EvtDalitzPoint Class Reference

#include <EvtDalitzPoint.hh>

Public Member Functions
	EvtDalitzPoint ()
	EvtDalitzPoint (double mA, double mB, double mC, double qAB, double qBC, double qCA)
	EvtDalitzPoint (double mA, double mB, double mC, EvtCyclic3::Pair i, double qres, double qhel, double qsum)
	EvtDalitzPoint (const EvtDalitzPlot &, const EvtDalitzCoord &)
	EvtDalitzPoint (const EvtDalitzPoint &other)
	~EvtDalitzPoint ()
EvtDalitzCoord	getDalitzPoint (EvtCyclic3::Pair i, EvtCyclic3::Pair j) const
EvtDalitzPlot	getDalitzPlot () const
double	q (EvtCyclic3::Pair) const
double	bigM () const
double	m (EvtCyclic3::Index) const
double	qres (EvtCyclic3::Pair i) const
double	qhel (EvtCyclic3::Pair i) const
double	qsum () const
double	qMin (EvtCyclic3::Pair i, EvtCyclic3::Pair j) const
double	qMax (EvtCyclic3::Pair i, EvtCyclic3::Pair j) const
double	pp (EvtCyclic3::Index i, EvtCyclic3::Index j) const
double	e (EvtCyclic3::Index i, EvtCyclic3::Pair j) const
double	p (EvtCyclic3::Index i, EvtCyclic3::Pair j) const
double	cosTh (EvtCyclic3::Pair pairAng, EvtCyclic3::Pair pairRes) const
bool	isValid () const
void	print () const
	EvtDalitzPoint ()
	EvtDalitzPoint (double mA, double mB, double mC, double qAB, double qBC, double qCA)
	EvtDalitzPoint (double mA, double mB, double mC, EvtCyclic3::Pair i, double qres, double qhel, double qsum)
	EvtDalitzPoint (const EvtDalitzPlot &, const EvtDalitzCoord &)
	EvtDalitzPoint (const EvtDalitzPoint &other)
	~EvtDalitzPoint ()
EvtDalitzCoord	getDalitzPoint (EvtCyclic3::Pair i, EvtCyclic3::Pair j) const
EvtDalitzPlot	getDalitzPlot () const
double	q (EvtCyclic3::Pair) const
double	bigM () const
double	m (EvtCyclic3::Index) const
double	qres (EvtCyclic3::Pair i) const
double	qhel (EvtCyclic3::Pair i) const
double	qsum () const
double	qMin (EvtCyclic3::Pair i, EvtCyclic3::Pair j) const
double	qMax (EvtCyclic3::Pair i, EvtCyclic3::Pair j) const
double	pp (EvtCyclic3::Index i, EvtCyclic3::Index j) const
double	e (EvtCyclic3::Index i, EvtCyclic3::Pair j) const
double	p (EvtCyclic3::Index i, EvtCyclic3::Pair j) const
double	cosTh (EvtCyclic3::Pair pairAng, EvtCyclic3::Pair pairRes) const
bool	isValid () const
void	print () const

Detailed Description

Definition at line 27 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtDalitzPoint.hh.

Constructor & Destructor Documentation

EvtDalitzPoint() [1/10]

EvtDalitzPoint::EvtDalitzPoint

(

)

Definition at line 18 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtDalitzPoint.cc.

  : _mA(-1.), _mB(-1.), _mC(-1.), _qAB(-1.), _qBC(-1.), _qCA(-1.)
{}

EvtDalitzPoint() [2/10]

EvtDalitzPoint::EvtDalitzPoint	(	double	mA,
		double	mB,
		double	mC,
		double	qAB,
		double	qBC,
		double	qCA
	)

Definition at line 22 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtDalitzPoint.cc.

  : _mA(mA), _mB(mB), _mC(mC), _qAB(qAB), _qBC(qBC), _qCA(qCA)
{}

EvtDalitzPoint() [3/10]

EvtDalitzPoint::EvtDalitzPoint	(	double	mA,
		double	mB,
		double	mC,
		EvtCyclic3::Pair	i,
		double	qres,
		double	qhel,
		double	qsum
	)

Definition at line 28 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtDalitzPoint.cc.

  : _mA(mA), _mB(mB), _mC(mC)
{
  double qi = qres + qsum/3.;
  double qj = -qres/2. + qhel + qsum/3.;
  double qk = -qres/2. - qhel + qsum/3.;
  
  if(i == AB) { _qAB = qi; _qBC = qj; _qCA = qk; }
  else if(i == BC) { _qAB = qk; _qBC = qi; _qCA = qj; }
  else if(i == CA) { _qAB = qj; _qBC = qk; _qCA = qi; }
}

EvtDalitzPoint() [4/10]

EvtDalitzPoint::EvtDalitzPoint	(	const EvtDalitzPlot &	dp,
		const EvtDalitzCoord &	x
	)

Definition at line 42 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtDalitzPoint.cc.

