rb::TDFun Class Reference

#include <TDFun_o.h>

List of all members.

Public Member Functions
	TDFun ()
	TDFun (const double &E)
	~TDFun ()
double	GetD0 () const
double	GetiD0 () const
double	GetBeta2 () const
double	GetiBeta2 () const
double	Eval (const double &z)
double	Eval (const double &z, const double &b2, const double &D0)
double	EvalSoft (const double &x)
double	EvalSoft (const double &x, const double &b2, const double &D0)
Protected Attributes
double	fD0
double	fiD0
double	fb2
double	fib2

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Detailed Description

Definition at line 7 of file TDFun_o.h.

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Constructor & Destructor Documentation

rb::TDFun::TDFun

(

)

rb::TDFun::TDFun

(

const double &

E

)

[inline]

Definition at line 16 of file TDFun_o.h.

References rb::alpha, fb2, fD0, fib2, fiD0, M_PI, and rb::me.

                        {
    double L    = 2.*log(2.*E/me);
    double fBeta = 2.*alpha/M_PI*(L-1.);
    fb2  = fBeta/2;
    fib2 = 1/fb2;
    //  fD0   = 1.+3./8.*fBeta-fBeta*fBeta/48.*(gConst->Pi2() + fL/3. - 47./8.);
    fD0  = 1.+3./8.*fBeta+fBeta*fBeta/16.*(9./8. - M_PI*M_PI/3);
    fiD0 = 1/fD0;
  }

rb::TDFun::~TDFun

(

)

[inline]

Definition at line 26 of file TDFun_o.h.

{};

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Member Function Documentation

double rb::TDFun::Eval	(	const double &	z,
		const double &	b2,
		const double &	D0
	)			[inline]

Definition at line 42 of file TDFun_o.h.

References x.

                                                                         {
    double x = 1 - z;
    //    double D = b2*pow(x,b2-1)*D0 - 0.5*b2*(1+z) - 
    //      b2*b2/8*(4*(1+z)*log(x)+(1+3*z*z)/x*log(z)+5+z);
    double D = b2*pow(x,b2-1)*D0 - 0.5*b2*(1+z) - 
      b2*b2/8*(4*(1+z)*log(x)+(1+3*z*z)/x*log1p(-x)+5+z);
    return D;
  }

double rb::TDFun::Eval

(

const double &

z

)

[inline]

Definition at line 33 of file TDFun_o.h.

References fb2, fD0, and x.

Referenced by TCrossPart::GetValue().

                                     {  
    double x = 1 - z;
    //    double D = fb2*pow(x,fb2-1)*fD0 - 0.5*fb2*(1+z) - 
    //      fb2*fb2/8*(4*(1+z)*log(x)+(1+3*z*z)/x*log(z)+5+z);
    double D = fb2*pow(x,fb2-1)*fD0 - 0.5*fb2*(1+z) - 
      fb2*fb2/8*(4*(1+z)*log(x)+(1+3*z*z)/x*log1p(-x)+5+z);
    return D;
  }

double rb::TDFun::EvalSoft	(	const double &	x,
		const double &	b2,
		const double &	D0
	)			[inline]

Definition at line 63 of file TDFun_o.h.

References exp().

                                                                             {
    double z  = 1 - x;
    double lx = log(x);
    double t1 = exp(-b2*lx);
    double t2 = t1*x;
    //    double D  = D0 - t2*(0.5*(1+z) + b2/8*( 4*(1+z)*lx + 4 + (1+z))) - 
    //      b2/8*t1*(1+3*z*z)*log(z);
    double D  = D0 - t2*(0.5*(1+z) + b2/8*( 4*(1+z)*lx + 4 + (1+z))) - 
      b2/8*t1*(1+3*z*z)*log1p(-x);
    return D;
  }

double rb::TDFun::EvalSoft

(

const double &

x

)

[inline]

Definition at line 51 of file TDFun_o.h.

References exp(), fb2, and fD0.

Referenced by TCrossPart::GetValue().

                                         {
    double z  = 1 - x;
    double lx = log(x);
    double t1 = exp(-fb2*lx);
    double t2 = t1*x;
    //    double D  = fD0 - t2*(0.5*(1+z) + fb2/8*( 4*(1+z)*lx + 4 + (1+z))) - 
    //      fb2/8*t1*(1+3*z*z)*log(z);
    double D  = fD0 - t2*(0.5*(1+z) + fb2/8*( 4*(1+z)*lx + 4 + (1+z))) - 
      fb2/8*t1*(1+3*z*z)*log1p(-x);
    return D;
  }

double rb::TDFun::GetBeta2

(

)

const [inline]

Definition at line 30 of file TDFun_o.h.

References fb2.

Referenced by TCrossPart::TCrossPart().

{ return fb2;};

double rb::TDFun::GetD0

(

)

const [inline]

Definition at line 28 of file TDFun_o.h.

References fD0.

{ return fD0;};

double rb::TDFun::GetiBeta2

(

)

const [inline]

Definition at line 31 of file TDFun_o.h.

References fib2.

{ return fib2;};

double rb::TDFun::GetiD0

(

)

const [inline]

Definition at line 29 of file TDFun_o.h.

References fiD0.

{ return fiD0;};

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Member Data Documentation

double rb::TDFun::fb2 [protected]

Definition at line 11 of file TDFun_o.h.

Referenced by Eval(), EvalSoft(), GetBeta2(), and TDFun().

double rb::TDFun::fD0 [protected]

Definition at line 9 of file TDFun_o.h.

Referenced by Eval(), EvalSoft(), GetD0(), and TDFun().

double rb::TDFun::fib2 [protected]

Definition at line 12 of file TDFun_o.h.

Referenced by GetiBeta2(), and TDFun().

double rb::TDFun::fiD0 [protected]

Definition at line 10 of file TDFun_o.h.

Referenced by GetiD0(), and TDFun().

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