ThePEG
1.8.0
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The StdDependentXComb class inherits from the StandardXComb class and represents information on a hard subprocess in dependence of another hard subprocess referred to by the head XComb object. More...
#include <StdDependentXComb.h>
Public Member Functions | |
Standard constructors and destructors. | |
StdDependentXComb (tStdXCombPtr newHead, const PBPair &newPartonBins, tMEPtr newME, const DiagramVector &newDiagrams) | |
Standard constructor. | |
StdDependentXComb () | |
Default constructor. | |
virtual | ~StdDependentXComb () |
Destructor. | |
CrossSection | dSigDR () |
Return the cross section differential in the variables previously supplied. More... | |
void | setIncomingPartons () |
Setup information on incoming partons depending on the information previously supplied through the choice of diagram and incoming momenta in the first two entries of meMomenta(). More... | |
void | remakeIncoming () |
Indicate that information on incoming partons has to be collected. | |
void | setProcess () |
Set the process as selected by the dependent matrix element. | |
virtual tSubProPtr | construct () |
Construct a sub-process object from the information available. | |
void | setPartonBinInstances (Energy2 scale=ZERO) |
Properly setup the PartonBinInstance objects provided a sub process has been constructed using this XComb. | |
Functions used for collecting statistics. | |
virtual const XSecStat & | stats () const |
The statistics object for this XComb. | |
virtual void | select (double weight) |
Select the current event. More... | |
virtual void | accept () |
Accept the current event assuming it was previously selcted. | |
virtual void | reject (double weight=1.0) |
Reject the current event assuming it was previously accepted. More... | |
virtual void | reset () |
Reset statistics. | |
Functions used by the persistent I/O system. | |
void | persistentOutput (PersistentOStream &os) const |
Function used to write out object persistently. More... | |
void | persistentInput (PersistentIStream &is, int version) |
Function used to read in object persistently. More... | |
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StandardXComb (Energy newMaxEnergy, const cPDPair &inc, tEHPtr newEventHandler, tSubHdlPtr newSubProcessHandler, tPExtrPtr newExtractor, tCascHdlPtr newCKKW, const PBPair &newPartonBins, tCutsPtr newCuts, tMEPtr newME, const DiagramVector &newDiagrams, bool mir, tStdXCombPtr newHead=tStdXCombPtr()) | |
Standard constructor. | |
StandardXComb () | |
Default constructor. | |
virtual | ~StandardXComb () |
Destructor. | |
StandardXComb (tMEPtr me, const tPVector &parts, DiagramIndex i) | |
Constructor used by MEBase to create a temporary object to store info. | |
tcSubHdlPtr | subProcessHandler () const |
Return a pointer to the corresponding sub-process handler. More... | |
tMEPtr | matrixElement () const |
The matrix element to be used. | |
tStdXCombPtr | head () const |
Return a pointer to the head XComb this XComb depends on. More... | |
void | head (tStdXCombPtr headXC) |
Set the head XComb pointer. | |
virtual bool | checkInit () |
Try to determine if this subprocess is at all possible. | |
int | nDim () const |
The number of dimensions of the phase space used to generate this process. | |
bool | willPassCuts () const |
Return true, if the current configuration will pass the cuts. | |
virtual CrossSection | dSigDR (const pair< double, double > ll, int nr, const double *r) |
Generate a phase space point from a vector r of nr numbers in the interval ]0,1[ and return the corresponding differential cross section. | |
double | lastPDFWeight () const |
Return the PDF weight used in the last call to dSigDR. | |
CrossSection | lastCrossSection () const |
Return the cross section calculated in the last call to dSigDR. | |
void | reweight (double oldWeight, double newWeight) |
Reweight a selected and accepted event. | |
const DiagramVector & | diagrams () const |
The diagrams used by the matrix element. | |
bool | mirror () const |
True if the TreeDiagram's for this matrix element should in fact be mirrored before used to create an actual sub-rocess. | |
const vector< Lorentz5Momentum > & | meMomenta () const |
Return the momenta of the partons to be used by the matrix element object, in the order specified by the TreeDiagram objects given by the matrix element. | |
tcDiagPtr | lastDiagram () const |