  : _mA(dp.m(A)), _mB(dp.m(B)), _mC(dp.m(C))
{
  if(x.pair1() == AB) _qAB = x.q1();
  else
    if(x.pair2() == AB) _qAB = x.q2();
    else _qAB = dp.sum() - x.q1() - x.q2();
 
  if(x.pair1() == BC) _qBC = x.q1();
  else
    if(x.pair2() == BC) _qBC = x.q2();
    else _qBC = dp.sum() - x.q1() - x.q2();
 
  if(x.pair1() == CA) _qCA = x.q1();
  else
    if(x.pair2() == CA) _qCA = x.q2();
    else _qCA = dp.sum() - x.q1() - x.q2();
            
}

EvtDalitzPoint() [5/10]

EvtDalitzPoint::EvtDalitzPoint

(

const EvtDalitzPoint &

other

)

Definition at line 62 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtDalitzPoint.cc.

  : _mA(other._mA), _mB(other._mB), _mC(other._mC),
    _qAB(other._qAB), _qBC(other._qBC), _qCA(other._qCA)
{}

~EvtDalitzPoint() [1/2]

EvtDalitzPoint::~EvtDalitzPoint

(

)

Definition at line 67 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtDalitzPoint.cc.

{}

EvtDalitzPoint() [6/10]

EvtDalitzPoint::EvtDalitzPoint

(

)

EvtDalitzPoint() [7/10]

EvtDalitzPoint::EvtDalitzPoint	(	double	mA,
		double	mB,
		double	mC,
		double	qAB,
		double	qBC,
		double	qCA
	)

EvtDalitzPoint() [8/10]

EvtDalitzPoint::EvtDalitzPoint	(	double	mA,
		double	mB,
		double	mC,
		EvtCyclic3::Pair	i,
		double	qres,
		double	qhel,
		double	qsum
	)

EvtDalitzPoint() [9/10]

EvtDalitzPoint::EvtDalitzPoint	(	const EvtDalitzPlot &	,
		const EvtDalitzCoord &
	)

EvtDalitzPoint() [10/10]

EvtDalitzPoint::EvtDalitzPoint

(

const EvtDalitzPoint &

other

)

~EvtDalitzPoint() [2/2]

EvtDalitzPoint::~EvtDalitzPoint

(

)

Member Function Documentation

bigM() [1/2]

double EvtDalitzPoint::bigM

(

)

const

Definition at line 176 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtDalitzPoint.cc.

{
  return sqrt(_qAB+_qBC+_qCA - _mA*_mA - _mB*_mB - _mC*_mC);
}

Referenced by getDalitzPlot(), and isValid().

bigM() [2/2]

double EvtDalitzPoint::bigM

(

)

const

cosTh() [1/2]

double EvtDalitzPoint::cosTh	(	EvtCyclic3::Pair	pairAng,
		EvtCyclic3::Pair	pairRes
	)		const

Definition at line 138 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtDalitzPoint.cc.

{
  EvtDalitzPlot dp = getDalitzPlot();
  return dp.cosTh(pairAng,q(pairAng),pairRes,q(pairRes));
}

Referenced by EvtPto3P::initDaughters().

cosTh() [2/2]

double EvtDalitzPoint::cosTh	(	EvtCyclic3::Pair	pairAng,
		EvtCyclic3::Pair	pairRes
	)		const

e() [1/2]

double EvtDalitzPoint::e	(	EvtCyclic3::Index	i,
		EvtCyclic3::Pair	j
	)		const

Definition at line 126 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtDalitzPoint.cc.

{ 
  EvtDalitzPlot dp = getDalitzPlot();
  return dp.e(i,j,q(j)); 
}

Referenced by EvtPto3P::initDaughters().

e() [2/2]

double EvtDalitzPoint::e	(	EvtCyclic3::Index	i,
		EvtCyclic3::Pair	j
	)		const

getDalitzPlot() [1/2]

EvtDalitzPlot EvtDalitzPoint::getDalitzPlot

(

)

const

Definition at line 151 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtDalitzPoint.cc.

{
  return EvtDalitzPlot(_mA,_mB,_mC,bigM());
}

Referenced by cosTh(), e(), isValid(), p(), print(), qMax(), and qMin().

getDalitzPlot() [2/2]

EvtDalitzPlot EvtDalitzPoint::getDalitzPlot

(

)

const

getDalitzPoint() [1/2]

EvtDalitzCoord EvtDalitzPoint::getDalitzPoint	(	EvtCyclic3::Pair	i,
		EvtCyclic3::Pair	j
	)		const

Definition at line 145 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtDalitzPoint.cc.

{
  return EvtDalitzCoord(i,q(i),j,q(j));
}

getDalitzPoint() [2/2]

EvtDalitzCoord EvtDalitzPoint::getDalitzPoint	(	EvtCyclic3::Pair	i,
		EvtCyclic3::Pair	j
	)		const

isValid() [1/2]

bool EvtDalitzPoint::isValid

(

)

const

Definition at line 156 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtDalitzPoint.cc.

