JFIT::JNPEHit Struct Reference

Auxiliary class for simultaneously handling light yields and response of PMT. More...

#include <JNPEHit.hh>

Inheritance diagram for JFIT::JNPEHit:

Public Member Functions
	JNPEHit ()
	Default constructor.
	JNPEHit (const JNPE &npe, const size_t ns, const double QE, const double ps)
	Constructor.
size_t	getN () const
	Get number of hits.
double	getQE () const
	Get relative quantum efficiency.
double	getPS () const
	Get survival probability of one photo-electron.
double	getP (const double E_GeV) const
	Get muon energy dependent probability.
double	getChi2 (const double E_GeV) const
	Get chi2.
double	getY1 () const
	Get light yield due to minimum ionizing particle.
double	getYA () const
	Get light yield due to delta-rays.
double	getYB () const
	Get light yield due to bremsstrahlung.
double	getZ () const
	Get position along muon path.
double	getH1 (const double E_GeV) const
	Expected number of photo-electrons for muon hypothesis as a function of muon energy.
double	getY0 () const
	Get light yield due to random background.
double	getH0 () const
	Expected number of photo-electrons for random background hypothesis.
double	getP (const bool hit) const
	Get probability for observing a hit or not.
double	getChi2 (const bool hit) const
	Get chi2 for observing a hit or not.

Protected Attributes
size_t	ns
	number of hits
double	QE
	relative quantum efficiency
double	ps
	survival probability of one photo-electron
double	y1
	light yield due to minimum ionizing particle [npe]
double	yA
	light yield due to delta-rays [npe*m/GeV]
double	yB
	light yield due to bremsstrahlung [npe/GeV]
double	z
	position along muon path [m]
double	y0
	light yield due to random background [npe]

Detailed Description

Auxiliary class for simultaneously handling light yields and response of PMT.

Definition at line 19 of file JNPEHit.hh.

Constructor & Destructor Documentation

JNPEHit() [1/2]

JFIT::JNPEHit::JNPEHit ( )

inline

Default constructor.

Definition at line 25 of file JNPEHit.hh.

              :
      JNPE(),
      ns(0),
      QE(1.0),
      ps(1.0)
    {}

JNPEHit() [2/2]

JFIT::JNPEHit::JNPEHit ( const JNPE & npe, const size_t ns, const double QE, const double ps )

inline

Constructor.

Parameters

npe	npe
ns	number of hits
QE	relative quantum efficiency
ps	survival probability of one photo-electron

Definition at line 41 of file JNPEHit.hh.

                             :
      JNPE(npe),
      ns(ns),
      QE(QE),
      ps(ps)
    {}

Member Function Documentation

getN()

size_t JFIT::JNPEHit::getN ( ) const

inline

Get number of hits.

Returns

number of hits

Definition at line 57 of file JNPEHit.hh.

    {
      return ns;
    }

getQE()

double JFIT::JNPEHit::getQE ( ) const

inline

Get relative quantum efficiency.

Returns

relative quantum efficiency

Definition at line 68 of file JNPEHit.hh.

    {
      return QE;
    }

getPS()

double JFIT::JNPEHit::getPS ( ) const

inline

Get survival probability of one photo-electron.

Returns

survival probability of one photo-electron

Definition at line 79 of file JNPEHit.hh.

    {
      return ps;
    }

getP() [1/2]

double JFIT::JNPEHit::getP ( const double E_GeV ) const

inline

Get muon energy dependent probability.

Parameters

E_GeV

energy [GeV]

Returns

probability

Definition at line 91 of file JNPEHit.hh.

    {
      const double x  = (this->getH1(E_GeV) * this->getQE()  +
                         this->getH0());                     // expectation value for total number of photo-electrons
 
      const double p0 = exp(-x) * (1.0 +                     // Poisson probability of 0 photo-electrons  OR
                                   x * (1.0 - ps));          // Poisson probability of 1 photo-electron   AND  NOT survive
 
      if (this->getN() > 0)
        return 1.0 - p0;
      else
        return p0;
    }

getChi2() [1/2]

double JFIT::JNPEHit::getChi2 ( const double E_GeV ) const

inline

Get chi2.

