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JCALIBRATE::JK40Parameters Struct Reference

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

#include <JFitK40.hh>

Inheritance diagram for JCALIBRATE::JK40Parameters:
JCALIBRATE::JK40Parameters_t JCALIBRATE::JModel_t JCALIBRATE::JModel

Public Member Functions

 JK40Parameters ()
 Default constructor.
 
size_t getN () const
 Get number of fit parameters.
 
int getIndex (JParameter_t JK40Parameters::*p) const
 Get index of parameter.
 
double getValue (const double ct) const
 Get K40 coincidence rate as a function of cosine angle between PMT axes.
 
const JK40Parameters_tgetGradient (const double ct) const
 Get gradient.
 
const JK40Parameters_tgetK40Parameters () const
 Get K40 parameters.
 
void setK40Parameters (const JK40Parameters_t &parameters)
 Set K40 parameters.
 
void reset ()
 Reset.
 

Static Public Member Functions

static const JK40ParametersgetInstance ()
 Get default values.
 

Public Attributes

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

Private Attributes

JK40Parameters_t gradient
 

Detailed Description

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

Definition at line 676 of file JFitK40.hh.

Constructor & Destructor Documentation

◆ JK40Parameters()

JCALIBRATE::JK40Parameters::JK40Parameters ( )
inline

Default constructor.

Definition at line 682 of file JFitK40.hh.

683 {}

Member Function Documentation

◆ getInstance()

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 695 of file JFitK40.hh.

696 {
697 static JK40Parameters parameters;
698
699 parameters.R .set(18.460546);
700 parameters.p1.set( 3.0767);
701 parameters.p2.set(-1.2078);
702 parameters.p3.set( 0.9905);
703 parameters.p4.set( 0.9379);
704 parameters.cc.set( 0.0);
705
706 return parameters;
707 }
JK40Parameters()
Default constructor.
Definition JFitK40.hh:682

◆ getN()

size_t JCALIBRATE::JK40Parameters::getN ( ) const
inline

Get number of fit parameters.

Returns
number of parameters

Definition at line 715 of file JFitK40.hh.

716 {
717 return ((R .isFree() ? 1 : 0) +
718 (p1.isFree() ? 1 : 0) +
719 (p2.isFree() ? 1 : 0) +
720 (p3.isFree() ? 1 : 0) +
721 (p4.isFree() ? 1 : 0) +
722 (cc.isFree() ? 1 : 0));
723 }
bool isFree() const
Check if parameter is free.
Definition JFitK40.hh:240
JParameter_t R
maximal coincidence rate [Hz]
Definition JFitK40.hh:664
JParameter_t p1
1st order angle dependence coincidence rate
Definition JFitK40.hh:665
JParameter_t p2
2nd order angle dependence coincidence rate
Definition JFitK40.hh:666
JParameter_t p3
3rd order angle dependence coincidence rate
Definition JFitK40.hh:667
JParameter_t p4
4th order angle dependence coincidence rate
Definition JFitK40.hh:668
JParameter_t cc
fraction of signal correlated background
Definition JFitK40.hh:669

◆ getIndex()

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

Get index of parameter.

Parameters
ppointer to data member
Returns
index

Definition at line 732 of file JFitK40.hh.

733 {
734 if (!(this->*p).isFree()) {
735 return INVALID_INDEX;
736 }
737
738 int N = 0;
739
740 if (p == &JK40Parameters::R) { return N; } if (R .isFree()) { ++N; }
741 if (p == &JK40Parameters::p1) { return N; } if (p1.isFree()) { ++N; }
742 if (p == &JK40Parameters::p2) { return N; } if (p2.isFree()) { ++N; }
743 if (p == &JK40Parameters::p3) { return N; } if (p3.isFree()) { ++N; }
744 if (p == &JK40Parameters::p4) { return N; } if (p4.isFree()) { ++N; }
745 if (p == &JK40Parameters::cc) { return N; } if (cc.isFree()) { ++N; }
746
747 return INVALID_INDEX;
748 }
static const int INVALID_INDEX
invalid index
Definition JFitK40.hh:60

◆ getValue()

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

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

Parameters
ctcosine angle between PMT axes
Returns
rate [Hz]

Definition at line 757 of file JFitK40.hh.

