hf_egamma Namespace Reference

Functions
data refman pasoursint CMSSW_6_1_2_SLHC2_patch1 src RecoEgamma EgammaHFProducers plugins HFEGammaSLCorrector cc double	eSeLCorrected (double es, double el, double pc, double px, double py)
double	eSeLCorrected (double es, double el, double m, double b)
double	eSeLCorrected (double es, double el, int era)

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Function Documentation

data refman pasoursint CMSSW_6_1_2_SLHC2_patch1 src RecoEgamma EgammaHFProducers plugins HFEGammaSLCorrector cc double hf_egamma::eSeLCorrected	(	double	es,
		double	el,
		double	pc,
		double	px,
		double	py
	)

Definition at line 7 of file HFEGammaSLCorrector.cc.

Referenced by HFRecoEcalCandidateAlgo::produce().

                                                           {

double hf_egamma::eSeLCorrected	(	double	es,
		double	el,
		double	m,
		double	b
	)

double hf_egamma::eSeLCorrected	(	double	es,
		double	el,
		int	era
	)

Definition at line 13 of file HFEGammaSLCorrector.cc.

                             {  
                        case (0): //Data 41
                                pc = -1.02388e-1 ;
                                px = -1.51130e-1 ;
                                py =  9.88514e-1 ;
                                break;
                        case (1): //Fall 10 MC
                                pc = -4.06012e-2 ;
                                px = -1.34769e-1 ;
                                py =  9.90877e-1 ;
                                break;
                        case (2): //Spring 11 MC
                                pc =   5.98732e-3 ;
                                px =  -1.74767e-1 ;
                                py =   9.84610e-1 ;
                                break;
                        case (3): //Summer 11 MC
                                pc =  -0.036416 ;
                                px =  -0.195854 ;
                                py =  0.980633 ;
                                break;
                        case (4): //July 5 Data
                                pc = -0.008077 ;
                                px = -0.216002 ;
                                py = 0.976393 ;
                                break;
                }

                //After fitting the 2D histogram, we find a y-intercept b, a slope m, 
                //and a point x0 around which we choose to rotate the data points. We 
                //will map (x,y) --> (x,y') where y' = pc + px*x + py*y, with 
                //pc = sin(atan(m))*x0 - cos(atan(m))*(m*x0+b), px = -sin(atan(m)), 
                //and py = cos(atan(m)). This transformation preserves the x-value of the 
                //data point and takes y' to be the y-value of the original point after it 
                //is rotated through angle atan(m) (to flatten the line of best fit) and 
                //transposed vertically downward by b (to make the line of best fit coincide with the x-axis).

                return eSeLCorrected(es, el, pc, px, py) ;
        }
}