Parameters

E_GeV

energy [GeV]

Returns

chi2

Definition at line 112 of file JNPEHit.hh.

    {
      return -log(this->getP(E_GeV));
    }

getY1()

double JFIT::JNPE::getY1 ( ) const

inlineinherited

Get light yield due to minimum ionizing particle.

Returns

light yield [npe]

Definition at line 71 of file JNPE.hh.

    {
      return y1;
    }

getYA()

double JFIT::JNPE::getYA ( ) const

inlineinherited

Get light yield due to delta-rays.

Returns

light yield [npe*m/GeV]

Definition at line 82 of file JNPE.hh.

    {
      return yA;
    }

getYB()

double JFIT::JNPE::getYB ( ) const

inlineinherited

Get light yield due to bremsstrahlung.

Returns

light yield [npe/GeV]

Definition at line 93 of file JNPE.hh.

    {
      return yB;
    }

getZ()

double JFIT::JNPE::getZ ( ) const

inlineinherited

Get position along muon path.

Returns

position along muon path [m]

Definition at line 104 of file JNPE.hh.

    {
      return z;
    }

getH1()

double JFIT::JNPE::getH1 ( const double E_GeV ) const

inlineinherited

Expected number of photo-electrons for muon hypothesis as a function of muon energy.

Parameters

E_GeV

energy [GeV]

Returns

light yield [npe]

Definition at line 116 of file JNPE.hh.

    {
      using namespace JPP;
 
      const double E = gWater.getE(E_GeV, this->getZ());
 
      if (E >= MASS_MUON * INDEX_OF_REFRACTION_WATER)
        return (this->getY1()                                         + 
                this->getYA() * JDeltaRays::getEnergyLossFromMuon(E)  +
                this->getYB() * E);
      else
        return 0.0;
    }

getY0()

double JFIT::JK40::getY0 ( ) const

inlineinherited

Get light yield due to random background.

Returns

light yield [npe]

Definition at line 49 of file JK40.hh.

    {
      return y0;
    }

getH0()

double JFIT::JK40::getH0 ( ) const

inlineinherited

Expected number of photo-electrons for random background hypothesis.

Returns

light yield [npe]

Definition at line 60 of file JK40.hh.

    {
      return this->getY0();
    }

getP() [2/2]

double JFIT::JK40::getP ( const bool hit ) const

inlineinherited

Get probability for observing a hit or not.

Parameters

hit

hit

Returns

probability

Definition at line 72 of file JK40.hh.

    {
      return JFIT::getP(this->getH0(), hit);
    }

getChi2() [2/2]

double JFIT::JK40::getChi2 ( const bool hit ) const

inlineinherited

Get chi2 for observing a hit or not.

Parameters

hit

hit

Returns

probability

Definition at line 84 of file JK40.hh.

    {
      return JFIT::getChi2(this->getH0(), hit);
    }

Member Data Documentation

ns

size_t JFIT::JNPEHit::ns

protected

number of hits

Definition at line 118 of file JNPEHit.hh.

QE

double JFIT::JNPEHit::QE

protected

relative quantum efficiency

Definition at line 119 of file JNPEHit.hh.

ps

double JFIT::JNPEHit::ps

protected

survival probability of one photo-electron

Definition at line 120 of file JNPEHit.hh.

y1

double JFIT::JNPE::y1

protectedinherited

light yield due to minimum ionizing particle [npe]

Definition at line 131 of file JNPE.hh.

yA

double JFIT::JNPE::yA

protectedinherited

light yield due to delta-rays [npe*m/GeV]

Definition at line 132 of file JNPE.hh.

yB

double JFIT::JNPE::yB

protectedinherited

light yield due to bremsstrahlung [npe/GeV]

Definition at line 133 of file JNPE.hh.

z

double JFIT::JNPE::z

protectedinherited

position along muon path [m]

Definition at line 134 of file JNPE.hh.

y0

double JFIT::JK40::y0

protectedinherited

light yield due to random background [npe]

Definition at line 90 of file JK40.hh.

---

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

• JNPEHit.hh