JCALIBRATE::JK40Parameters Struct Reference

Fit parameters for two-fold coincidence rate due to K40. More...

#include <JFitK40.hh>

Inheritance diagram for JCALIBRATE::JK40Parameters:

Public Member Functions
	JK40Parameters ()
	Default constructor. More...
const JK40Parameters &	getK40Parameters () const
	Get K40 parameters. More...
void	setK40Parameters (const JK40Parameters_t &parameters)
	Set K40 parameters. More...
size_t	getN () const
	Get number of fit parameters. More...
int	getIndex (JParameter_t JK40Parameters::*p) const
	Get index of parameter. More...
double	getValue (const double ct) const
	Get K40 coincidence rate as a function of cosine angle between PMT axes. More...
const JK40Parameters_t &	getGradient (const double ct) const
	Get gradient. More...
void	reset ()
	Reset. More...

Static Public Member Functions
static const JK40Parameters &	getInstance ()
	Get default values. More...

Public Attributes
JParameter_t	R
	maximal coincidence rate [Hz] More...
JParameter_t	p1
	1st order angle dependence coincidence rate More...
JParameter_t	p2
	2nd order angle dependence coincidence rate More...
JParameter_t	p3
	3rd order angle dependence coincidence rate More...
JParameter_t	p4
	4th order angle dependence coincidence rate More...
JParameter_t	bg
	constant background [Hz] More...
JParameter_t	cc
	fraction of signal correlated background More...

Private Attributes
JK40Parameters_t	gradient

Detailed Description

Fit parameters for two-fold coincidence rate due to K40.

Definition at line 597 of file JFitK40.hh.

Constructor & Destructor Documentation

JCALIBRATE::JK40Parameters::JK40Parameters ( )

inline

Default constructor.

Definition at line 603 of file JFitK40.hh.

    {}

Member Function Documentation

static const JK40Parameters& JCALIBRATE::JK40Parameters::getInstance ( )

inlinestatic

Get default values.

The default parameter values are set to those obtained from a designated simulation of K40 decays (see http://wiki.km3net.de/index.php/OMGsim_simulations_for_K40_fit).
If you change these values, you may also want to change the corresponding values in JK40DefaultSimulator.hh.

Returns

parameters

Definition at line 616 of file JFitK40.hh.

    {
      static JK40Parameters parameters;

      parameters.R  = 18.460546;
      parameters.p1 =  3.0767;
      parameters.p2 = -1.2078;
      parameters.p3 =  0.9905;
      parameters.p4 =  0.9379;
      parameters.bg =  0.0;
      parameters.cc =  0.0;

      return parameters;
    }

const JK40Parameters& JCALIBRATE::JK40Parameters::getK40Parameters ( ) const

inline

Get K40 parameters.

Returns

K40 parameters

Definition at line 637 of file JFitK40.hh.

    {
      return static_cast<const JK40Parameters&>(*this);
    }

void JCALIBRATE::JK40Parameters::setK40Parameters ( const JK40Parameters_t &  parameters )

inline

Set K40 parameters.

Parameters

parameters

K40 parameters

Definition at line 648 of file JFitK40.hh.

    {
      static_cast<JK40Parameters_t&>(*this) = parameters;
    }

size_t JCALIBRATE::JK40Parameters::getN ( ) const

inline

Get number of fit parameters.

Returns

number of parameters

Definition at line 659 of file JFitK40.hh.

    {
      return ((R .isFree() ? 1 : 0) +
              (p1.isFree() ? 1 : 0) +
              (p2.isFree() ? 1 : 0) +
              (p3.isFree() ? 1 : 0) +
              (p4.isFree() ? 1 : 0) +
              (bg.isFree() ? 1 : 0) +
              (cc.isFree() ? 1 : 0));
    }

int JCALIBRATE::JK40Parameters::getIndex ( JParameter_t JK40Parameters::*  p ) const

inline

Get index of parameter.

Parameters

p	pointer to data member

Returns

index

Definition at line 677 of file JFitK40.hh.

