mty::AmplitudeInitializer Class Reference

Public Member Functions
	AmplitudeInitializer (mty::Model const *t_model, mty::FeynOptions const &t_options, Kinematics const &t_kinematics, std::vector< mty::QuantumField > const &t_insertions, std::vector< mty::Lagrangian::TermType > &t_lagrangian)
	AmplitudeInitializer (mty::Model const *t_model, mty::FeynOptions const &t_options, Kinematics const &t_kinematics, std::vector< mty::QuantumField > const &t_insertions, std::vector< mty::FeynmanRule const *> &t_lagrangian)
Amplitude	getAmplitude (std::vector< std::vector< size_t >> const &terms)
void	initMomentumVertices (std::vector< FeynmanRule > &localRules, std::map< csl::Tensor, size_t > &vertexIds, std::vector< csl::Tensor > const &vertices, std::vector< csl::Tensor > &witnessVertices, csl::PseudoIntegral &integral, std::vector< csl::Expr > &fieldVertices)
std::vector< std::vector< size_t > >	getExternalSymmetries (csl::Expr &fieldProd) const
std::vector< csl::Expr >	applyExternalSymmetries (csl::Expr const &res, std::vector< size_t > perm) const
std::vector< csl::Expr >	applyAllExternalSymmetries (std::vector< csl::Expr > const &init, std::vector< std::vector< size_t >>::iterator first, std::vector< std::vector< size_t >>::iterator last) const
void	simplifyFullQuantumCalculation (mty::FeynmanDiagram &diagram, csl::PseudoIntegral const &integral, std::vector< size_t > const &posTerms, std::vector< std::vector< size_t >> &externalSym)
void	simplifyRuledCalculation (mty::FeynmanDiagram &diagram, csl::PseudoIntegral const &integral, std::vector< csl::Tensor > const &witnessVericesx, FeynruleMomentum &momentumMapping)

Static Public Member Functions
template<class ... Args>
static Amplitude	getAmplitude (std::vector< std::vector< size_t >> const &terms, Args &&...args)
static void	removeZeroDiagrams (std::vector< FeynmanDiagram > &diagrams)
static csl::Expr	getLSZInsertions (std::vector< mty::QuantumField > const &fields, std::vector< csl::Tensor > const &momenta, bool feynRuleCalculation)
static std::vector< csl::Tensor >	getVertices (size_t N)
static void	orderInsertions (std::vector< mty::QuantumField > &insertions, Kinematics &kinematics, FeynOptions &options)
	Order the field insertions (important for fermion ordering), applying the permutation to the associated kinematics. More...
static void	applyMomentumVertices (std::vector< csl::Tensor > const &witnessVertices, FeynruleMomentum &momentumMapping, csl::Expr &amplitude)

Private Member Functions
Amplitude	fullQuantumCalculation (std::vector< std::vector< size_t >> const &terms)
Amplitude	ruledCalculation (std::vector< std::vector< size_t >> const &terms)

Private Attributes
mty::Model const *	model
mty::FeynOptions	options
std::vector< mty::QuantumField >	insertions
Kinematics	kinematics
bool	feynRuleMode
	True if the calculation a calculation of Feynman rules (using the Lagrangian), false if the calculation uses Feynman rules. More...
std::vector< mty::Lagrangian::TermType > &	lagrangian
	Reference to the lagrangian term when the calculation does not use Feynman rules, reference to an empty vector otherwise.
std::vector< mty::FeynmanRule const * > &	feynmanRules
	Reference to the Feynman rules when the calculation does use Feynman rules, reference to an empty vector otherwise.

Static Private Attributes
static std::vector< mty::Lagrangian::TermType >	defaultL {}
static std::vector< mty::FeynmanRule const * >	defaultFR {}

Member Function Documentation

orderInsertions()

void mty::AmplitudeInitializer::orderInsertions ( std::vector< mty::QuantumField > &  insertions, Kinematics &  kinematics, FeynOptions &  options  )

static

Order the field insertions (important for fermion ordering), applying the permutation to the associated kinematics.

Parameters

insertions	Insertions to order.
kinematics	Kinematics that will follow the same order as the insertions.

Field Documentation

feynRuleMode

bool mty::AmplitudeInitializer::feynRuleMode

private

True if the calculation a calculation of Feynman rules (using the Lagrangian), false if the calculation uses Feynman rules.

Depending on the value of this boolean, one of the two references (lagrangian or feynmanRules) is a reference to an empty container while only the other is used in the calculation.

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

• include/amplitudeInitializer.h
• src/amplitudeInitializer.cpp