{ 
  // Check masses
 
  double M = bigM();
  if(_mA < 0 || _mB < 0 || _mC < 0 || M <= 0) return false;
  if(M < _mA + _mB + _mC) return false;
 
  // Check that first coordinate is within absolute limits
 
  bool inside = false; 
  EvtDalitzPlot dp = getDalitzPlot();
 
  if(dp.qAbsMin(AB) <= _qAB && _qAB <= dp.qAbsMax(AB)) 
    if(qMin(BC,AB) <= _qBC && _qBC <= qMax(BC,AB))
      inside = true;
  
  return inside;
}

Referenced by EvtPto3P::initDaughters(), and EvtDalitzResPdf::randomPoint().

isValid() [2/2]

bool EvtDalitzPoint::isValid

(

)

const

m() [1/2]

double EvtDalitzPoint::m

(

EvtCyclic3::Index

i

)

const

Definition at line 80 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtDalitzPoint.cc.

{
  double ret = _mA;
  if(B == i) ret = _mB;
  else
    if(C == i) ret = _mC;
  
  return ret;
}

Referenced by pp().

m() [2/2]

double EvtDalitzPoint::m

(

EvtCyclic3::Index

)

const

p() [1/2]

double EvtDalitzPoint::p	(	EvtCyclic3::Index	i,
		EvtCyclic3::Pair	j
	)		const

Definition at line 132 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtDalitzPoint.cc.

{ 
  EvtDalitzPlot dp = getDalitzPlot();
  return dp.p(i,j,q(j)); 
}

Referenced by EvtPto3P::initDaughters().

p() [2/2]

double EvtDalitzPoint::p	(	EvtCyclic3::Index	i,
		EvtCyclic3::Pair	j
	)		const

pp() [1/2]

double EvtDalitzPoint::pp	(	EvtCyclic3::Index	i,
		EvtCyclic3::Index	j
	)		const

Definition at line 120 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtDalitzPoint.cc.

{
  if(i == j) return m(i)*m(i);  
  else return (q(combine(i,j)) - m(i)*m(i) - m(j)*m(j))/2.;
}

pp() [2/2]

double EvtDalitzPoint::pp	(	EvtCyclic3::Index	i,
		EvtCyclic3::Index	j
	)		const

print() [1/2]

void EvtDalitzPoint::print

(

)

const

Definition at line 182 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtDalitzPoint.cc.

{
  getDalitzPlot().print();
  printf("%f %f %f\n",_qAB,_qBC,_qCA);
}

print() [2/2]

void EvtDalitzPoint::print

(

)

const

q() [1/2]

double EvtDalitzPoint::q

(

EvtCyclic3::Pair

i

)

const

Definition at line 70 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtDalitzPoint.cc.

{
  double ret = _qAB;
  if(BC == i) ret = _qBC;
  else
    if(CA == i) ret = _qCA;
  
  return ret;
}

q() [2/2]

double EvtDalitzPoint::q

(

EvtCyclic3::Pair

)

const

qhel() [1/2]

double EvtDalitzPoint::qhel

(

EvtCyclic3::Pair

i

)

const

Definition at line 96 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtDalitzPoint.cc.

{
  Pair j = next(i);
  Pair k = prev(i);
  return (q(j) - q(k))/2.;
}

Referenced by EvtDalitzPoint().

qhel() [2/2]

double EvtDalitzPoint::qhel

(

EvtCyclic3::Pair

i

)

const

qMax() [1/2]

double EvtDalitzPoint::qMax	(	EvtCyclic3::Pair	i,
		EvtCyclic3::Pair	j
	)		const

Definition at line 114 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtDalitzPoint.cc.

{
  EvtDalitzPlot dp = getDalitzPlot();
  return dp.qMax(i,j,q(j));
}

Referenced by isValid().

qMax() [2/2]

double EvtDalitzPoint::qMax	(	EvtCyclic3::Pair	i,
		EvtCyclic3::Pair	j
	)		const

qMin() [1/2]

double EvtDalitzPoint::qMin	(	EvtCyclic3::Pair	i,
		EvtCyclic3::Pair	j
	)		const

Definition at line 108 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtDalitzPoint.cc.

{
  EvtDalitzPlot dp = getDalitzPlot();
  return dp.qMin(i,j,q(j));
}

Referenced by isValid().

qMin() [2/2]

double EvtDalitzPoint::qMin	(	EvtCyclic3::Pair	i,
		EvtCyclic3::Pair	j
	)		const

qres() [1/2]

double EvtDalitzPoint::qres

(

EvtCyclic3::Pair

i

)

const

Definition at line 92 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtDalitzPoint.cc.

{
  return (2.*q(i) - q(EvtCyclic3::prev(i)) - q(EvtCyclic3::next(i)))/3.;
}

Referenced by EvtDalitzPoint().

qres() [2/2]

double EvtDalitzPoint::qres

(

EvtCyclic3::Pair

i

)

const

qsum() [1/2]

double EvtDalitzPoint::qsum

(

)

const

Definition at line 102 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtDalitzPoint.cc.

{
  return _qAB + _qBC + _qCA;
}

Referenced by EvtDalitzPoint().

qsum() [2/2]

double EvtDalitzPoint::qsum

(

)

const

---

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

• bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtDalitzPoint.hh
• BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtDalitzPoint.hh
• bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtDalitzPoint.cc
• BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtDalitzPoint.cc