OpenLoopsAmplitude implements an interface to OpenLoops. More...

#include <OpenLoopsAmplitude.h>

Inheritance diagram for Herwig::OpenLoopsAmplitude:

[legend]

Public Member Functions
Standard constructors and destructors.
	OpenLoopsAmplitude ()
	The default constructor.

virtual	~OpenLoopsAmplitude ()
	The destructor.

virtual void	fillOrderFile (const map< pair< Process, int >, int > &procs)

virtual bool	isCS () const
	Return true, if one loop corrections are given in the conventions of the integrated dipoles.

virtual bool	isExpanded () const
	Return true, if one loop corrections are given in the conventions of everything expanded.

virtual bool	isBDK () const
	Return true, if one loop corrections are given in the conventions of BDK.

virtual bool	checkOLPContract ()
	Start the one loop provider, if appropriate, giving order and contract files.

virtual void	startOLP (const string &, int &status)
	Start the one loop provider, if appropriate.

virtual bool	startOLP (const map< pair< Process, int >, int > &procs)
	Return the value of the dimensional regularization parameter.

virtual bool	hasInitialAverage () const
	Return true, if this amplitude already includes averaging over incoming parton's quantum numbers.

virtual bool	hasFinalStateSymmetry () const
	Return true, if this amplitude already includes symmetry factors for identical outgoing particles.

void	evalSubProcess () const
	Call OLP_EvalSubProcess and fill in the results.

virtual void	evalColourCorrelator (pair< int, int > ij) const
	Fill in results for the given colour correlator.

virtual void	evalSpinColourCorrelator (pair< int, int > ij) const
	Fill in results for the given colour/spin correlator.

virtual double	spinColourCorrelatedME2 (pair< int, int > ij, const SpinCorrelationTensor &c) const
	Return the colour and spin correlated matrix element.

Public Member Functions inherited from Herwig::MatchboxOLPME
	MatchboxOLPME ()
	The default constructor.

virtual bool	canHandle (const PDVector &p, Ptr< MatchboxFactory >::tptr, bool) const
	Return true, if this amplitude can handle the given process.

virtual void	orderInGs (unsigned int ogs)
	Set the (tree-level) order in \(g_S\) in which this matrix element should be evaluated.

virtual unsigned int	orderInGs () const
	Return the (tree-level) order in \(g_S\) in which this matrix element is given.

virtual void	orderInGem (unsigned int oge)
	Set the (tree-level) order in \(g_{EM}\) in which this matrix element should be evaluated.

virtual unsigned int	orderInGem () const
	Return the (tree-level) order in \(g_{EM}\) in which this matrix element is given.

virtual bool	isOLPTree () const
	Return true, if this amplitude is handled by a BLHA one-loop provider.

virtual bool	isOLPLoop () const
	Return true, if this amplitude is handled by a BLHA one-loop provider.

virtual bool	haveColourFlows () const
	Return true, if the colour basis is capable of assigning colour flows.

virtual void	setXComb (tStdXCombPtr xc)
	Set the xcomb object.

virtual void	prepareAmplitudes (Ptr< MatchboxMEBase >::tcptr)
	Calculate the tree level amplitudes for the phasespace point stored in lastXComb.

virtual double	me2 () const
	Return the matrix element squared.

virtual double	colourCorrelatedME2 (pair< int, int > ij) const
	Return the colour correlated matrix element.

virtual double	largeNColourCorrelatedME2 (pair< int, int >, Ptr< ColourBasis >::tptr) const
	Return the large-N colour correlated matrix element.

virtual double	largeNME2 (Ptr< ColourBasis >::tptr largeNBasis) const
	Return the largeN matrix element squared.

virtual double	spinColourCorrelatedME2 (pair< int, int > ij, const SpinCorrelationTensor &c) const
	Return the colour and spin correlated matrix element.

virtual double	spinCorrelatedME2 (pair< int, int > ij, const SpinCorrelationTensor &c) const
	Return the spin correlated matrix element.

virtual bool	treeAmplitudes () const
	Return true, if tree-level contributions will be evaluated at amplitude level.

virtual bool	haveOneLoop () const
	Return true, if this amplitude is capable of calculating one-loop (QCD) corrections.

virtual bool	onlyOneLoop () const
	Return true, if this amplitude only provides one-loop (QCD) corrections.

virtual bool	oneLoopAmplitudes () const
	Return true, if one-loop contributions will be evaluated at amplitude level.

virtual bool	isExpanded () const
	Return true, if one loop corrections are given in the conventions of everything expanded.

virtual Energy2	mu2 () const
	Return the value of the dimensional regularization parameter.

virtual bool	hasRunningAlphaS () const
	Indicate that this amplitude is running alphas by itself.

virtual bool	hasRunningAlphaEW () const
	Indicate that this amplitude is running alphaew by itself.

virtual double	oneLoopDoublePole () const
	If defined, return the coefficient of the pole in epsilon^2.

