DalitzPhaseSpaceBox Class Reference

#include <DalitzPhaseSpaceBox.h>

Public Member Functions
double &	height ()
const double &	height () const
void	setWeight (double w)
double	weight () const
double &	weight ()
	DalitzPhaseSpaceBox (TRandom *rnd=gRandom)
	DalitzPhaseSpaceBox (const DalitzEventPattern &pat, TRandom *rnd=gRandom)
	DalitzPhaseSpaceBox (const DalitzPhaseSpaceBox &other)
	~DalitzPhaseSpaceBox ()
const DalitzEventPattern &	pattern () const
void	setPattern (const DalitzEventPattern &pat)
void	setName (const std::string &name)
const std::string &	name () const
double	volume () const
double	genValue () const
double	genValue (const DalitzEvent &evt) const
bool	insideArea (const DalitzEvent &evt) const
MINT::counted_ptr< DalitzEvent >	tryEventForOwner ()
MINT::counted_ptr< DalitzEvent >	makeEventForOwner ()
bool	setRnd (TRandom *rnd=gRandom)
double	phaseSpaceIntegral () const
double	phaseSpaceIntegral ()
bool	checkIntegration () const
void	print (std::ostream &os=std::cout) const

Private Member Functions
double	doPhaseSpaceIntegral ()
MINT::counted_ptr< DalitzEvent >	tryNewEvent ()

Private Attributes
std::string	_name
DalitzEventPattern	_pat
TRandom *	_rnd
double	_height
double	_weight
double	_phaseSpaceIntegral

Detailed Description

Definition at line 19 of file DalitzPhaseSpaceBox.h.

Constructor & Destructor Documentation

DalitzPhaseSpaceBox() [1/3]

DalitzPhaseSpaceBox::DalitzPhaseSpaceBox

(

TRandom *

rnd = gRandom

)

Definition at line 10 of file DalitzPhaseSpaceBox.cpp.

  : _name("noName")
  , _pat()
  , _rnd(rnd)
  , _height(1)
  , _weight(1)
  , _phaseSpaceIntegral(-1)
{}

DalitzPhaseSpaceBox() [2/3]

DalitzPhaseSpaceBox::DalitzPhaseSpaceBox	(	const DalitzEventPattern &	pat,
		TRandom *	rnd = gRandom
	)

Definition at line 20 of file DalitzPhaseSpaceBox.cpp.

  : _name("noName")
  , _pat(pat)
  , _rnd(rnd)
  , _height(1)
  , _weight(1)
  , _phaseSpaceIntegral(-1)
{
  doPhaseSpaceIntegral();
}

DalitzPhaseSpaceBox() [3/3]

DalitzPhaseSpaceBox::DalitzPhaseSpaceBox

(

const DalitzPhaseSpaceBox &

other

)

Definition at line 32 of file DalitzPhaseSpaceBox.cpp.

  : _name(other._name)
  , _pat(other._pat)
  , _rnd(other._rnd)
  , _height(other._height)
  , _weight(other._weight)
  , _phaseSpaceIntegral(other._phaseSpaceIntegral)
{
}

~DalitzPhaseSpaceBox()

DalitzPhaseSpaceBox::~DalitzPhaseSpaceBox

(

)

Definition at line 42 of file DalitzPhaseSpaceBox.cpp.

                                         {
}

Member Function Documentation

checkIntegration()

bool DalitzPhaseSpaceBox::checkIntegration

(

)

const

Definition at line 132 of file DalitzPhaseSpaceBox.cpp.

                                                {
  cout << "DalitzPhaseSpaceBox: can't check integration, yet - improve me!" << endl;
  return true;
}

doPhaseSpaceIntegral()

double DalitzPhaseSpaceBox::doPhaseSpaceIntegral ( )

private

Definition at line 49 of file DalitzPhaseSpaceBox.cpp.

                                                {
  _phaseSpaceIntegral = weight()*phaseSpaceIntegral_upTo4body(_pat);
  return _phaseSpaceIntegral;
}

genValue() [1/2]

double DalitzPhaseSpaceBox::genValue

(

)

const

Definition at line 75 of file DalitzPhaseSpaceBox.cpp.

                                          {
  bool dbThis=false;
  if(dbThis) {
    cout << "DalitzPhaseSpaceBox::genValue called " << endl;
  }

  double returnVal = height() * weight();
  if(dbThis) {
    cout << "DalitzPhaseSpaceBox::genValue returning "
     <<  weight() << " * " << height() 
     << " = "
     << returnVal << endl;
  }
  return returnVal;
}

genValue() [2/2]

double DalitzPhaseSpaceBox::genValue

(

const DalitzEvent &

evt

)

const

Definition at line 71 of file DalitzPhaseSpaceBox.cpp.

                                                             {
  // returns generator value w/o phase space - constant, here.
  return genValue();
}

height() [1/2]

double& DalitzPhaseSpaceBox::height ( )

inline

Definition at line 30 of file DalitzPhaseSpaceBox.h.

{ return _height;}

height() [2/2]

const double& DalitzPhaseSpaceBox::height ( ) const

inline

Definition at line 31 of file DalitzPhaseSpaceBox.h.

{ return _height;}

insideArea()

bool DalitzPhaseSpaceBox::insideArea

(

const DalitzEvent &

evt

)

const

Definition at line 61 of file DalitzPhaseSpaceBox.cpp.

