Roo4lMasses2D Class Reference

#include <HZZ4LRooPdfs.h>

Inheritance diagram for Roo4lMasses2D:

Public Member Functions
virtual TObject *	clone (const char *newname) const
	Roo4lMasses2D ()
	Roo4lMasses2D (const char *name, const char *title, RooAbsReal &_mZstar, RooAbsReal &_mZ, RooAbsReal &_mZZ, RooAbsReal &_Gamma, RooAbsReal &_p0, RooAbsReal &_p1, RooAbsReal &_p2, RooAbsReal &_CBmean, RooAbsReal &_CBwidth, RooAbsReal &_CBalpha, RooAbsReal &_CBn)
	Roo4lMasses2D (const Roo4lMasses2D &other, const char *name=0)
virtual	~Roo4lMasses2D ()

Protected Member Functions
Double_t	evaluate () const

Protected Attributes
RooRealProxy	CBalpha
RooRealProxy	CBmean
RooRealProxy	CBn
RooRealProxy	CBwidth
RooRealProxy	Gamma
RooRealProxy	mZ
RooRealProxy	mZstar
RooRealProxy	mZZ
RooRealProxy	p0
RooRealProxy	p1
RooRealProxy	p2

Detailed Description

Definition at line 310 of file HZZ4LRooPdfs.h.

Constructor & Destructor Documentation

Roo4lMasses2D::Roo4lMasses2D

(

)

Definition at line 2703 of file HZZ4LRooPdfs.cc.

Referenced by clone().

{}

Roo4lMasses2D::Roo4lMasses2D	(	const char *	name,
		const char *	title,
		RooAbsReal &	_mZstar,
		RooAbsReal &	_mZ,
		RooAbsReal &	_mZZ,
		RooAbsReal &	_Gamma,
		RooAbsReal &	_p0,
		RooAbsReal &	_p1,
		RooAbsReal &	_p2,
		RooAbsReal &	_CBmean,
		RooAbsReal &	_CBwidth,
		RooAbsReal &	_CBalpha,
		RooAbsReal &	_CBn
	)

Definition at line 2705 of file HZZ4LRooPdfs.cc.

                               :
RooAbsPdf(name,title), 
mZstar("mZstar","mZstar",this,_mZstar),
mZ("mZ","mZ",this,_mZ),
mZZ("mZZ","mZZ",this,_mZZ),
Gamma("Gamma","Gamma",this,_Gamma),
p0("p0","p0",this,_p0),
p1("p1","p1",this,_p1),
p2("p2","p2",this,_p2),
CBmean("CBmean","CBmean",this,_CBmean),
CBwidth("CBwidth","CBwidth",this,_CBwidth),
CBalpha("CBalpha","CBalpha",this,_CBalpha),
CBn("CBn","CBn",this,_CBn)

{ 
} 

Roo4lMasses2D::Roo4lMasses2D	(	const Roo4lMasses2D &	other,
		const char *	name = 0
	)

Definition at line 2735 of file HZZ4LRooPdfs.cc.

                                                                         :  
RooAbsPdf(other,name), 
mZstar("mZstar",this,other.mZstar),
mZ("mZ",this,other.mZ),
mZZ("mZZ",this,other.mZZ),
Gamma("Gamma",this,other.Gamma),
p0("p0",this,other.p0),
p1("p1",this,other.p1),
p2("p2",this,other.p2),
CBmean("CBmean"  ,this,other.CBmean),
CBwidth("CBwidth",this,other.CBwidth),
CBalpha("CBalpha",this,other.CBalpha),
CBn("CBn",this,other.CBn)

{ 
} 

virtual Roo4lMasses2D::~Roo4lMasses2D ( )

inlinevirtual

Definition at line 328 of file HZZ4LRooPdfs.h.

{ }

Member Function Documentation

virtual TObject* Roo4lMasses2D::clone ( const char *  newname ) const

inlinevirtual

Definition at line 327 of file HZZ4LRooPdfs.h.

References Roo4lMasses2D().

{ return new Roo4lMasses2D(*this,newname); }

double Roo4lMasses2D::evaluate ( ) const

protected

• • / CB Shape

Definition at line 2752 of file HZZ4LRooPdfs.cc.

References a, b, beta, CBalpha, CBmean, CBn, CBwidth, alignCSCRings::e, create_public_lumi_plots::exp, Gamma, mZ, mZstar, mZZ, p0, p1, p2, mathSSE::sqrt(), and lumiQTWidget::t.