virtual double	oneLoopSinglePole () const
	If defined, return the coefficient of the pole in epsilon.

virtual void	prepareOneLoopAmplitudes (Ptr< MatchboxMEBase >::tcptr)
	Calculate the one-loop amplitudes for the phasespace point stored in lastXComb, if provided.

virtual double	oneLoopInterference () const
	Return the one-loop/tree interference.

virtual void	evalSubProcess () const =0
	Call OLP_EvalSubProcess and fill in the results.

virtual void	evalColourCorrelator (pair< int, int > ij) const =0
	Fill in results for the given colour correlator.

virtual void	evalSpinColourCorrelator (pair< int, int > ij) const =0
	Fill in results for the given colour/spin correlator.

virtual void	evalSpinCorrelator (pair< int, int > ij) const
	Fill in results for the given spin correlator; may not be supported.

void	persistentOutput (PersistentOStream &os) const
	Function used to write out object persistently.

void	persistentInput (PersistentIStream &is, int version)
	Function used to read in object persistently.

Public Member Functions inherited from Herwig::MatchboxAmplitude
	MatchboxAmplitude ()
	The default constructor.

virtual Complex	value (const tcPDVector &particles, const vector< Lorentz5Momentum > &momenta, const vector< int > &helicities)
	Return the amplitude.

Ptr< MatchboxFactory >::tptr	factory () const
	Return the factory which produced this matrix element.

virtual bool	canHandle (const PDVector &) const
	Return true, if this amplitude can handle the given process.

virtual int	nDimAdditional () const
	Return the number of random numbers required to evaluate this amplitude at a fixed phase space point.

virtual Ptr< MatchboxMEBase >::ptr	makeME (const PDVector &) const
	Return a ME instance appropriate for this amplitude and the given subprocesses.

Ptr< StandardModel >::tcptr	standardModel ()
	Return the Herwig StandardModel object.

virtual bool	needsOLPCorrelators () const
	Return true, if colour and spin correlated matrix elements should be ordered from the OLP.

virtual void	olpOrderFileHeader (ostream &) const
	Write the order file header.

virtual void	olpOrderFileProcesses (ostream &, const map< pair< Process, int >, int > &procs) const
	Write the order file process list.

virtual void	signOLP (const string &, const string &)
	Start the one loop provider, if appropriate, giving order and contract files.

virtual bool	isExternal () const
	Return true, if this amplitude needs to initialize an external code.

virtual bool	initializeExternal ()
	Initialize this amplitude.

virtual int	externalId (const cPDVector &)
	Return a generic process id for the given process.

const map< long, Energy > &	reshuffleMasses () const
	Return the map with masses to be used for amplitude evaluation.

void	checkReshuffling (Ptr< MatchboxPhasespace >::tptr)
	Check if reshuffling is needed at all.

virtual bool	hasAmplitudeMomenta () const
	Return true, if this amplitude makes use of amplitudeMomenta.

virtual Ptr< ColourBasis >::tptr	colourBasis () const
	Return the colour basis.

virtual Selector< const ColourLines * >	colourGeometries (tcDiagPtr diag) const
	Return a Selector with possible colour geometries for the selected diagram weighted by their relative probabilities.

const string &	colourOrderingString (size_t id) const
	Return an ordering identifier for the current subprocess and colour absis tensor index.

const set< vector< size_t > > &	colourOrdering (size_t id) const
	Return an ordering identifier for the current subprocess and colour absis tensor index.

Lorentz5Momentum	amplitudeMomentum (int) const
	Return the momentum as crossed appropriate for this amplitude.

virtual void	fillCrossingMap (size_t shift=0)
	Perform a normal ordering of external legs and fill the crossing information as.

virtual set< vector< int > >	generateHelicities () const
	Generate the helicity combinations.

virtual vector< unsigned int >	physicalHelicities (const vector< int > &) const
	Return the helicity combination of the physical process in the conventions used by the spin correlation algorithm.

double	colourCharge (tcPDPtr) const
	Return the colour charge of a given leg.

double	largeNColourCharge (tcPDPtr) const
	Return the large-N charge of a given leg.

bool	trivialColourLegs () const
	Return true if trivial colour configuration.

virtual bool	canFillRhoMatrix () const
	Return true, if this amplitude is capable of consistently filling the rho matrices for the spin correllations.

virtual LorentzVector< Complex >	plusPolarization (const Lorentz5Momentum &p, const Lorentz5Momentum &n, int id=-1) const
	Return a positive helicity polarization vector for a gluon of momentum p (with reference vector n) to be used when evaluating spin correlations.

virtual Complex	evaluate (size_t, const vector< int > &, Complex &)
	Evaluate the amplitude for the given colour tensor id and helicity assignment.

virtual Ptr< MatchboxAmplitude >::tptr	oneLoopAmplitude () const
	Return the one-loop amplitude, if applicable.

virtual void	disableOneLoop ()
	Diasble one-loop functionality if not needed.

virtual bool	isDR () const
	Return true, if one loop corrections have been calculated in dimensional reduction.

virtual bool	isDRbar () const
	Return true, if the amplitude is DRbar renormalized, otherwise MSbar is assumed.

virtual Complex	evaluateOneLoop (size_t, const vector< int > &)
	Evaluate the amplitude for the given colour tensor id and helicity assignment.

virtual void	flushCaches ()
	Flush all cashes.

