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class AtlBDecayGenTool: public AtlAnalysisTool


 A++ tool for generating semileptonic B-meson decays for fake lepton
 studies

 The tool runs in 'pre-analysis' mode (see AtlAnalysisTool and
 AtlSelector for details), ie. after object defintion/selection
 and event scaling

 !!! IMPORTANT !!! The tool has to be run _after_ the object
 selection&definition tool, because otherwise the required b-jets
 are not yet defined.

 The tool is only active for the given list of valid DSIDs.

 Example:

    // B-meson decay generation tool
    AtlBDecayGenTool *tool_bdecay = new AtlBDecayGenTool("BDecayGenTool", "B-meson decay generation");
    main->AddTool(tool_bdecay);
    main->SetToolParameter("BDecayGenTool", "fValidDSIDs", "\"361106,361107,361108\"");

 Leptons are generated only if at least one b-jet is present in the
 event which can serve as parent jet. If more than one b-jet exists,
 the parent jet can be picked in several ways, see the data member
 fBJetMode (default=random).

 For a better modelling an overlap removal of the parent jet can be
 performed (see public data member fDoOverlapRemoval, default=true).
 If the DeltaR between the generated lepton and its parent jet is
 smaller than the value given in fORdeltaR_max (default=0.4), the
 parent jet will be removed.

 !!! IMPORTANT !!! In case of the overlap removal the jet is removed
 only from the jet and b-jet lists of the object definition tool.
 These are the very same lists used by this tool and the analysis
 selector. However, the jet is _not_ removed from the corresponding
 TClonesArray of the A++ event record, nor is the number of jet
 variable of the A++ event changed.

 Author:  <mailto: kind@mail.desy.de>
 Update: $Id: AtlBDecayGenTool.cxx,v 1.12 2017/07/27 13:48:22 mergelm Exp $
 Copyright: 2017 (C)

Function Members (Methods)

public:

virtual	~AtlBDecayGenTool()
void	TObject::AbstractMethod(const char* method) const
virtual void	TObject::AppendPad(Option_t* option = "")
	AtlBDecayGenTool(const AtlBDecayGenTool&)
	AtlBDecayGenTool(const char* name, const char* title)
virtual void	TObject::Browse(TBrowser* b)
static TClass*	Class()
virtual const char*	TObject::ClassName() const
virtual void	AtlAnalysisTool::Clear()
virtual TObject*	TNamed::Clone(const char* newname = "") const
virtual Int_t	TNamed::Compare(const TObject* obj) const
virtual void	TNamed::Copy(TObject& named) const
virtual void	TObject::Delete(Option_t* option = "")MENU
virtual Int_t	TObject::DistancetoPrimitive(Int_t px, Int_t py)
virtual void	TObject::Draw(Option_t* option = "")
virtual void	TObject::DrawClass() constMENU
virtual TObject*	TObject::DrawClone(Option_t* option = "") constMENU
virtual void	TObject::Dump() constMENU
virtual void	TObject::Error(const char* method, const char* msgfmt) const
virtual void	TObject::Execute(const char* method, const char* params, Int_t* error = 0)
virtual void	TObject::Execute(TMethod* method, TObjArray* params, Int_t* error = 0)
virtual void	TObject::ExecuteEvent(Int_t event, Int_t px, Int_t py)
virtual void	TObject::Fatal(const char* method, const char* msgfmt) const
virtual void	TNamed::FillBuffer(char*& buffer)
virtual void	AtlAnalysisTool::FillHistogramsNoEvtSel()
virtual TObject*	TObject::FindObject(const char* name) const
virtual TObject*	TObject::FindObject(const TObject* obj) const
const char*	GetBJetModeName(AtlBDecayGenTool::EBJetMode BJetMode) const
virtual Option_t*	TObject::GetDrawOption() const
static Long_t	TObject::GetDtorOnly()
virtual const char*	TObject::GetIconName() const
virtual const char*	TNamed::GetName() const
virtual char*	TObject::GetObjectInfo(Int_t px, Int_t py) const
static Bool_t	TObject::GetObjectStat()
virtual Option_t*	TObject::GetOption() const
const char*	AtlAnalysisTool::GetOutputDir() const
Float_t	AtlAnalysisTool::GetPreTagEvtWeight() const
static const char*	AtlAnalysisTool::GetProcessModeName(AtlAnalysisTool::EProcessMode mode)
Float_t	AtlAnalysisTool::GetTagEvtWeight() const
virtual const char*	TNamed::GetTitle() const
AtlAnalysisTool*	AtlAnalysisTool::GetTool(const char* ClassName, const char* ToolName = "", Bool_t force = kFALSE) const
virtual UInt_t	TObject::GetUniqueID() const
virtual Bool_t	TObject::HandleTimer(TTimer* timer)
virtual ULong_t	TNamed::Hash() const
virtual void	TObject::Info(const char* method, const char* msgfmt) const
virtual Bool_t	TObject::InheritsFrom(const char* classname) const
virtual Bool_t	TObject::InheritsFrom(const TClass* cl) const
virtual void	TObject::Inspect() constMENU
void	TObject::InvertBit(UInt_t f)
virtual TClass*	IsA() const
virtual Bool_t	TObject::IsEqual(const TObject* obj) const
virtual Bool_t	TObject::IsFolder() const
Bool_t	AtlAnalysisTool::IsIndividual() const
Bool_t	AtlAnalysisTool::IsMainAnalysis() const
Bool_t	AtlAnalysisTool::IsObjectsDefinition() const
Bool_t	AtlAnalysisTool::IsOff() const
Bool_t	TObject::IsOnHeap() const
Bool_t	AtlAnalysisTool::IsPostAnalysis() const
Bool_t	AtlAnalysisTool::IsPreAnalysis() const
Bool_t	AtlAnalysisTool::IsScaleFactor() const
virtual Bool_t	TNamed::IsSortable() const
Bool_t	AtlAnalysisTool::IsSystematics() const
Bool_t	TObject::IsZombie() const
virtual void	TNamed::ls(Option_t* option = "") const
void	TObject::MayNotUse(const char* method) const
virtual Bool_t	AtlAnalysisTool::Notify()
void	TObject::Obsolete(const char* method, const char* asOfVers, const char* removedFromVers) const
void	TObject::operator delete(void* ptr)
void	TObject::operator delete(void* ptr, void* vp)
void	TObject::operator delete[](void* ptr)
void	TObject::operator delete[](void* ptr, void* vp)
void*	TObject::operator new(size_t sz)
void*	TObject::operator new(size_t sz, void* vp)
void*	TObject::operator new[](size_t sz)
void*	TObject::operator new[](size_t sz, void* vp)
AtlBDecayGenTool&	operator=(const AtlBDecayGenTool&)
virtual void	TObject::Paint(Option_t* option = "")
virtual void	TObject::Pop()
Bool_t	AtlAnalysisTool::Process()
virtual Int_t	TObject::Read(const char* name)
virtual void	TObject::RecursiveRemove(TObject* obj)
void	TObject::ResetBit(UInt_t f)
virtual void	TObject::SaveAs(const char* filename = "", Option_t* option = "") constMENU
virtual void	TObject::SavePrimitive(ostream& out, Option_t* option = "")
void	TObject::SetBit(UInt_t f)
void	TObject::SetBit(UInt_t f, Bool_t set)
virtual void	TObject::SetDrawOption(Option_t* option = "")MENU
static void	TObject::SetDtorOnly(void* obj)
void	AtlAnalysisTool::SetEvent(AtlEvent* evt)
virtual void	TNamed::SetName(const char* name)MENU
virtual void	TNamed::SetNameTitle(const char* name, const char* title)
static void	TObject::SetObjectStat(Bool_t stat)
void	AtlAnalysisTool::SetOutputDir(const char* dir)
void	AtlAnalysisTool::SetOutputFile(TFile* f)
void	AtlAnalysisTool::SetParent(AtlSelector* parent)
virtual void	TNamed::SetTitle(const char* title = "")MENU
void	AtlAnalysisTool::SetTree(TTree* t)
virtual void	TObject::SetUniqueID(UInt_t uid)
virtual void	ShowMembers(TMemberInspector& insp) const
virtual Int_t	TNamed::Sizeof() const
virtual void	Streamer(TBuffer&)
void	StreamerNVirtual(TBuffer& ClassDef_StreamerNVirtual_b)
virtual void	TObject::SysError(const char* method, const char* msgfmt) const
Bool_t	TObject::TestBit(UInt_t f) const
Int_t	TObject::TestBits(UInt_t f) const
virtual void	TObject::UseCurrentStyle()
virtual void	TObject::Warning(const char* method, const char* msgfmt) const
virtual Int_t	TObject::Write(const char* name = 0, Int_t option = 0, Int_t bufsize = 0)
virtual Int_t	TObject::Write(const char* name = 0, Int_t option = 0, Int_t bufsize = 0) const