758 {
759 return R * exp(ct*(p1+ct*(p2+ct*(p3+ct*p4))) - (p1+p2+p3+p4));
760 }

◆ getGradient()

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

Get gradient.

Parameters
ctcosine angle between PMT axes
Returns
gradient

Definition at line 769 of file JFitK40.hh.

770 {
771 gradient.reset();
772
773 const double rate = getValue(ct);
774 const double ct2 = ct * ct;
775
776 if (R .isFree()) { gradient.R = rate / R; }
777 if (p1.isFree()) { gradient.p1 = rate * ct - rate; }
778 if (p2.isFree()) { gradient.p2 = rate * ct2 - rate; }
779 if (p3.isFree()) { gradient.p3 = rate * ct2 * ct - rate; }
780 if (p4.isFree()) { gradient.p4 = rate * ct2 * ct2 - rate; }
781 if (cc.isFree()) { gradient.cc = rate; }
782
783 return gradient;
784 }
JK40Parameters_t gradient
Definition JFitK40.hh:787
double getValue(const double ct) const
Get K40 coincidence rate as a function of cosine angle between PMT axes.
Definition JFitK40.hh:757

◆ getK40Parameters()

const JK40Parameters_t & JCALIBRATE::JK40Parameters_t::getK40Parameters ( ) const
inlineinherited

Get K40 parameters.

Returns
K40 parameters

Definition at line 633 of file JFitK40.hh.

634 {
635 return static_cast<const JK40Parameters_t&>(*this);
636 }
JK40Parameters_t()
Default constructor.
Definition JFitK40.hh:622

◆ setK40Parameters()

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

Set K40 parameters.

Parameters
parametersK40 parameters

Definition at line 644 of file JFitK40.hh.

645 {
646 static_cast<JK40Parameters_t&>(*this) = parameters;
647 }

◆ reset()

void JCALIBRATE::JK40Parameters_t::reset ( )
inlineinherited

Reset.

Definition at line 653 of file JFitK40.hh.

654 {
655 R .set(0.0);
656 p1.set(0.0);
657 p2.set(0.0);
658 p3.set(0.0);
659 p4.set(0.0);
660 cc.set(0.0);
661 }
void set()
Set current value.
Definition JFitK40.hh:271

Member Data Documentation

◆ gradient

JK40Parameters_t JCALIBRATE::JK40Parameters::gradient
mutableprivate

Definition at line 787 of file JFitK40.hh.

◆ R

JParameter_t JCALIBRATE::JK40Parameters_t::R
inherited

maximal coincidence rate [Hz]

Definition at line 664 of file JFitK40.hh.

◆ p1

JParameter_t JCALIBRATE::JK40Parameters_t::p1
inherited

1st order angle dependence coincidence rate

Definition at line 665 of file JFitK40.hh.

◆ p2

JParameter_t JCALIBRATE::JK40Parameters_t::p2
inherited

2nd order angle dependence coincidence rate

Definition at line 666 of file JFitK40.hh.

◆ p3

JParameter_t JCALIBRATE::JK40Parameters_t::p3
inherited

3rd order angle dependence coincidence rate

Definition at line 667 of file JFitK40.hh.

◆ p4

JParameter_t JCALIBRATE::JK40Parameters_t::p4
inherited

4th order angle dependence coincidence rate

Definition at line 668 of file JFitK40.hh.

◆ cc

JParameter_t JCALIBRATE::JK40Parameters_t::cc
inherited

fraction of signal correlated background

Definition at line 669 of file JFitK40.hh.


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