Ptr< MatchboxAmplitude >::ptr	cloneMe () const
	Clone this amplitude.

virtual void	cloneDependencies (const std::string &prefix="", bool slim=false)
	Clone the dependencies, using a given prefix.

void	persistentOutput (PersistentOStream &os) const
	Function used to write out object persistently.

void	persistentInput (PersistentIStream &is, int version)
	Function used to read in object persistently.

Public Member Functions inherited from ThePEG::Amplitude
Amplitude &	operator= (const Amplitude &)=delete

Public Member Functions inherited from ThePEG::HandlerBaseT< UseRandom >
double	rnd () const

double	rnd (double xu) const

double	rnd (double xl, double xu) const

bool	rndbool () const

bool	rndbool (double p) const

bool	rndbool (double p1, double p2) const

int	rndsign (double p1, double p2, double p3) const

int	rnd2 (double p0, double p1) const

int	rnd3 (double p0, double p1, double p2) const

int	rnd4 (double p0, double p1, double p2, double p3) const

long	irnd (long xu=2) const

long	irnd (long xl, long xu) const

const StandardModelBase &	SM () const

tSMPtr	standardModel () const

Public Member Functions inherited from ThePEG::Interfaced
virtual bool	defaultInit ()

PPtr	getParticle (PID) const

PDPtr	getParticleData (PID) const

bool	used () const

void	useMe () const

tEGPtr	generator () const

void	persistentOutput (PersistentOStream &os) const

void	persistentInput (PersistentIStream &is, int version)

PPtr	getParticle (PID) const

PDPtr	getParticleData (PID) const

bool	used () const

void	useMe () const

tEGPtr	generator () const

Public Member Functions inherited from ThePEG::InterfacedBase
string	fullName () const

string	name () const

string	path () const

string	comment () const

void	setup (istream &is)

void	update ()

void	init ()

virtual bool	preInitialize () const

void	initrun ()

void	finish ()

void	touch ()

void	reset ()

void	clear ()

InitState	state () const

bool	locked () const

bool	touched () const

virtual IBPtr	fullclone () const

void	persistentOutput (PersistentOStream &os) const

void	persistentInput (PersistentIStream &is, int version)

virtual void	debugme () const

void	update ()

void	init ()

virtual bool	preInitialize () const

void	initrun ()

void	finish ()

void	touch ()

void	reset ()

void	clear ()

InitState	state () const

bool	locked () const

bool	touched () const

virtual IBPtr	fullclone () const

Public Member Functions inherited from ThePEG::Base
void	debug () const

virtual void	debugme () const

Public Member Functions inherited from ThePEG::Pointer::ReferenceCounted
CounterType	referenceCount () const

Public Member Functions inherited from ThePEG::Named
	Named (const string &newName=string())

	Named (const Named &)=default

const string &	name () const

bool	operator== (const Named &other) const

bool	operator< (const Named &other) const

Public Member Functions inherited from ThePEG::LastXCombInfo< StandardXComb >
const XC &	lastXComb () const

const XC &	lastXComb () const

tXCPtr	lastXCombPtr () const

tXCPtr	lastXCombPtr () const

const XC &	lastHeadXComb () const

const XC &	lastHeadXComb () const

tXCPtr	lastHeadXCombPtr () const

tXCPtr	lastHeadXCombPtr () const

const EventHandler &	lastEventHandler () const

const EventHandler &	lastEventHandler () const

tPExtrPtr	lastExtractor () const

tPExtrPtr	lastExtractor () const

PDFT	pdf (tcPPtr parton) const

PDFT	pdf (tcPPtr parton) const

const Cuts &	lastCuts () const

const Cuts &	lastCuts () const

tCutsPtr	lastCutsPtr () const

tCutsPtr	lastCutsPtr () const

const PPair &	lastParticles () const

const PPair &	lastParticles () const

Energy2	lastS () const

Energy2	lastS () const

const PPair &	lastPartons () const

const PPair &	lastPartons () const

Energy2	lastSHat () const

Energy2	lastSHat () const

double	lastTau () const

double	lastTau () const

double	lastY () const

double	lastY () const

double	lastP1 () const

double	lastP1 () const

double	lastP2 () const

double	lastP2 () const

double	lastL1 () const

double	lastL1 () const

double	lastL2 () const

double	lastL2 () const

double	lastX1 () const

double	lastX1 () const

double	lastX2 () const

double	lastX2 () const

double	lastE1 () const

double	lastE1 () const

double	lastE2 () const

double	lastE2 () const

double	lastFL1L2 () const

double	lastFL1L2 () const

Energy2	lastScale () const

double	lastAlphaS () const

double	lastAlphaEM () const

const vector< Lorentz5Momentum > &	meMomenta () const

double	lastME2 () const

double	lastPreweight () const

double	jacobian () const

CrossSection	lastMECrossSection () const

double	lastMEPDFWeight () const

double	lastMECouplings () const

tSubProPtr	subProcess () const

const cPDVector &	mePartonData () const

Public Member Functions inherited from Herwig::LastMatchboxXCombInfo
	LastMatchboxXCombInfo ()
	Default constructor.