Return the last selected diagram. | |
const cPDVector & | mePartonData () const |
Return the parton types to be used by the matrix element object, in the order specified by the TreeDiagram objects given by the matrix element. | |
DiagramIndex | lastDiagramIndex () const |
Return the index of the last selected diagram. | |
const DVector & | meInfo () const |
Get information saved by the matrix element in the calculation of the cross section to be used later when selecting diagrams and colour flow. | |
void | meInfo (const DVector &info) |
Set information saved by the matrix element in the calculation of the cross section to be used later when selecting diagrams and colour flow. | |
const DVector & | lastRandomNumbers () const |
Return the random numbers used to generate the last phase space point, if the matrix element requested so. | |
double | jacobian () const |
Get the last jacobian obtained when generating the kinematics for the call to dSigHatDR. | |
double | lastME2 () const |
Return the matrix element squared as calculated for the last phase space point. More... | |
CrossSection | lastMECrossSection () const |
Return the partonic cross section as calculated for the last phase space point. More... | |
double | lastMEPDFWeight () const |
Return the PDF weight as calculated for the last phase space point, if the matrix element does supply PDF weights. More... | |
void | persistentOutput (PersistentOStream &os) const |
Function used to write out object persistently. More... | |
void | persistentInput (PersistentIStream &is, int version) |
Function used to read in object persistently. More... | |
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bool | hasMeta (int id) const |
Check for meta information. | |
template<class T > | |
void | meta (int id, T &ref) |
Set meta information. | |
void | eraseMeta (int id) |
Erase meta information. | |
template<class T > | |
T & | meta (int id) const |
Retrieve meta information. | |
XComb (Energy newMaxEnergy, const cPDPair &inc, tEHPtr newEventHandler, tPExtrPtr newExtractor, tCascHdlPtr newCKKW, const PBPair &newPartonBins, tCutsPtr newCuts) | |
Standard constructor. | |
XComb () | |
Default constructor. | |
virtual | ~XComb () |
Destructor. | |
const EventHandler & | eventHandler () const |
Return a reference to the corresponding collision handler. | |
tEHPtr | eventHandlerPtr () const |
Return a pointer to the corresponding collision handler. | |
tPExtrPtr | pExtractor () const |
A pointer to the parton extractor. | |
tCutsPtr | cuts () const |
A pointer to the kinematical cuts. | |
tCascHdlPtr | CKKWHandler () const |
Return a possibly null pointer to a CascadeHandler to be used for CKKW-reweighting. | |
const cPDPair & | particles () const |
The incoming particle types. | |
const cPDPair & | partons () const |
The incoming parton types. | |
const PBPair & | partonBins () const |
Additional information about the incoming partons. | |
Energy | maxEnergy () const |
The maximum cm energy for this process. | |
bool | empty () const |
Returns true if this XComb does not correspond to a proper subprocess generation. More... | |
void | clean () |
Reset all saved data about last generated phasespace point;. | |
void | setPartonBinInstances (PBIPair pbis, Energy2 scale) |
Set information about currently generated partons. | |
void | prepare (const PPair &) |
Prepare this XComb for producing a sub-process. | |
const PPair & | lastParticles () const |
Return the pair of incoming particle instances. | |
const PPair & | lastPartons () const |
Return the pair of incoming parton instances. | |
void | lastPartons (PPair pp) |
Set the pair of incoming parton instances. | |
tSubProPtr | subProcess () const |
Return the SubProcess object corresponding to the last generated sub-process. | |
void | subProcess (tSubProPtr) |
Set the SubProcess object corresponding to the last generated sub-process. | |
const PBIPair & | partonBinInstances () const |
Additional information about the incoming partons. | |
PBIPair & | partonBinInstances () |
Additional information about the incoming partons. | |
tPBIPtr | partonBinInstance (tcPPtr) const |
Return the corresponding parton bin instance for a given extracted parton. | |
Energy2 | lastS () const |
The last generated total energy squared of the incoming particles. | |
void | lastS (Energy2 s) |
Set the last generated total energy squared of the incoming particles. | |