protected:

virtual Bool_t	AnalyzeEvent()
virtual void	BookHistograms()
virtual void	TObject::DoError(int level, const char* location, const char* fmt, va_list va) const
virtual void	FillHistograms()
virtual void	Init()
void	TObject::MakeZombie()
virtual void	Print() const
virtual void	SetBranchStatus()
virtual void	SetCutDefaults()
virtual void	Terminate()

private:

Bool_t	AddLeptons()
void	CreateHistGen()
HepParticle*	GenerateBDecay(TLorentzVector p_mother, HepParticle* lep)
void	SetDSIDArray()

Data Members

public:

AtlBDecayGenTool::EBJetMode	fBJetMode	Define how to pick the parent b-jet in case of more than one b-jets (default=random)
Bool_t	fDoOverlapRemoval	Perform overlap removal of accompanying b-jet (default=true)
Float_t	fORdeltaR_max	Maximum deltaR used for the overlap removal (default=0.4)
TString	AtlAnalysisTool::fOutputDir	Directory in root output file, where histogram dir is created
AtlAnalysisTool::EProcessMode	AtlAnalysisTool::fProcessMode	Defines when exactly the tool is run (see AtlAnalysisTool class description for details)
Bool_t	fRequireOverlapRemoval	Reject event if overlap removal fails
const char*	fValidDSIDs	Comma separated list of valid DSID numbers for which the tool will be enabled; for all other samples the won't run
Int_t	AtlAnalysisTool::fVerbosityLevel	Indicates the degree of verbosity of tool (0 = no info/debug output, 1 = info, 2 = info+debug)
static const Int_t	fgNDSIDsMax
static TObject::(anonymous)	TObject::kBitMask
static TObject::EStatusBits	TObject::kCanDelete
static TObject::EStatusBits	TObject::kCannotPick
static AtlBDecayGenTool::EBJetMode	kHalfRandom
static TObject::EStatusBits	TObject::kHasUUID
static AtlBDecayGenTool::EBJetMode	kHighPt
static AtlAnalysisTool::EProcessMode	AtlAnalysisTool::kIndividual
static TObject::EStatusBits	TObject::kInvalidObject
static TObject::(anonymous)	TObject::kIsOnHeap
static TObject::EStatusBits	TObject::kIsReferenced
static AtlBDecayGenTool::EBJetMode	kLowPt
static AtlAnalysisTool::EProcessMode	AtlAnalysisTool::kMainAnalysis
static TObject::EStatusBits	TObject::kMustCleanup
static AtlBDecayGenTool::EBJetMode	kNBJetModes
static TObject::EStatusBits	TObject::kNoContextMenu
static TObject::(anonymous)	TObject::kNotDeleted
static TObject::EStatusBits	TObject::kObjInCanvas
static AtlAnalysisTool::EProcessMode	AtlAnalysisTool::kObjectsDefinition
static AtlAnalysisTool::EProcessMode	AtlAnalysisTool::kOff
static TObject::(anonymous)	TObject::kOverwrite
static AtlAnalysisTool::EProcessMode	AtlAnalysisTool::kPostAnalysis
static AtlAnalysisTool::EProcessMode	AtlAnalysisTool::kPreAnalysis
static AtlBDecayGenTool::EBJetMode	kRandom
static AtlAnalysisTool::EProcessMode	AtlAnalysisTool::kScaleFactor
static TObject::(anonymous)	TObject::kSingleKey
static AtlAnalysisTool::EProcessMode	AtlAnalysisTool::kSystematics
static TObject::(anonymous)	TObject::kWriteDelete
static TObject::(anonymous)	TObject::kZombie