MatchboxXCombData *	lastMatchboxXComb () const
	Return a pointer to the last selected XComb.

MatchboxXCombData *	lastHeadMatchboxXComb () const
	If the last selected XComb object belongs to a group of XComb's return a pointer to the head XComb object for this group.

const vector< int > &	crossingMap () const
	The crossing information as filled by the last call to fillCrossingMap()

const map< size_t, size_t > &	amplitudeToColourMap () const
	The colour crossing information as filled by the last call to fillCrossingMap()

const map< size_t, size_t > &	colourToAmplitudeMap () const
	The colour crossing information as filled by the last call to fillCrossingMap()

double	crossingSign () const
	The crossing sign as filled by the last call to fillCrossingMap()

Energy2	lastRenormalizationScale () const
	The last renormalization scale.

const cPDVector &	amplitudePartonData () const
	The amplitude parton data.

const vector< Lorentz5Momentum > &	amplitudeMomenta () const
	The crossed momenta.

bool	calculateTreeAmplitudes () const
	True, if the the tree level amplitudes need to be calculated.

const map< vector< int >, CVector > &	lastAmplitudes () const
	The amplitude values which have been contributing to the last call of prepareAmplitudes.

const map< vector< int >, CVector > &	lastLargeNAmplitudes () const
	The leading N amplitude values which have been contributing to the last call of prepareAmplitudes.

bool	calculateOneLoopAmplitudes () const
	True, if the the one-loop amplitudes need to be calculated.

const map< vector< int >, CVector > &	lastOneLoopAmplitudes () const
	The one-loop amplitude values which have been contributing to the last call of prepareAmplitudes.

bool	calculateTreeME2 () const
	True, if the tree-level matrix element squared needs to be calculated.

double	lastTreeME2 () const
	The last tree-level matrix element squared.

bool	calculateLargeNME2 () const
	True, if the tree-level matrix element squared needs to be calculated.

double	lastLargeNME2 () const
	The last tree-level matrix element squared.

bool	calculateOneLoopInterference () const
	True, if the one-loop/tree-level interference.

double	lastOneLoopInterference () const
	The last one-loop/tree-level interference.

bool	calculateOneLoopPoles () const
	True, if the one-loop/tree-level interference.

pair< double, double >	lastOneLoopPoles () const
	The last one-loop/tree-level interference.

bool	calculateColourCorrelator (const pair< int, int > &ij) const
	True, if the indexed colour correlated matrix element needs to be calculated.

double	lastColourCorrelator (const pair< int, int > &ij) const
	The colour correlated matrix element.

bool	calculateLargeNColourCorrelator (const pair< int, int > &ij) const
	True, if the indexed large-N colour correlated matrix element needs to be calculated.

double	lastLargeNColourCorrelator (const pair< int, int > &ij) const
	The large-N colour correlated matrix element.

bool	calculateColourSpinCorrelator (const pair< int, int > &ij) const
	True, if the indexed colour/spin correlated matrix element needs to be calculated.

Complex	lastColourSpinCorrelator (const pair< int, int > &ij) const
	The colour/spin correlated matrix element.

bool	calculateSpinCorrelator (const pair< int, int > &ij) const
	True, if the indexed spin correlated matrix element needs to be calculated.

Complex	lastSpinCorrelator (const pair< int, int > &ij) const
	The spin correlated matrix element.

unsigned int	nLight () const
	Return the number of light flavours to be considered for this process.

vector< long >	nLightJetVec () const
	Return the vector that contains the PDG ids of the light flavours, which are contained in the jet particle group.

vector< long >	nHeavyJetVec () const
	Return the vector that contains the PDG ids of the heavy flavours, which are contained in the jet particle group.

vector< long >	nLightProtonVec () const
	Return the vector that contains the PDG ids of the light flavours, which are contained in the proton particle group.

size_t	colourBasisDim () const
	Get the dimensionality of the colour basis for this process.

int	nDimPhasespace () const
	Return the number of degrees of freedom required by the phase space generator.

int	nDimAmplitude () const
	Return the number of degrees of freedom required by the amplitude.

int	nDimInsertions () const
	Return the number of degrees of freedom required by the insertion operators.

const vector< double > &	amplitudeRandomNumbers () const
	Get the additional random numbers required by the amplitude.

const vector< double > &	insertionRandomNumbers () const
	Get the additional random numbers required by the insertion operator.

const map< int, double > &	diagramWeights () const
	Return the diagram weights indexed by diagram id.

const set< pair< size_t, size_t > > &	singularLimits () const
	Return the singular limits.

const set< pair< size_t, size_t > >::const_iterator &	lastSingularLimit () const
	Return the last matched singular limit.