Energy2 | lastSHat () const |
The last generated total energy squared of the incoming prtons. | |
void | lastSHat (Energy2 sh) |
Set the last generated total energy squared of the incoming prtons. | |
double | lastTau () const |
lastSHat()/lastS(). | |
double | lastY () const |
The last generated rapidity of the hard scattering sub-system. | |
void | lastY (double y) |
Set the last generated rapidity of the hard scattering sub-system. | |
double | lastP1 () const |
Log of one over the momentum fraction of the first incoming particle w.r.t. More... | |
double | lastP2 () const |
Log of one over the momentum fraction of the second incoming particle w.r.t. More... | |
void | lastP1P2 (pair< double, double > pp) |
Set log of one over the momentum fraction of the incoming particles w.r.t. More... | |
double | lastL1 () const |
Log of one over the first incoming parton momentum fraction w.r.t. More... | |
double | lastL2 () const |
Log of one over the second incoming parton momentum fraction w.r.t. More... | |
void | lastL1L2 (pair< double, double >) |
Set log of one over the incoming parton momentum fractions w.r.t. More... | |
double | lastX1 () const |
The first incoming parton momentum fraction w.r.t. More... | |
double | lastX2 () const |
The second incoming parton momentum fraction w.r.t. More... | |
void | lastX1X2 (pair< double, double >) |
Set the incoming parton momentum fractions w.r.t. More... | |
double | lastE1 () const |
Return 1-lastX1() to highest possible precision for x ![]() | |
double | lastE2 () const |
Return 1-lastX2() to highest possible precision for x ![]() | |
void | lastE1E2 (pair< double, double >) |
Set one minus the incoming parton momentum fractions w.r.t. More... | |
Energy2 | lastScale () const |
Get the last chosen scale of the hard scattering. | |
void | lastScale (Energy2 Q2) |
Set the last chosen scale of the hard scattering. | |
double | lastAlphaS () const |
Get the ![]() | |
void | lastAlphaS (double a) |
Set the ![]() | |
double | lastAlphaEM () const |
Get the ![]() | |
void | lastAlphaEM (double a) |
Set the ![]() | |
void | persistentOutput (PersistentOStream &os) const |
Function used to write out object persistently. More... | |
void | persistentInput (PersistentIStream &is, int version) |
Function used to read in object persistently. More... | |
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virtual | ~Base () |
The virtual destructor. | |
void | debug () const |
Print out debugging information for this object on std::cerr. More... | |
virtual void | debugme () const |
Print out debugging information for this object on std::cerr. More... | |
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CounterType | referenceCount () const |
Return the reference count. | |
Static Public Member Functions | |
static void | Init () |
Standard Init function used to initialize the interface. | |
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static void | Init () |
Standard Init function used to initialize the interface. | |
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static void | Init () |
Standard Init function used to initialize the interface. | |
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static void | Init () |
The standard Init function used to initialize the interfaces. More... | |
Private Member Functions | |
StdDependentXComb & | operator= (const StdDependentXComb &) |
Private and non-existent assignment operator. | |
Private Attributes | |
bool | resetIncoming |
Wether or not we have to reset the incoming partons. | |
Static Private Attributes | |
static ClassDescription< StdDependentXComb > | initStdDependentXComb |
Describe a concrete class with persistent data. | |
Friends | |
class | MEBase |
MEBase needs to be a friend. More... | |
Additional Inherited Members | |
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typedef MEBase::DiagramVector | DiagramVector |
A vector of DiagramBase objects. More... | |
typedef MEBase::DiagramIndex | DiagramIndex |
A vector of indices. More... | |
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typedef unsigned int | CounterType |
The integer type used for counting. | |
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const unsigned long | uniqueId |
The unique ID. More... | |
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virtual void | newSubProcess (bool group=false) |
Construct the corresponding SubProcess object if it hasn't been done before. | |