protected:

AtlEvent*	AtlAnalysisTool::fEvent	Pointer to current event
TString	TNamed::fName	object identifier
TString*	AtlAnalysisTool::fOption	Option string
TFile*	AtlAnalysisTool::fOutputFile	Output file
AtlSelector*	AtlAnalysisTool::fParent	Pointer to parent selector
TString	TNamed::fTitle	object title
TTree*	AtlAnalysisTool::fTree	Event tree

private:

TList*	fBJets	List of b-jets
UInt_t	fDSID[256]	Array of valid DSID numbers
TList*	fElectrons	List of electrons
Bool_t	fFirstEvt	First event ?
TH1F*	fHistAlphaLab	Histogram of alpha, lab frame
TH1F*	fHistAlphaLoc	Histogram of alpha, local
TH1F*	fHistDeltaR	Histogram of deltaR between the generated lepton and its parent jet
TH1F*	fHistEtaLab	Histogram of eta, lab frame
TH2D*	fHistGen	Histogram for decay angle / energy generation
TH1F*	fHistPhiLab	Histogram of phi, lab frame
TH1F*	fHistPhiLoc	Histogram of phi, local
TH1F*	fHistPmagLab	Histogram of P magnitude, lab frame
TH1F*	fHistPmagLoc	Histogram of P magnitude, local
TH1F*	fHistPtLab	Histogram of Pt, lab frame
TH1F*	fHistPtLoc	Histogram of Pt, local
TH1F*	fHistPzLab	Histogram of Pz, lab frame
TH1F*	fHistPzLoc	Histogram of Pz, local
TList*	fJets	List of jets
TList*	fLeptons	List of leptons
TList*	fMuons	List of muons
Int_t	fNDSIDs	Number of given valid DSIDs
TRandom*	fRandom	Random generator

Class Charts

Inheritance Chart:

TObject

←

TNamed

←

AtlAnalysisTool

←

AtlBDecayGenTool

Function documentation

AtlBDecayGenTool(const char* name, const char* title)

 Default constructor

~AtlBDecayGenTool()

 Default destructor

void Init()

 Get b-jet list from object definition tool

void SetBranchStatus()

 Switch on needed branches

void SetCutDefaults()

 Selection cut defaults

const char* GetBJetModeName(AtlBDecayGenTool::EBJetMode BJetMode) const

 Get name of current b-jet pick mode

void BookHistograms()

 Book histograms

Bool_t AnalyzeEvent()

 Invocation of tool

void Print() const

 Print tool configuration

void Terminate()

 Executed at the end of the tool

    AtlAnalysisTool::Terminate();

void SetDSIDArray()

 Setup DSID array from DSID string

Bool_t AddLeptons()

 Generate a lepton from a semileptonic B-meson decay for the
 leading b-jet and add it to the A++ event record as well as to
 the lepton lists of the analysis selector

HepParticle* GenerateBDecay(TLorentzVector p_mother, HepParticle* lep)

 Generate lepton from B-meson decay

 If the lepton pointer is 0, a new lepton will be added to
 the current event - otherwise the given lepton momentum vector
 will be changed. The lepton pointer is returned.

void CreateHistGen()

 Create histogram for decay angle / energy generation

AtlBDecayGenTool(const char* name, const char* title)

void FillHistograms()

{;}