                                                                {

  return (evt.phaseSpace() > 0);
}

makeEventForOwner()

counted_ptr< DalitzEvent > DalitzPhaseSpaceBox::makeEventForOwner

(

)

Definition at line 97 of file DalitzPhaseSpaceBox.cpp.

                                                               {
  //  bool dbThis=false;
  if(_pat.numDaughters() < 2){
    counted_ptr<DalitzEvent> zero(0);
    return zero;
  }
  counted_ptr<DalitzEvent> evtPtr(new DalitzEvent(_pat, _rnd));
  evtPtr->setWeight(weight());
  // above constructor makes a phase space event, weight 1.
  if(0 != evtPtr && _pat[0] < 0) evtPtr->P_conjugateYourself();
  // the above ensures that, for the same random seed,
  // identical but CP conjugate events are generated
  // for D->f and Dbar->fbar.
  // Note that this step of the event generation is
  // completely P-even, and the event generation would
  // still be correct without this P-conjugation. The 
  // crucial P-senstive step is the reweighting applied 
  // later, which will then take into account the full
  // amplitude model. The P-conjugation here is just to keep the
  // random numbers in sync between CP conjugate event generations.
  return evtPtr;
}

name()

const std::string& DalitzPhaseSpaceBox::name ( ) const

inline

Definition at line 48 of file DalitzPhaseSpaceBox.h.

{return _name;}

pattern()

const DalitzEventPattern& DalitzPhaseSpaceBox::pattern ( ) const

inline

Definition at line 44 of file DalitzPhaseSpaceBox.h.

{return _pat;}

phaseSpaceIntegral() [1/2]

double DalitzPhaseSpaceBox::phaseSpaceIntegral

(

)

const

Definition at line 53 of file DalitzPhaseSpaceBox.cpp.

                                                    {
  return _phaseSpaceIntegral;
}

phaseSpaceIntegral() [2/2]

double DalitzPhaseSpaceBox::phaseSpaceIntegral

(

)

Definition at line 56 of file DalitzPhaseSpaceBox.cpp.

                                              {
  if(_phaseSpaceIntegral < 0) doPhaseSpaceIntegral();
  return _phaseSpaceIntegral;
}

print()

void DalitzPhaseSpaceBox::print

(

std::ostream &

os = std::cout

)

const

Definition at line 128 of file DalitzPhaseSpaceBox.cpp.

                                                   {
  os << "DalitzPhaseSpaceBox: " << name();
}

setName()

void DalitzPhaseSpaceBox::setName ( const std::string &  name )

inline

Definition at line 47 of file DalitzPhaseSpaceBox.h.

{  _name = name;}

setPattern()

void DalitzPhaseSpaceBox::setPattern

(

const DalitzEventPattern &

pat

)

Definition at line 45 of file DalitzPhaseSpaceBox.cpp.

                                                                 {
  _pat = pat;
  doPhaseSpaceIntegral();
}

setRnd()

bool DalitzPhaseSpaceBox::setRnd

(

TRandom *

rnd = gRandom

)

Definition at line 124 of file DalitzPhaseSpaceBox.cpp.

                                            {
  _rnd = rnd;
  return true;
}

setWeight()

void DalitzPhaseSpaceBox::setWeight ( double  w )

inline

Definition at line 33 of file DalitzPhaseSpaceBox.h.

{_weight = w;} // every event gets the same.

tryEventForOwner()

counted_ptr< DalitzEvent > DalitzPhaseSpaceBox::tryEventForOwner

(

)

Definition at line 91 of file DalitzPhaseSpaceBox.cpp.

                                                              {
  
  counted_ptr<DalitzEvent> evt(tryNewEvent());
  return evt;
}

tryNewEvent()

counted_ptr< DalitzEvent > DalitzPhaseSpaceBox::tryNewEvent ( )

private

Definition at line 120 of file DalitzPhaseSpaceBox.cpp.

                                                         {
  return makeEventForOwner(); 
}

volume()

double DalitzPhaseSpaceBox::volume

(

)

const

Definition at line 66 of file DalitzPhaseSpaceBox.cpp.

                                        {
  // bool dbThis = false;
  return phaseSpaceIntegral() * height();
}

weight() [1/2]

double DalitzPhaseSpaceBox::weight ( ) const

inline

Definition at line 34 of file DalitzPhaseSpaceBox.h.

{return _weight;}

weight() [2/2]

double& DalitzPhaseSpaceBox::weight ( )

inline

Definition at line 35 of file DalitzPhaseSpaceBox.h.

{return _weight;}

Member Data Documentation

_height

double DalitzPhaseSpaceBox::_height

private

Definition at line 23 of file DalitzPhaseSpaceBox.h.

_name

std::string DalitzPhaseSpaceBox::_name

private

Definition at line 20 of file DalitzPhaseSpaceBox.h.

_pat

DalitzEventPattern DalitzPhaseSpaceBox::_pat

private

Definition at line 21 of file DalitzPhaseSpaceBox.h.

_phaseSpaceIntegral

double DalitzPhaseSpaceBox::_phaseSpaceIntegral

private

Definition at line 25 of file DalitzPhaseSpaceBox.h.

_rnd

TRandom* DalitzPhaseSpaceBox::_rnd

private

Definition at line 22 of file DalitzPhaseSpaceBox.h.

_weight

double DalitzPhaseSpaceBox::_weight

private

Definition at line 24 of file DalitzPhaseSpaceBox.h.

---

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

• Mint/DalitzPhaseSpaceBox.h
• src/Mojito/BreitWignerMC/DalitzPhaseSpaceBox.cpp