    {
      if (!(this->*p).isFree()) {
        return INVALID_INDEX;
      }

      int N = 0;

      if (p == &JK40Parameters::R)  { return N; } if (R .isFree()) { ++N; }
      if (p == &JK40Parameters::p1) { return N; } if (p1.isFree()) { ++N; }
      if (p == &JK40Parameters::p2) { return N; } if (p2.isFree()) { ++N; }
      if (p == &JK40Parameters::p3) { return N; } if (p3.isFree()) { ++N; }
      if (p == &JK40Parameters::p4) { return N; } if (p4.isFree()) { ++N; }
      if (p == &JK40Parameters::bg) { return N; } if (bg.isFree()) { ++N; }
      if (p == &JK40Parameters::cc) { return N; } if (cc.isFree()) { ++N; }

      return INVALID_INDEX;
    }

double JCALIBRATE::JK40Parameters::getValue ( const double  ct ) const

inline

Get K40 coincidence rate as a function of cosine angle between PMT axes.

Parameters

ct	cosine angle between PMT axes

Returns

rate [Hz]

Definition at line 703 of file JFitK40.hh.

    {
      return R * exp(ct*(p1+ct*(p2+ct*(p3+ct*p4))) - (p1+p2+p3+p4));
    }

const JK40Parameters_t& JCALIBRATE::JK40Parameters::getGradient ( const double  ct ) const

inline

Get gradient.

Parameters

ct	cosine angle between PMT axes

Returns

gradient

Definition at line 715 of file JFitK40.hh.

    {
      gradient.reset();

      const double rate  = getValue(ct);
      const double ct2   = ct * ct;

      if (R .isFree()) { gradient.R  = rate / R; }
      if (p1.isFree()) { gradient.p1 = rate * ct         -  rate; }
      if (p2.isFree()) { gradient.p2 = rate * ct2        -  rate; }
      if (p3.isFree()) { gradient.p3 = rate * ct2 * ct   -  rate; }
      if (p4.isFree()) { gradient.p4 = rate * ct2 * ct2  -  rate; }
      if (bg.isFree()) { gradient.bg = 1.0; }
      if (cc.isFree()) { gradient.cc = rate; }

      return gradient;
    }

void JCALIBRATE::JK40Parameters_t::reset ( )

inlineinherited

Reset.

Definition at line 572 of file JFitK40.hh.

    {
      R  = 0.0;
      p1 = 0.0;
      p2 = 0.0;
      p3 = 0.0;
      p4 = 0.0;
      bg = 0.0;
      cc = 0.0;
    }

Member Data Documentation

JK40Parameters_t JCALIBRATE::JK40Parameters::gradient

mutableprivate

Definition at line 734 of file JFitK40.hh.

JParameter_t JCALIBRATE::JK40Parameters_t::R

inherited

maximal coincidence rate [Hz]

Definition at line 584 of file JFitK40.hh.

JParameter_t JCALIBRATE::JK40Parameters_t::p1

inherited

1st order angle dependence coincidence rate

Definition at line 585 of file JFitK40.hh.

JParameter_t JCALIBRATE::JK40Parameters_t::p2

inherited

2nd order angle dependence coincidence rate

Definition at line 586 of file JFitK40.hh.

JParameter_t JCALIBRATE::JK40Parameters_t::p3

inherited

3rd order angle dependence coincidence rate

Definition at line 587 of file JFitK40.hh.

JParameter_t JCALIBRATE::JK40Parameters_t::p4

inherited

4th order angle dependence coincidence rate

Definition at line 588 of file JFitK40.hh.

JParameter_t JCALIBRATE::JK40Parameters_t::bg

inherited

constant background [Hz]

Definition at line 589 of file JFitK40.hh.

JParameter_t JCALIBRATE::JK40Parameters_t::cc

inherited

fraction of signal correlated background

Definition at line 590 of file JFitK40.hh.

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The documentation for this struct was generated from the following file:

• JFitK40.hh