UEAnalysis Class Reference

Class to study underlying events. Currently the UE is studied for events with at least one jet, e.g. QCD 2->2, pp->W+jet, pp->Z+jet. Extension to DrellYan events will follow. Examples to generate e.g events are given in the specific generator directory, e.g. examples/pythia6 ; the histogramm output is stored in the UE folder of the root file. More...

#include <UEAnalysis.h>

Inheritance diagram for UEAnalysis:

List of all members.

Public Member Functions
	UEAnalysis ()
	empty default constructor
virtual	~UEAnalysis ()
	empty default destructor
virtual int	Init (double tr_max_eta, double tr_min_pt)
virtual int	Process (HepMC::GenEvent *hepmcevt)
virtual int	Finalize (TFile *output)
virtual std::vector< TH1D * >	averagedHistograms ()
Private Attributes
TH1D *	m_NchargedToward [26]
TH1D *	m_NchargedTransverse [26]
TH1D *	m_NchargedAway [26]
TH1D *	m_NchargedMeanToward
TH1D *	m_NchargedMeanTransverse
TH1D *	m_NchargedMeanAway
TH1D *	m_PtsumToward [26]
TH1D *	m_PtsumTransverse [26]
TH1D *	m_PtsumAway [26]
TH1D *	m_PtsumMeanToward
TH1D *	m_PtsumMeanTransverse
TH1D *	m_PtsumMeanAway
TH1D *	m_Njet
TH1D *	m_Ptjet
TH1D *	m_Ptjet_log
TH1D *	m_Ptleadingjet
TH1D *	m_Ptleadingjet_log
TH1D *	m_charged_particle_pt
int	m_nbin_pT
double	m_nbinRange_pT [26]

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Detailed Description

Class to study underlying events. Currently the UE is studied for events with at least one jet, e.g. QCD 2->2, pp->W+jet, pp->Z+jet. Extension to DrellYan events will follow. Examples to generate e.g events are given in the specific generator directory, e.g. examples/pythia6 ; the histogramm output is stored in the UE folder of the root file.

Author:

Sebastian Johnert, Judith Katzy, Zhonghua Qin Dec 2008

Definition at line 25 of file UEAnalysis.h.

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Constructor & Destructor Documentation

UEAnalysis::UEAnalysis (   )

empty default constructor Definition at line 32 of file UEAnalysis.cc.

UEAnalysis::~UEAnalysis (   )  [virtual]

empty default destructor Definition at line 37 of file UEAnalysis.cc.

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Member Function Documentation

std::vector< TH1D * > UEAnalysis::averagedHistograms (   )  [virtual]

averagedHistograms: function to calculate averaged histograms for the UE analysis Reimplemented from baseAnalysis. Definition at line 245 of file UEAnalysis.cc. References m_NchargedAway, m_NchargedMeanAway, m_NchargedMeanToward, m_NchargedMeanTransverse, m_NchargedToward, m_NchargedTransverse, m_PtsumAway, m_PtsumMeanAway, m_PtsumMeanToward, m_PtsumMeanTransverse, m_PtsumToward, and m_PtsumTransverse. Referenced by Finalize().

int UEAnalysis::Finalize (  TFile *  output  )  [virtual]

In the final step all the histogramms are stored in a rootfile. The name of the rootfile can be set with the function setOutpuFileName(const char* filename). Reimplemented from baseAnalysis. Definition at line 273 of file UEAnalysis.cc. References averagedHistograms(), and baseAnalysis::Finalize().

int UEAnalysis::Init (  double  tr_max_eta, double  tr_min_pt )  [virtual]

Reimplemented from baseAnalysis. Definition at line 41 of file UEAnalysis.cc. References baseAnalysis::initHist(), baseAnalysis::initHistVariableBin(), m_charged_particle_pt, m_nbin_pT, m_nbinRange_pT, m_NchargedAway, m_NchargedMeanAway, m_NchargedMeanToward, m_NchargedMeanTransverse, m_NchargedToward, m_NchargedTransverse, m_Njet, m_Ptjet, m_Ptjet_log, m_Ptleadingjet, m_Ptleadingjet_log, m_PtsumAway, m_PtsumMeanAway, m_PtsumMeanToward, m_PtsumMeanTransverse, m_PtsumToward, and m_PtsumTransverse.