Ptr< StandardModel >::tcptr	hwStandardModel () const
	Get the Herwig StandardModel object.

double	symmetryFactor () const
	Return the symmetry factor.

const vector< int > &	olpId () const
	Return the OLP process id.

double *	olpMomenta () const
	Return the olp momentum vector.

void	fillOLPMomenta (const vector< Lorentz5Momentum > &mm, const cPDVector &mePartonData, const map< long, Energy > &reshuffleMap) const
	Fill the olp momentum vector.

Clone Methods.
vector< double >	colourCorrelatorResults
	Store colour correlator results.

vector< double >	spinColourCorrelatorResults
	Store spin colour correlator results.

map< int, OpenLoopsProcInfo >	processmap
	Helper map to store information in different procs.

bool	theHiggsEff
	Interface for Higgs Effective.

bool	use_cms
	Complex Mass Scheme.

bool	theCollierLib =true
	Use of Collier Lib (arXiv:1604.06792), available since OpenLoops 1.3.0.

int	psp_tolerance
	parameter to set Phase space tolerance for massiv particles.

bool	theDiagonal
	True, if a diagonal CKM matrix should be assumed.

static vector< int >	idpair
	first is the olp id from herwig, second the answer from openloops

static string	OpenLoopsLibs_
	Location of the OpenLoops libraries.

static string	OpenLoopsPrefix_
	Location of the OpenLoops.

virtual IBPtr	clone () const
	Make a simple clone of this object.

virtual IBPtr	fullclone () const
	Make a clone of this object, possibly modifying the cloned object to make it sane.

virtual void	doinitrun ()
	Initialize this object.

OpenLoopsAmplitude &	operator= (const OpenLoopsAmplitude &)=delete
	The assignment operator is private and must never be called.

void	setOpenLoopsLibs (string p)
	Helper functions to make long strings static.

string	getOpenLoopsLibs () const

void	setOpenLoopsPrefix (string p)

string	getOpenLoopsPrefix () const

Functions used by the persistent I/O system.
void	persistentOutput (PersistentOStream &os) const
	Function used to write out object persistently.

void	persistentInput (PersistentIStream &is, int version)
	Function used to read in object persistently.

static void	Init ()
	The standard Init function used to initialize the interfaces.

Additional Inherited Members
Public Types inherited from ThePEG::InterfacedBase
enum	InitState

Public Types inherited from ThePEG::Pointer::ReferenceCounted
typedef unsigned int	CounterType

Public Types inherited from ThePEG::LastXCombInfo< StandardXComb >
typedef ThePEG::Ptr< XC >::pointer	XCPtr

typedef ThePEG::Ptr< XC >::const_pointer	cXCPtr

typedef ThePEG::Ptr< XC >::transient_pointer	tXCPtr

typedef ThePEG::Ptr< XC >::transient_const_pointer	tcXCPtr

Static Public Member Functions inherited from Herwig::MatchboxOLPME
static void	Init ()
	The standard Init function used to initialize the interfaces.

Static Public Member Functions inherited from Herwig::MatchboxAmplitude
static void	Init ()
	The standard Init function used to initialize the interfaces.

Static Public Member Functions inherited from ThePEG::Amplitude
static void	Init ()

Static Public Member Functions inherited from ThePEG::HandlerBase
static void	Init ()

Static Public Member Functions inherited from ThePEG::Interfaced
static void	Init ()

Static Public Member Functions inherited from ThePEG::InterfacedBase
static void	Init ()

Static Public Member Functions inherited from ThePEG::Base
static void	Init ()

Public Attributes inherited from ThePEG::InterfacedBase
	initializing

	uninitialized

	initialized

	runready

Public Attributes inherited from ThePEG::Pointer::ReferenceCounted
const unsigned long	uniqueId

Static Public Attributes inherited from ThePEG::Amplitude
static AbstractNoPIOClassDescription< Amplitude >	initAmplitude

Protected Member Functions inherited from Herwig::MatchboxOLPME
virtual void	doinit ()
	Initialize this object after the setup phase before saving an EventGenerator to disk.