vector< Lorentz5Momentum > & | meMomenta () |
Return the momenta of the partons to be used by the matrix element object, in the order specified by the TreeDiagram objects given by the matrix element. | |
DVector & | lastRandomNumbers () |
Access the random numbers used to generate the last phase space point, if the matrix element requested so. | |
cPDVector & | mePartonData () |
Return the parton types to be used by the matrix element object, in the order specified by the TreeDiagram objects given by the matrix element. | |
void | lastDiagramIndex (DiagramIndex i) |
Set the last selected diagram. | |
void | lastPDFWeight (double w) |
Set the PDF weight used in the last call to dSigDR. | |
void | lastCrossSection (CrossSection s) |
Set the cross section calculated in the last call to dSigDR. | |
void | jacobian (double j) |
Set the last jacobian obtained when generating the kinematics for the call to dSigHatDR. | |
void | lastME2 (double v) |
Set the matrix element squared as calculated for the last phase space point. More... | |
void | lastMECrossSection (CrossSection v) |
Set the partonic cross section as calculated for the last phase space point. More... | |
void | lastMEPDFWeight (double v) |
Set the PDF weight as calculated for the last phase space point, if the matrix element does supply PDF weights. More... | |
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void | setPartonBinInfo () |
Set the local parton bin info objects for this XComb. | |
void | createPartonBinInstances () |
Create PartonBinInstance objects for this XComb. | |
void | lastParticles (const PPair &p) |
Set the pair of incoming particle instances. | |
void | resetPartonBinInstances (const PBIPair &newBins) |
Set information about currently generated partons. | |
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ReferenceCounted () | |
Default constructor. | |
ReferenceCounted (const ReferenceCounted &) | |
Copy-constructor. | |
ReferenceCounted & | operator= (const ReferenceCounted &) |
Assignment. | |
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pair< int, int > | partonDims |
The number of dimensions of the phase space used for each of the incoming partons. | |
The StdDependentXComb class inherits from the StandardXComb class and represents information on a hard subprocess in dependence of another hard subprocess referred to by the head XComb object.
Such associations are commonly encountered in higher order corrections carried ouut within the subtraction method. This is indeed the main application of the StdXCombGroup and StdDependentXComb classes.
Definition at line 30 of file StdDependentXComb.h.
CrossSection ThePEG::StdDependentXComb::dSigDR | ( | ) |
void ThePEG::StdDependentXComb::persistentInput | ( | PersistentIStream & | is, |
int | version | ||
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Function used to read in object persistently.
is | the persistent input stream read from. |
version | the version number of the object when written. |
Referenced by reset().
void ThePEG::StdDependentXComb::persistentOutput | ( | PersistentOStream & | os | ) | const |
Function used to write out object persistently.
os | the persistent output stream written to. |
Referenced by reset().
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inlinevirtual |
Reject the current event assuming it was previously accepted.
If weighted events are produced, the weight should be the same as the previous call to select(double).
Reimplemented from ThePEG::StandardXComb.
Definition at line 121 of file StdDependentXComb.h.
References ThePEG::StandardXComb::head().
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inlinevirtual |
Select the current event.
It will later be rejected with a probability given by weight.
Reimplemented from ThePEG::StandardXComb.
Definition at line 109 of file StdDependentXComb.h.
References ThePEG::StandardXComb::head().
void ThePEG::StdDependentXComb::setIncomingPartons | ( | ) |
Setup information on incoming partons depending on the information previously supplied through the choice of diagram and incoming momenta in the first two entries of meMomenta().
Partons are not actually extracted from the incoming particles, though a subprocess detached from the current Event may be created.
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friend |
MEBase needs to be a friend.
Definition at line 33 of file StdDependentXComb.h.