{ 
    double mZstarDistribution;
    double Numerator,Denominator,beta;
    beta = (1-(mZstar-mZ)*(mZstar-mZ)/(mZZ*mZZ))*(1-(mZstar+mZ)*(mZstar+mZ)/(mZZ*mZZ));
    
    if(beta<0.0) return 1e-12;
    
    //Numerator = mZstar*mZstar*sqrt(beta)*(2+(mZstar*mZstar-mZZ*mZZ+mZ*mZ)*(mZstar*mZstar-mZZ*mZZ+mZ*mZ)/(4*mZstar*mZstar*mZ*mZ));
    Numerator = mZstar*mZstar*sqrt(beta)*(2+(mZstar*mZstar-mZZ*mZZ+mZ*mZ)*(mZstar*mZstar-mZZ*mZZ+mZ*mZ)/(4*mZstar*mZstar*mZ*mZ));
    Denominator = 2*(mZstar*mZstar-mZ*mZ)*(mZstar*mZstar-mZ*mZ)-2*mZ*mZ*Gamma*Gamma;
    
    //mZstarDistribution = Numerator/Denominator;
    mZstarDistribution = Numerator/Denominator;
    //*/
    //mZstarDistribution = 1;
    
    double acceptance = p0+p1*mZstar+p2*mZstar*mZstar;
    //double acceptance = 1;
    
    
    double mZZDistribution;
    /*
     Double_t arg= mZZ - CBmean;  
     Double_t ret =exp(-0.5*arg*arg/(CBwidth*CBwidth)) ;
     //cout << "gauss x = " << x << " mean = " << mean << " sigma = " << sigma << endl ;
     mZZDistribution = ret ;
     //*/
    double t = (mZZ-CBmean)/CBwidth;
    //std:cout << "CBwidth: " << CBwidth << " CBmean: " << CBmean << " mZZ: " << mZZ << std::endl;
    if (CBalpha < 0) t = -t;
    
    double absAlpha = fabs((double)CBalpha);
    
    //std::cout << "t = " << t << std::endl;
    if (t >= -absAlpha) {
        
        mZZDistribution = exp(-0.5*t*t);
        //std::cout << "Gaussian!! " << -.5*t*t << " : " << mZZDistribution << std::endl;
        
    }
    else {
        double a =  TMath::Power(CBn/absAlpha,CBn)*exp(-0.5*absAlpha*absAlpha);
        double b = CBn/absAlpha - absAlpha;
        
        //std::cout << "power!!! a: " << a << " b: " << b << endl;
        
        mZZDistribution = a/TMath::Power(b - t, CBn);
        
    }
    //*/
    
    
    //std::cout << "t: " << t << " absAlpha: " << absAlpha << std::endl;
    
    //double final = mZstarDistribution*acceptance;
    double final = mZstarDistribution*acceptance*mZZDistribution;
    if (final <= 0) final = 1e-12;
    
    return final;
}

Member Data Documentation

RooRealProxy Roo4lMasses2D::CBalpha

protected

Definition at line 341 of file HZZ4LRooPdfs.h.

Referenced by evaluate().

RooRealProxy Roo4lMasses2D::CBmean

protected

Definition at line 339 of file HZZ4LRooPdfs.h.

Referenced by evaluate().

RooRealProxy Roo4lMasses2D::CBn

protected

Definition at line 342 of file HZZ4LRooPdfs.h.

Referenced by evaluate().

RooRealProxy Roo4lMasses2D::CBwidth

protected

Definition at line 340 of file HZZ4LRooPdfs.h.

Referenced by evaluate().

RooRealProxy Roo4lMasses2D::Gamma

protected

Definition at line 335 of file HZZ4LRooPdfs.h.

Referenced by evaluate().

RooRealProxy Roo4lMasses2D::mZ

protected

Definition at line 333 of file HZZ4LRooPdfs.h.

Referenced by evaluate().

RooRealProxy Roo4lMasses2D::mZstar

protected

Definition at line 332 of file HZZ4LRooPdfs.h.

Referenced by evaluate().

RooRealProxy Roo4lMasses2D::mZZ

protected

Definition at line 334 of file HZZ4LRooPdfs.h.

Referenced by evaluate().

RooRealProxy Roo4lMasses2D::p0

protected

Definition at line 336 of file HZZ4LRooPdfs.h.

Referenced by evaluate().

RooRealProxy Roo4lMasses2D::p1

protected

Definition at line 337 of file HZZ4LRooPdfs.h.

Referenced by evaluate().

RooRealProxy Roo4lMasses2D::p2

protected

Definition at line 338 of file HZZ4LRooPdfs.h.

Referenced by evaluate().