Protected Member Functions inherited from Herwig::MatchboxAmplitude
Protected Member Functions inherited from ThePEG::Interfaced
void	reporeg (IBPtr object, string name) const

bool	setDefaultReference (PtrT &ptr, string classname, string objectname)

	Interfaced (const string &newName)

	Interfaced (const Interfaced &i)

void	setGenerator (tEGPtr generator)

Protected Member Functions inherited from ThePEG::InterfacedBase
virtual void	readSetup (istream &is)

virtual void	doupdate ()

virtual void	doinit ()

virtual void	doinitrun ()

virtual void	dofinish ()

virtual IVector	getReferences ()

virtual void	rebind (const TranslationMap &)

virtual IBPtr	clone () const=0

	InterfacedBase (string newName)

	InterfacedBase (const InterfacedBase &i)

virtual void	readSetup (istream &is)

virtual void	doupdate ()

virtual void	doinit ()

virtual void	doinitrun ()

virtual void	dofinish ()

virtual IVector	getReferences ()

virtual void	rebind (const TranslationMap &)

Protected Member Functions inherited from ThePEG::Pointer::ReferenceCounted
	ReferenceCounted (const ReferenceCounted &)

ReferenceCounted &	operator= (const ReferenceCounted &)

Protected Member Functions inherited from ThePEG::Named
const Named &	operator= (const Named &other)

const string &	name (const string &newName)

Protected Member Functions inherited from Herwig::LastMatchboxXCombInfo
vector< int > &	crossingMap ()
	The crossing information as filled by the last call to fillCrossingMap()

map< size_t, size_t > &	amplitudeToColourMap ()
	The colour crossing information as filled by the last call to fillCrossingMap()

map< size_t, size_t > &	colourToAmplitudeMap ()
	The colour crossing information as filled by the last call to fillCrossingMap()

void	crossingSign (double c)
	The crossing sign as filled by the last call to fillCrossingMap()

void	lastRenormalizationScale (Energy2 lrs)
	The last renormalization scale.

cPDVector &	amplitudePartonData ()
	The amplitude parton data.

vector< Lorentz5Momentum > &	amplitudeMomenta ()
	The crossed momenta.

void	haveTreeAmplitudes (bool f=true)
	True, if the the tree level amplitudes need to be calculated.

map< vector< int >, CVector > &	lastAmplitudes ()
	The amplitude values which have been contributing to the last call of prepareAmplitudes.

map< vector< int >, CVector > &	lastLargeNAmplitudes ()
	The leading N amplitude values which have been contributing to the last call of prepareAmplitudes.

void	haveOneLoopAmplitudes (bool f=true)
	True, if the the one-loop amplitudes need to be calculated.

map< vector< int >, CVector > &	lastOneLoopAmplitudes ()
	The one-loop amplitude values which have been contributing to the last call of prepareAmplitudes.

void	lastTreeME2 (double v) const
	The last tree-level matrix element squared.

void	lastLargeNME2 (double v) const
	The last tree-level matrix element squared.

void	lastOneLoopInterference (double v) const
	The last one-loop/tree-level interference.

void	lastOneLoopPoles (pair< double, double > v) const
	The last one-loop/tree-level interference.

void	lastColourCorrelator (const pair< int, int > &ij, double v) const
	The colour correlated matrix element.

void	lastLargeNColourCorrelator (const pair< int, int > &ij, double v) const
	The large-N colour correlated matrix element.

void	lastColourSpinCorrelator (const pair< int, int > &ij, Complex v) const
	The colour/spin correlated matrix element.

void	lastSpinCorrelator (const pair< int, int > &ij, Complex v) const
	The spin correlated matrix element.

void	nLight (unsigned int n)
	Set the number of light flavours to be considered for this process.

void	nLightJetVec (int n)
	Set the elements of the vector that contains the PDG ids of the light flavours, which are contained in the jet particle group.

void	nHeavyJetVec (int n)
	Set the elements of the vector that contains the PDG ids of the heavy flavours, which are contained in the jet particle group.

void	nLightProtonVec (int n)
	Set the elements of the vector that contains the PDG ids of the light flavours, which are contained in the proton particle group.

void	colourBasisDim (size_t d)
	Set the dimensionality of the colour basis for this process.

void	nDimPhasespace (int d)
	Set the number of degrees of freedom required by the phase space generator.

void	nDimAmplitude (int d)
	Set the number of degrees of freedom required by the amplitude.

void	nDimInsertions (int d)
	Set the number of degrees of freedom required by the insertion operators.

vector< double > &	amplitudeRandomNumbers ()
	Access the additional random numbers required by the amplitude.

vector< double > &	insertionRandomNumbers ()
	Access the additional random numbers required by the insertion operator.

map< int, double > &	diagramWeights ()
	Access the diagram weights indexed by diagram id.

set< pair< size_t, size_t > > &	singularLimits ()
	Access the singular limits.

set< pair< size_t, size_t > >::const_iterator &	lastSingularLimit ()
	Access the last matched singular limit.

void	hwStandardModel (Ptr< StandardModel >::tcptr sm)
	Set the Herwig StandardModel object.

void	symmetryFactor (double f) const
	Set the symmetry factor.

void	olpId (int pType, int id)
	Set the OLP process id.

void	lastMatchboxXComb (tStdXCombPtr xc)
	Set the XComb pointer cast to MatchboxXComb.

