ATLAS Offline Software
Public Member Functions | Private Attributes | List of all members
corr_pileupShift Class Reference

Correction for pileup induced energy shit as function of mu per layer for 2016 data. More...

#include <corr_pileupShift.h>

Collaboration diagram for corr_pileupShift:

Public Member Functions

 corr_pileupShift ()
 constructor (initialization done there reading a root file for the HV maps per period More...
 
 ~corr_pileupShift ()
 
float getCorr (int layer, int run, float mu, float eta) const
 get shift to subtract to raw layer energy : corrected layer energy = raw energy - shift
More...
 

Private Attributes

int m_runMin
 
int m_runMax
 
TH1D * m_haverage [4] {}
 
TFile * m_file
 

Detailed Description

Correction for pileup induced energy shit as function of mu per layer for 2016 data.

Author
: Guillaume Unal

Definition at line 13 of file corr_pileupShift.h.

Constructor & Destructor Documentation

◆ corr_pileupShift()

corr_pileupShift::corr_pileupShift ( )

constructor (initialization done there reading a root file for the HV maps per period

Definition at line 13 of file corr_pileupShift.cxx.

13  {
14 
15  std::string filename = PathResolverFindCalibFile("egammaLayerRecalibTool/v2/layer_average.root");
16 
17  m_file = TFile::Open(filename.c_str());
18  if (not m_file or m_file->IsZombie()) {
19  std::cerr << "FATAL: cannot open " << filename << std::endl;
20  }
21  else {
22  for (int layer=0;layer<4;layer++) {
23  char name[12];
24  snprintf(name,sizeof(name),"average_%d",layer);
25  m_haverage[layer]=(TH1D*) (m_file->Get(name));
26  if (not m_haverage[layer]) {
27  std::cerr << "FATAL: cannot find " << name << std::endl;
28  }
29  }
30  }
31  m_runMin=296939;
32  m_runMax=311563;
33 }

◆ ~corr_pileupShift()

corr_pileupShift::~corr_pileupShift ( )

Definition at line 35 of file corr_pileupShift.cxx.

36 {
37  m_file->Close();
38 }

Member Function Documentation

◆ getCorr()

float corr_pileupShift::getCorr ( int  layer,
int  run,
float  mu,
float  eta 
) const

get shift to subtract to raw layer energy : corrected layer energy = raw energy - shift

inputs: layer (0 to 3), run (run number), mu (average number of interactions per crossing) and eta

Definition at line 41 of file corr_pileupShift.cxx.

42 {
43 
44  if (layer<0 || layer>3) return 0.;
45  if (run<m_runMin || run>m_runMax) return 0.;
46  double aeta=std::fabs(eta);
47  if (aeta> 2.5) return 0.;
48  if (aeta>2.37) aeta=2.37;
49 
50  int ibin = std::as_const(*m_haverage[layer]).GetXaxis()->FindFixBin(aeta);
51  float corr = mu * m_haverage[layer]->GetBinContent(ibin);
52 
53  return corr;
54 
55 }

Member Data Documentation

◆ m_file

TFile* corr_pileupShift::m_file
private

Definition at line 31 of file corr_pileupShift.h.

◆ m_haverage

TH1D* corr_pileupShift::m_haverage[4] {}
private

Definition at line 30 of file corr_pileupShift.h.

◆ m_runMax

int corr_pileupShift::m_runMax
private

Definition at line 27 of file corr_pileupShift.h.

◆ m_runMin

int corr_pileupShift::m_runMin
private

Definition at line 27 of file corr_pileupShift.h.


The documentation for this class was generated from the following files:
corr_pileupShift::m_runMax
int m_runMax
Definition: corr_pileupShift.h:27
eta
Scalar eta() const
pseudorapidity method
Definition: AmgMatrixBasePlugin.h:83
TRT::Hit::layer
@ layer
Definition: HitInfo.h:79
name
std::string name
Definition: Control/AthContainers/Root/debug.cxx:240
PathResolverFindCalibFile
std::string PathResolverFindCalibFile(const std::string &logical_file_name)
Definition: PathResolver.cxx:283
CaloCellTimeCorrFiller.filename
filename
Definition: CaloCellTimeCorrFiller.py:23
corr_pileupShift::m_runMin
int m_runMin
Definition: corr_pileupShift.h:27
corr_pileupShift::m_haverage
TH1D * m_haverage[4]
Definition: corr_pileupShift.h:30
CaloNoise_fillDB.mu
mu
Definition: CaloNoise_fillDB.py:51
corr_pileupShift::m_file
TFile * m_file
Definition: corr_pileupShift.h:31