Wigner.h File Reference

#include "AmpGen/Expression.h"
#include "AmpGen/Tensor.h"
#include "AmpGen/Particle.h"
#include "AmpGen/Transform.h"

Go to the source code of this file.

Classes
struct	AmpGen::Helicity::Flags
struct	AmpGen::LS

Namespaces
namespace	AmpGen
namespace	AmpGen::Helicity

Typedefs
using	AmpGen::TransformCache = std::map<std::string, TransformSequence>

Functions
Expression	AmpGen::wigner_d (const Expression &cb, const double &j, const double &m, const double &n)
Expression	AmpGen::wigner_D (const std::pair< Expression, Expression > &P, const double &J, const double &lA, const double &lB, DebugSymbols *db)
double	AmpGen::CG (const double &j1, const double &m1, const double &j2, const double &m2, const double &J, const double &M)
	Calculates the Clebsch-Gordan coefficient for (j1 m1 j2 m2 | J M), the expansion coefficients in.
TransformSequence	AmpGen::wickTransform (const Tensor &P, const Particle &p, const int &ve=1, DebugSymbols *db=nullptr)
	Generates a wick transform sequence that aligns tensor P (four-vector) to the +/- ve z-axis, then boosts to the rest frame.
Expression	AmpGen::helicityAmplitude (const Particle &particle, const TransformSequence &parentFrame, const double &Mz, DebugSymbols *db, const Helicity::Flags &flags=Helicity::Flags(), const int sgn=1, std::shared_ptr< TransformCache > cacheptr=nullptr)
Tensor	AmpGen::basisSpinor (const int &polState, const int &id)
Tensor	AmpGen::basisVector (const int &polState)
std::vector< LS >	AmpGen::calculate_recoupling_constants (const double &J, const double &M, const double &L, const double &S, const double &j1, const double &j2)

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Class Documentation

AmpGen::Helicity::Flags

struct AmpGen::Helicity::Flags

Class Members
bool	alignFrames = {true}
bool	movingHead = {true}

AmpGen::LS

struct AmpGen::LS

Class Members
double	cg1 = {0}
double	cg2 = {0}
double	factor = {1}
double	m1 = {0}
double	m2 = {0}
double	p = {0}