Static Protected Member Functions inherited from Herwig::MatchboxOLPME
static string &	optionalContractFile ()
	Set an optional contract file name to be used.

static bool &	didStartOLP ()
	Indicate that the OLP has been started.

Static Protected Member Functions inherited from ThePEG::Interfaced
static void	registerRepository (IBPtr)

static void	registerRepository (IBPtr, string newName)

Protected Attributes inherited from ThePEG::LastXCombInfo< StandardXComb >
XCPtr	theLastXComb

Protected Attributes inherited from Herwig::LastMatchboxXCombInfo
MatchboxXCombData *	theLastMatchboxXComb
	The XComb pointer cast to MatchboxXComb.

MatchboxXCombData *	theLastHeadMatchboxXComb
	The head XComb pointer cast to MatchboxXComb.

Detailed Description

OpenLoopsAmplitude implements an interface to OpenLoops.

Author: Johannes Bellm, Simon Platzer

Definition at line 129 of file OpenLoopsAmplitude.h.

Member Function Documentation

◆ clone()

virtual IBPtr Herwig::OpenLoopsAmplitude::clone ( ) const

protectedvirtual

Make a simple clone of this object.

Returns: a pointer to the new object.

Implements ThePEG::InterfacedBase.

◆ doinitrun()

virtual void Herwig::OpenLoopsAmplitude::doinitrun ( )

protectedvirtual

Initialize this object.

Called in the run phase just before a run begins.

Reimplemented from Herwig::MatchboxOLPME.

◆ evalColourCorrelator()

virtual void Herwig::OpenLoopsAmplitude::evalColourCorrelator ( pair< int, int > ij ) const

virtual

Fill in results for the given colour correlator.

Implements Herwig::MatchboxOLPME.

◆ evalSpinColourCorrelator()

virtual void Herwig::OpenLoopsAmplitude::evalSpinColourCorrelator ( pair< int, int > ij ) const

virtual

Fill in results for the given colour/spin correlator.

Implements Herwig::MatchboxOLPME.

◆ evalSubProcess()

void Herwig::OpenLoopsAmplitude::evalSubProcess ( ) const

virtual

Call OLP_EvalSubProcess and fill in the results.

Implements Herwig::MatchboxOLPME.

◆ fullclone()

virtual IBPtr Herwig::OpenLoopsAmplitude::fullclone ( ) const

protectedvirtual

Make a clone of this object, possibly modifying the cloned object to make it sane.

Returns: a pointer to the new object.

Reimplemented from ThePEG::InterfacedBase.

◆ hasFinalStateSymmetry()

virtual bool Herwig::OpenLoopsAmplitude::hasFinalStateSymmetry ( ) const

inlinevirtual

Return true, if this amplitude already includes symmetry factors for identical outgoing particles.

Reimplemented from Herwig::MatchboxAmplitude.

Definition at line 191 of file OpenLoopsAmplitude.h.

◆ hasInitialAverage()

virtual bool Herwig::OpenLoopsAmplitude::hasInitialAverage ( ) const

inlinevirtual

Return true, if this amplitude already includes averaging over incoming parton's quantum numbers.

Reimplemented from Herwig::MatchboxAmplitude.

Definition at line 185 of file OpenLoopsAmplitude.h.

◆ Init()

static void Herwig::OpenLoopsAmplitude::Init ( )

static

The standard Init function used to initialize the interfaces.

Called exactly once for each class by the class description system before the main function starts or when this class is dynamically loaded.

◆ isBDK()

virtual bool Herwig::OpenLoopsAmplitude::isBDK ( ) const

inlinevirtual

Return true, if one loop corrections are given in the conventions of BDK.

Reimplemented from Herwig::MatchboxAmplitude.

Definition at line 153 of file OpenLoopsAmplitude.h.

◆ isCS()

virtual bool Herwig::OpenLoopsAmplitude::isCS ( ) const

inlinevirtual

Return true, if one loop corrections are given in the conventions of the integrated dipoles.

Reimplemented from Herwig::MatchboxAmplitude.

Definition at line 151 of file OpenLoopsAmplitude.h.

◆ isExpanded()

virtual bool Herwig::OpenLoopsAmplitude::isExpanded ( ) const

inlinevirtual

Return true, if one loop corrections are given in the conventions of everything expanded.

Reimplemented from Herwig::MatchboxOLPME.

Definition at line 152 of file OpenLoopsAmplitude.h.

◆ operator=()

OpenLoopsAmplitude & Herwig::OpenLoopsAmplitude::operator= ( const OpenLoopsAmplitude & )

privatedelete

The assignment operator is private and must never be called.

In fact, it should not even be implemented.

◆ persistentInput()

void Herwig::OpenLoopsAmplitude::persistentInput	(	PersistentIStream &	is,
		int	version
	)

Function used to read in object persistently.

