RooGaussModelAcceptance::K_n Class Reference

#include <RooAbsGaussModelEfficiency.h>

Public Member Functions
	K_n (const std::complex< double > &z)
std::complex< double >	operator() (unsigned i) const

Private Attributes
std::complex< double >	_zi

Detailed Description

Definition at line 39 of file RooAbsGaussModelEfficiency.h.

Constructor & Destructor Documentation

K_n()

RooGaussModelAcceptance::K_n::K_n ( const std::complex< double > &  z )

inline

Definition at line 42 of file RooAbsGaussModelEfficiency.h.

: _zi( std::complex<double>(1,0)/z) {}

Member Function Documentation

operator()()

std::complex< double > RooGaussModelAcceptance::K_n::operator()

(

unsigned

i

)

const

Definition at line 135 of file RooAbsGaussModelEfficiency.cpp.

                                                       {
    assert(i<14);
    const std::complex<double> zi2 = _zi*_zi ;
    std::complex<double> f(1,0);
    switch(i) {
    // mathematica:
    // K[z_, y_] = Exp[y*y]/(2*(z - y))
    // F[z_, y_] = Derivative[0, y][K][z, 0]
    // case n: F[z,n]
    case 13: f *= 13.*_zi;
    case 12: return f*  332640.*_zi*(1.+6.*zi2*(1.+5.*zi2*(1.+4.*zi2*(1.+3.*zi2*(1.+2.*zi2*(1.+zi2))))));
    case 11: f *= 11.*_zi;
    case 10: return f*              15120.*_zi*(1.+5.*zi2*(1.+4.*zi2*(1.+3.*zi2*(1.+2.*zi2*(1.+zi2)))));
    case  9: f *= 9.*_zi;
    case  8: return f*                           840.*_zi*(1.+4.*zi2*(1.+3.*zi2*(1.+2.*zi2*(1.+zi2))));
    case  7: f *= 7.*_zi;
    case  6: return f*                                       60.*_zi*(1.+3.*zi2*(1.+2.*zi2*(1.+zi2)));
    case  5: f *= 5.*_zi;
    case  4: return f*                                                   6.*_zi*(1.+2.*zi2*(1.+zi2));
    case  3: f *= 3.*_zi;
    case  2: return f*                                                                 _zi*(1.+zi2);
    case  1: f *= _zi;
    case  0: return f*                                                                     0.5*_zi;
    default: goto error;
    }
error:
    std::cerr << "K_n only implemented upto (and including) 13th order" << std::endl;
    assert(false);
    return 0;
}

Member Data Documentation

_zi

std::complex<double> RooGaussModelAcceptance::K_n::_zi

private

Definition at line 40 of file RooAbsGaussModelEfficiency.h.

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The documentation for this class was generated from the following files:

• Mint/RooAbsGaussModelEfficiency.h
• src/Mojito/TimeDependent/RooAbsGaussModelEfficiency.cpp