int UEAnalysis::Process (  HepMC::GenEvent *  hepmcevt  )  [virtual]

Reimplemented from baseAnalysis. Definition at line 124 of file UEAnalysis.cc. References baseAnalysis::chargedParticle(), e, baseAnalysis::IsFinalStateParticle(), m_charged_particle_pt, m_nbinRange_pT, m_NchargedAway, m_NchargedToward, m_NchargedTransverse, m_Njet, m_Ptjet, m_Ptjet_log, m_Ptleadingjet, m_Ptleadingjet_log, m_PtsumAway, m_PtsumToward, m_PtsumTransverse, PI, and py.

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Member Data Documentation

TH1D* UEAnalysis::m_charged_particle_pt [private]

Definition at line 63 of file UEAnalysis.h. Referenced by Init(), and Process().

int UEAnalysis::m_nbin_pT [private]

definition for the variable bin size for the <ncharged> vs pT calculation Definition at line 66 of file UEAnalysis.h. Referenced by Init().

double UEAnalysis::m_nbinRange_pT[26] [private]

Definition at line 68 of file UEAnalysis.h. Referenced by Init(), and Process().

TH1D* UEAnalysis::m_NchargedAway[26] [private]

Definition at line 42 of file UEAnalysis.h. Referenced by averagedHistograms(), Init(), and Process().

TH1D* UEAnalysis::m_NchargedMeanAway [private]

Definition at line 46 of file UEAnalysis.h. Referenced by averagedHistograms(), and Init().

TH1D* UEAnalysis::m_NchargedMeanToward [private]

Definition at line 44 of file UEAnalysis.h. Referenced by averagedHistograms(), and Init().

TH1D* UEAnalysis::m_NchargedMeanTransverse [private]

Definition at line 45 of file UEAnalysis.h. Referenced by averagedHistograms(), and Init().

TH1D* UEAnalysis::m_NchargedToward[26] [private]

Definition at line 40 of file UEAnalysis.h. Referenced by averagedHistograms(), Init(), and Process().

TH1D* UEAnalysis::m_NchargedTransverse[26] [private]

Definition at line 41 of file UEAnalysis.h. Referenced by averagedHistograms(), Init(), and Process().

TH1D* UEAnalysis::m_Njet [private]

Definition at line 57 of file UEAnalysis.h. Referenced by Init(), and Process().

TH1D* UEAnalysis::m_Ptjet [private]

Definition at line 58 of file UEAnalysis.h. Referenced by Init(), and Process().

TH1D* UEAnalysis::m_Ptjet_log [private]

Definition at line 59 of file UEAnalysis.h. Referenced by Init(), and Process().

TH1D* UEAnalysis::m_Ptleadingjet [private]

Definition at line 60 of file UEAnalysis.h. Referenced by Init(), and Process().

TH1D* UEAnalysis::m_Ptleadingjet_log [private]

Definition at line 61 of file UEAnalysis.h. Referenced by Init(), and Process().

TH1D* UEAnalysis::m_PtsumAway[26] [private]

Definition at line 50 of file UEAnalysis.h. Referenced by averagedHistograms(), Init(), and Process().

TH1D* UEAnalysis::m_PtsumMeanAway [private]

Definition at line 54 of file UEAnalysis.h. Referenced by averagedHistograms(), and Init().

TH1D* UEAnalysis::m_PtsumMeanToward [private]

Definition at line 52 of file UEAnalysis.h. Referenced by averagedHistograms(), and Init().

TH1D* UEAnalysis::m_PtsumMeanTransverse [private]

Definition at line 53 of file UEAnalysis.h. Referenced by averagedHistograms(), and Init().

TH1D* UEAnalysis::m_PtsumToward[26] [private]

Definition at line 48 of file UEAnalysis.h. Referenced by averagedHistograms(), Init(), and Process().

TH1D* UEAnalysis::m_PtsumTransverse[26] [private]

Definition at line 49 of file UEAnalysis.h. Referenced by averagedHistograms(), Init(), and Process().

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The documentation for this class was generated from the following files:

• include/UEAnalysis.h
• src/UEAnalysis.cc

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