Parameters

is	the persistent input stream read from.
version	the version number of the object when written.

◆ persistentOutput()

void Herwig::OpenLoopsAmplitude::persistentOutput ( PersistentOStream & os ) const

Function used to write out object persistently.

Parameters

os	the persistent output stream written to.

◆ spinColourCorrelatedME2()

virtual double Herwig::OpenLoopsAmplitude::spinColourCorrelatedME2	(	pair< int, int >	ij,
		const SpinCorrelationTensor &	c
	)		const

virtual

Return the colour and spin correlated matrix element.

Reimplemented from Herwig::MatchboxOLPME.

◆ startOLP() [1/2]

virtual bool Herwig::OpenLoopsAmplitude::startOLP ( const map< pair< Process, int >, int > & procs )

virtual

Return the value of the dimensional regularization parameter.

Note that renormalization scale dependence is fully restored in DipoleIOperator. Start the one loop provider, if appropriate. This default implementation writes an BLHA 2.0 order file and starts the OLP

Reimplemented from Herwig::MatchboxAmplitude.

◆ startOLP() [2/2]

virtual void Herwig::OpenLoopsAmplitude::startOLP	(	const string &	,
		int &	status
	)

virtual

Start the one loop provider, if appropriate.

Reimplemented from Herwig::MatchboxAmplitude.

Member Data Documentation

◆ colourCorrelatorResults

vector<double> Herwig::OpenLoopsAmplitude::colourCorrelatorResults

mutableprivate

Store colour correlator results.

Definition at line 278 of file OpenLoopsAmplitude.h.

◆ idpair

vector< int > Herwig::OpenLoopsAmplitude::idpair

staticprivate

first is the olp id from herwig, second the answer from openloops

Definition at line 289 of file OpenLoopsAmplitude.h.

◆ OpenLoopsLibs_

string Herwig::OpenLoopsAmplitude::OpenLoopsLibs_

staticprivate

Location of the OpenLoops libraries.

Definition at line 333 of file OpenLoopsAmplitude.h.

◆ OpenLoopsPrefix_

string Herwig::OpenLoopsAmplitude::OpenLoopsPrefix_

staticprivate

Location of the OpenLoops.

Definition at line 338 of file OpenLoopsAmplitude.h.

◆ processmap

map<int , OpenLoopsProcInfo > Herwig::OpenLoopsAmplitude::processmap

private

Helper map to store information in different procs.

Definition at line 296 of file OpenLoopsAmplitude.h.

◆ psp_tolerance

int Herwig::OpenLoopsAmplitude::psp_tolerance

private

parameter to set Phase space tolerance for massiv particles.

Should not be used. Better: set Openloops:Massless 11

Definition at line 321 of file OpenLoopsAmplitude.h.

◆ spinColourCorrelatorResults

vector<double> Herwig::OpenLoopsAmplitude::spinColourCorrelatorResults

mutableprivate

Store spin colour correlator results.

Definition at line 283 of file OpenLoopsAmplitude.h.

◆ theCollierLib

bool Herwig::OpenLoopsAmplitude::theCollierLib =true

private

Use of Collier Lib (arXiv:1604.06792), available since OpenLoops 1.3.0.

Definition at line 314 of file OpenLoopsAmplitude.h.

◆ theDiagonal

bool Herwig::OpenLoopsAmplitude::theDiagonal

private

True, if a diagonal CKM matrix should be assumed.

This ignores the CKM object of the StandardModel.

Definition at line 327 of file OpenLoopsAmplitude.h.

◆ theHiggsEff

bool Herwig::OpenLoopsAmplitude::theHiggsEff

private

Interface for Higgs Effective.

Definition at line 302 of file OpenLoopsAmplitude.h.

◆ use_cms

bool Herwig::OpenLoopsAmplitude::use_cms

private

Complex Mass Scheme.

Definition at line 308 of file OpenLoopsAmplitude.h.

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

OpenLoopsAmplitude.h

Public Member Functions

Clone Methods.

Functions used by the persistent I/O system.

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ clone()

◆ doinitrun()

◆ evalColourCorrelator()

◆ evalSpinColourCorrelator()

◆ evalSubProcess()

◆ fullclone()

◆ hasFinalStateSymmetry()

◆ hasInitialAverage()

◆ Init()

◆ isBDK()

◆ isCS()

◆ isExpanded()

◆ operator=()

◆ persistentInput()

◆ persistentOutput()

◆ spinColourCorrelatedME2()

◆ startOLP() [1/2]

◆ startOLP() [2/2]

Member Data Documentation

◆ colourCorrelatorResults

◆ idpair

◆ OpenLoopsLibs_

◆ OpenLoopsPrefix_

◆ processmap

◆ psp_tolerance

◆ spinColourCorrelatorResults

◆ theCollierLib

◆ theDiagonal

◆ theHiggsEff

◆ use_cms