A SubProcess object represents a hard $2\rightarrow n$ sub-process in a collision. More...

#include <SubProcess.h>

Inheritance diagram for ThePEG::SubProcess:

Public Member Functions
	SubProcess (const PPair &newIncoming, tCollPtr newCollision=tCollPtr(), tcEventBasePtr newHandler=tcEventBasePtr(), tSubProPtr newHead=tSubProPtr(), double newGroupWeight=1.0)
	Standard constructor. More...

virtual	~SubProcess ()
	Destructor.

tcEventBasePtr	handler () const
	A pointer to the MEBase object which generated this SubProcess.

tCollPtr	collision () const
	A pointer to the collision to which this sub-process belongs.

const PPair &	incoming () const
	The pair of incoming partons.

const ParticleVector &	intermediates () const
	A reference to the vector of intermediate partons.

const ParticleVector &	outgoing () const
	A reference to the vector of outgoing particles.

template<class InputIterator >
void	setOutgoing (InputIterator, InputIterator)
	Set the vector of outgoing particles.

void	addOutgoing (tPPtr p, bool fixrelations=true)
	Add a particle to the list of outgoing ones. More...

void	changeIncoming (tPPtr pnew, tPPtr pold)
	Change the incoming parton.

template<class InputIterator >
void	setIntermediates (InputIterator, InputIterator)
	Set the vector of intermediate particles.

void	addIntermediate (tPPtr p, bool fixrelations=true)
	Add a particle to the list of intermediate ones. More...

void	removeEntry (tPPtr p)
	Remove a particle entry from this sub-process.

virtual SubProPtr	clone () const
	Return a clone of this sub process.

bool	decayed () const
	True if a perturbative cascade has been applied to this sub process.

void	decayed (bool x)
	Set to true if a perturbative cascade has been applied to this sub process.

tSubProPtr	head () const
	Return the head SubProcess, if this SubProcess object belongs to a SubProcessGroup. More...

void	head (tSubProPtr newHead)
	Set the head SubProcess.

double	groupWeight () const
	If this SubProcess belongs to a SubProcessGroup, return its relative weight w.r.t. More...

void	groupWeight (double w)
	If this SubProcess belongs to a SubProcessGroup, set its relative weight w.r.t. More...

virtual void	transform (const LorentzRotation &)
	Perform a LorentzTransformation of all particles in the sub process.

Energy2	shat () const
	Return the value of the Mandelstam variable $\hat{s}$ in this SubProcess. More...

Energy2	that () const
	Return the value of the Mandelstam variable $\hat{t}$ in this SubProcess. More...

Energy2	uhat () const
	Return the value of the Mandelstam variable $\hat{u}$ in this SubProcess. More...

void	persistentOutput (PersistentOStream &) const
	Standard function for writing to a persistent stream.

void	persistentInput (PersistentIStream &, int)
	Standard function for reading from a persistent stream.

virtual void	debugme () const
	Print out debugging information for this object on std::cerr. More...

virtual void	printMe (ostream &) const
	Put to ostream.

Public Member Functions inherited from ThePEG::Base
virtual	~Base ()
	The virtual destructor.

void	debug () const
	Print out debugging information for this object on std::cerr. More...

Public Member Functions inherited from ThePEG::Pointer::ReferenceCounted
CounterType	referenceCount () const
	Return the reference count.

Static Public Member Functions
static void	Init ()
	Standard Init function. More...

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

Protected Member Functions
virtual void	rebind (const EventTranslationMap &trans)
	Rebind to cloned objects. More...

Protected Member Functions inherited from ThePEG::Pointer::ReferenceCounted
	ReferenceCounted ()
	Default constructor.

	ReferenceCounted (const ReferenceCounted &)
	Copy-constructor.

ReferenceCounted &	operator= (const ReferenceCounted &)
	Assignment.

Private Member Functions
	SubProcess ()
	Default constructor.

SubProcess &	operator= (const SubProcess &)=delete
	Assignment is forbidden.

Private Attributes
tcEventBasePtr	theHandler
	A pointer to the MEBase object which generated this sub-process.

tCollPtr	theCollision
	A pointer to the collision to which this sub-process belongs.

PPair	theIncoming
	The pair of incoming particles.

ParticleVector	theIntermediates
	The vector of intermediate particles,.

ParticleVector	theOutgoing
	The vector of outgoing particles.

bool	isDecayed
	True if a perturbative cascade has been applied to this sub process.

tSubProPtr	theHead
	The head SubProcess, if this SubProcess object belongs to a SubProcessGroup. More...

double	theGroupWeight
	If this SubProcess belongs to a SubProcessGroup, this gives its relative weight w.r.t. More...

Static Private Attributes
static ClassDescription< SubProcess >	initSubProcess
	Describe concrete class with persistent data.

Friends
class	Step
	Most of the Event classes are friends with each other. More...

class	Collision
	Most of the Event classes are friends with each other. More...

class	SubProcessGroup
	Most of the Event classes are friends with each other. More...

struct	ClassTraits< SubProcess >
	The ClassTraits<SubProcess> class must be a friend to be able to use the private default constructor.

Additional Inherited Members
Public Types inherited from ThePEG::Pointer::ReferenceCounted
typedef unsigned int	CounterType
	The integer type used for counting.

