx.
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destructor
Definition at line 171 of file TParticle.cxx.
Int_t TParticle::Beauty | ( | ) | const |
Return beauty quantum number.
Definition at line 186 of file TParticle.cxx.
Int_t TParticle::Charm | ( | ) | const |
Return charm quantum number.
Definition at line 194 of file TParticle.cxx.
Compute distance from point px,py to a primary track.
Compute the closest distance of approach from point px,py to each segment of a track. The distance is computed in pixels units. ß
Reimplemented from TObject.
Definition at line 215 of file TParticle.cxx.
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Definition at line 123 of file TParticle.h.
Referenced by TGenerator::Draw().
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Definition at line 124 of file TParticle.h.
Execute action corresponding to one event.
Reimplemented from TObject.
Definition at line 249 of file TParticle.cxx.
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Definition at line 98 of file TParticle.h.
Definition at line 96 of file TParticle.h.
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Definition at line 95 of file TParticle.h.
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Definition at line 91 of file TParticle.h.
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Definition at line 97 of file TParticle.h.
Double_t TParticle::GetMass | ( | ) | const |
Return nominal particle mass from PDG table.
Definition at line 178 of file TParticle.cxx.
Definition at line 92 of file TParticle.h.
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Return particle name.
Reimplemented from TObject.
Definition at line 257 of file TParticle.cxx.
Referenced by Print(), and TEveTrack::TEveTrack().
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Definition at line 100 of file TParticle.h.
TParticlePDG * TParticle::GetPDG | ( | Int_t | mode = 0 | ) | const |
Returns a pointer to the TParticlePDG object using the pdgcode.
Definition at line 273 of file TParticle.cxx.
Referenced by Beauty(), Charm(), TGenerator::Draw(), GetMass(), Strangeness(), and TEveTrack::TEveTrack().
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Definition at line 90 of file TParticle.h.
Return particle polarisation.
Definition at line 284 of file TParticle.cxx.
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Definition at line 93 of file TParticle.h.
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Definition at line 89 of file TParticle.h.
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Definition at line 101 of file TParticle.h.
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Definition at line 94 of file TParticle.h.
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Definition at line 107 of file TParticle.h.
Equal operator.
Definition at line 134 of file TParticle.cxx.
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Definition at line 121 of file TParticle.h.
Referenced by DistancetoPrimitive(), Eta(), Paint(), Sizeof3D(), and Theta().
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Definition at line 136 of file TParticle.h.
Print the internals of the primary vertex particle.
Reimplemented from TObject.
Definition at line 340 of file TParticle.cxx.
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Definition at line 108 of file TParticle.h.
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Definition at line 122 of file TParticle.h.
Referenced by TGenerator::Draw().
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Definition at line 118 of file TParticle.h.
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Definition at line 119 of file TParticle.h.
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Definition at line 120 of file TParticle.h.
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Definition at line 116 of file TParticle.h.
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Definition at line 117 of file TParticle.h.
Definition at line 147 of file TParticle.h.
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Definition at line 145 of file TParticle.h.
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Definition at line 144 of file TParticle.h.
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Definition at line 141 of file TParticle.h.
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Definition at line 146 of file TParticle.h.
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Definition at line 143 of file TParticle.h.
Definition at line 153 of file TParticle.h.
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Definition at line 154 of file TParticle.h.
Referenced by SetMomentum().
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Definition at line 142 of file TParticle.h.
Change the PDG code for this particle.
Get a new pointer to a TParticlePDG from TDatabasePDG. Recompute the mass.
Definition at line 353 of file TParticle.cxx.
Referenced by TParticle().
Definition at line 150 of file TParticle.h.
Referenced by SetPolarisation().
Definition at line 155 of file TParticle.h.
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Definition at line 156 of file TParticle.h.
Referenced by SetProductionVertex().
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Definition at line 151 of file TParticle.h.
Definition at line 152 of file TParticle.h.
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Return total X3D size of this primary.
Reimplemented from TAtt3D.
Definition at line 389 of file TParticle.cxx.
Int_t TParticle::Strangeness | ( | ) | const |
Return strangeness quantum number.
Definition at line 202 of file TParticle.cxx.
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Definition at line 115 of file TParticle.h.
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Definition at line 137 of file TParticle.h.
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Definition at line 112 of file TParticle.h.
Referenced by TGenerator::Draw(), Paint(), and Print().
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Definition at line 113 of file TParticle.h.
Referenced by TGenerator::Draw(), Paint(), and Print().
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Definition at line 114 of file TParticle.h.
Referenced by TGenerator::Draw(), Paint(), and Print().
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Definition at line 130 of file TParticle.h.
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Definition at line 45 of file TParticle.h.
Referenced by GetCalcMass(), operator=(), SetCalcMass(), and SetPdgCode().
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Definition at line 42 of file TParticle.h.
Referenced by GetDaughter(), GetFirstDaughter(), GetLastDaughter(), GetNDaughters(), operator=(), SetDaughter(), SetFirstDaughter(), SetLastDaughter(), and TParticle().
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Definition at line 50 of file TParticle.h.
Referenced by Energy(), Momentum(), operator=(), SetMomentum(), SetPdgCode(), and Y().
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Definition at line 41 of file TParticle.h.
Referenced by GetFirstMother(), GetMother(), GetSecondMother(), IsPrimary(), operator=(), Print(), SetFirstMother(), SetLastMother(), SetMother(), and TParticle().
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Definition at line 60 of file TParticle.h.
Referenced by GetPDG(), operator=(), and SetPdgCode().
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Definition at line 39 of file TParticle.h.
Referenced by GetName(), GetPDG(), GetPdgCode(), GetTitle(), operator=(), TEveMCTrack::ResetPdgCode(), and SetPdgCode().
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Definition at line 58 of file TParticle.h.
Referenced by GetPolarisation(), operator=(), and SetPolarisation().
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Definition at line 57 of file TParticle.h.
Referenced by GetPolarisation(), operator=(), and SetPolarisation().
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Definition at line 47 of file TParticle.h.
Referenced by DistancetoPrimitive(), Momentum(), operator=(), P(), Phi(), Pt(), Px(), SetMomentum(), and SetPdgCode().
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Definition at line 48 of file TParticle.h.
Referenced by DistancetoPrimitive(), Momentum(), operator=(), P(), Phi(), Pt(), Py(), SetMomentum(), and SetPdgCode().
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Definition at line 49 of file TParticle.h.
Referenced by DistancetoPrimitive(), Eta(), Momentum(), operator=(), P(), Pz(), SetMomentum(), SetPdgCode(), Theta(), and Y().
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Definition at line 40 of file TParticle.h.
Referenced by GetStatusCode(), operator=(), and SetStatusCode().
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Definition at line 55 of file TParticle.h.
Referenced by operator=(), ProductionVertex(), SetProductionVertex(), and T().
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Definition at line 52 of file TParticle.h.
Referenced by DistancetoPrimitive(), operator=(), ProductionVertex(), R(), Rho(), SetProductionVertex(), and Vx().
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Definition at line 53 of file TParticle.h.
Referenced by DistancetoPrimitive(), operator=(), ProductionVertex(), R(), Rho(), SetProductionVertex(), and Vy().
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Definition at line 54 of file TParticle.h.
Referenced by DistancetoPrimitive(), operator=(), ProductionVertex(), Rho(), SetProductionVertex(), and Vz().
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Definition at line 43 of file TParticle.h.
Referenced by GetWeight(), operator=(), and SetWeight().