/data/doxygen/doxygen-1.7.3/gen/CMSSW_4_2_8/src/CalibCalorimetry/EcalTPGTools/plugins/EcalTPGParamBuilder.cc File Reference

#include "EcalTPGParamBuilder.h"
#include "CalibCalorimetry/EcalTPGTools/plugins/EcalTPGDBApp.h"
#include "Geometry/CaloGeometry/interface/CaloGeometry.h"
#include "Geometry/CaloGeometry/interface/CaloSubdetectorGeometry.h"
#include "Geometry/CaloGeometry/interface/CaloCellGeometry.h"
#include "Geometry/Records/interface/CaloGeometryRecord.h"
#include "Geometry/EcalMapping/interface/EcalElectronicsMapping.h"
#include "Geometry/EcalMapping/interface/EcalMappingRcd.h"
#include "DataFormats/EcalDetId/interface/EcalSubdetector.h"
#include "DataFormats/EcalDetId/interface/EBDetId.h"
#include "DataFormats/EcalDetId/interface/EEDetId.h"
#include "CondFormats/DataRecord/interface/EcalIntercalibConstantsRcd.h"
#include "CondFormats/EcalObjects/interface/EcalADCToGeVConstant.h"
#include "CondFormats/DataRecord/interface/EcalADCToGeVConstantRcd.h"
#include "CondFormats/EcalObjects/interface/EcalMGPAGainRatio.h"
#include "CondFormats/DataRecord/interface/EcalGainRatiosRcd.h"
#include "CondFormats/DataRecord/interface/EcalPedestalsRcd.h"
#include "SimCalorimetry/EcalSimAlgos/interface/EcalSimParameterMap.h"
#include "SimCalorimetry/EcalSimAlgos/interface/EBShape.h"
#include "SimCalorimetry/EcalSimAlgos/interface/EEShape.h"
#include <iostream>
#include <string>
#include <sstream>
#include <vector>
#include <time.h>
#include <TF1.h>
#include <TH2F.h>
#include <TFile.h>
#include <TNtuple.h>
#include <iomanip>
#include <fstream>

Go to the source code of this file.

Functions
double	oneOverEtResolEt (double *x, double *par)

---

Function Documentation

double oneOverEtResolEt	(	double *	x,
		double *	par
	)

Definition at line 45 of file EcalTPGParamBuilder.cc.

References mathSSE::sqrt().

Referenced by EcalTPGParamBuilder::computeLUT().

                                                { 
  double Et = x[0] ;
  if (Et<1e-6) return 1./par[1] ; // to avoid division by 0.
  double resolEt_overEt = sqrt( (par[0]/sqrt(Et))*(par[0]/sqrt(Et)) + (par[1]/Et)*(par[1]/Et) + par[2]*par[2] ) ;
  return 1./(Et*resolEt_overEt) ;
}