Public Attributes inherited from ThePEG::Pointer::ReferenceCounted
const unsigned long	uniqueId
	The unique ID. More...

Detailed Description

A SubProcess object represents a hard $2\rightarrow n$ sub-process in a collision.

It carries information about the incoming and outgoing particles, as well as possible intermediate ones. It also has a pointer to the MEBase object which generated the sub-process.

See also: Event; Particle; SubProcessGroup

Definition at line 33 of file SubProcess.h.

Constructor & Destructor Documentation

◆ SubProcess()

ThePEG::SubProcess::SubProcess	(	const PPair &	newIncoming,
		tCollPtr	newCollision = `tCollPtr()`,
		tcEventBasePtr	newHandler = `tcEventBasePtr()`,
		tSubProPtr	newHead = `tSubProPtr()`,
		double	newGroupWeight = `1.0`
	)

Standard constructor.

Parameters

newIncoming	the two incoming partons.
newCollision	the Collision to which this SubProcess belongs.
newHandler	the MEBase object which generated this SubProcess.

Member Function Documentation

◆ addIntermediate()

void ThePEG::SubProcess::addIntermediate	(	tPPtr	p,
		bool	fixrelations = `true`
	)

Add a particle to the list of intermediate ones.

If fixrelations is true the mother daughter pointers will be set to/from the incoming partons.

Referenced by outgoing().

◆ addOutgoing()

void ThePEG::SubProcess::addOutgoing	(	tPPtr	p,
		bool	fixrelations = `true`
	)

Add a particle to the list of outgoing ones.

If fixrelations is true the mother daughter pointers will be set to/from the incoming partons.

Referenced by outgoing().

◆ debugme()

virtual void ThePEG::SubProcess::debugme ( ) const

virtual

Print out debugging information for this object on std::cerr.

To be called from within a debugger via the debug() function.

Reimplemented from ThePEG::Base.

◆ groupWeight() [1/2]

double ThePEG::SubProcess::groupWeight ( ) const

inline

If this SubProcess belongs to a SubProcessGroup, return its relative weight w.r.t.

the head's weight.

Definition at line 159 of file SubProcess.h.

References theGroupWeight.

◆ groupWeight() [2/2]

void ThePEG::SubProcess::groupWeight ( double w )

inline

If this SubProcess belongs to a SubProcessGroup, set its relative weight w.r.t.

the head's weight.

Definition at line 166 of file SubProcess.h.

References rebind(), theGroupWeight, and transform().

◆ head()

tSubProPtr ThePEG::SubProcess::head ( ) const

inline

Return the head SubProcess, if this SubProcess object belongs to a SubProcessGroup.

Return NULL if head of a SubProcessGroup or not member of a SubProcessGroup at all.

Definition at line 147 of file SubProcess.h.

References theHead.

◆ Init()

static void ThePEG::SubProcess::Init ( )

static

Standard Init function.

See also: Base::Init().

Referenced by uhat().

◆ rebind()

virtual void ThePEG::SubProcess::rebind ( const EventTranslationMap & trans )

protectedvirtual

Rebind to cloned objects.

When a SubProcess is cloned, a shallow copy is done first, then all Particles etc, are cloned, and finally this method is used to see to that the pointers in the cloned SubProcess points to the cloned Particles etc.

Reimplemented in ThePEG::SubProcessGroup.

Referenced by groupWeight().

◆ shat()

Energy2 ThePEG::SubProcess::shat ( ) const

inline

Return the value of the Mandelstam variable $\hat{s}$ in this SubProcess.

It is calculated using the incoming particles.

Definition at line 192 of file SubProcess.h.

References incoming().

◆ that()

Energy2 ThePEG::SubProcess::that ( ) const

inline

Return the value of the Mandelstam variable $\hat{t}$ in this SubProcess.

It is calculated using the first incoming and first outgoing particle.

Definition at line 201 of file SubProcess.h.

References incoming(), and outgoing().

◆ uhat()

Energy2 ThePEG::SubProcess::uhat ( ) const

inline

Return the value of the Mandelstam variable $\hat{u}$ in this SubProcess.

It is calculated using the first incoming and last outgoing particle.

Definition at line 210 of file SubProcess.h.

References incoming(), Init(), outgoing(), persistentInput(), and persistentOutput().

Friends And Related Function Documentation

◆ Collision

friend class Collision

friend

Most of the Event classes are friends with each other.

Definition at line 40 of file SubProcess.h.

◆ Step

friend class Step

friend

Most of the Event classes are friends with each other.

Definition at line 38 of file SubProcess.h.

◆ SubProcessGroup

friend class SubProcessGroup

friend

Most of the Event classes are friends with each other.

Definition at line 42 of file SubProcess.h.

Member Data Documentation

◆ theGroupWeight

double ThePEG::SubProcess::theGroupWeight

private

If this SubProcess belongs to a SubProcessGroup, this gives its relative weight w.r.t.

the head's weight.

Definition at line 276 of file SubProcess.h.

Referenced by groupWeight().

◆ theHead

tSubProPtr ThePEG::SubProcess::theHead

private

The head SubProcess, if this SubProcess object belongs to a SubProcessGroup.

NULL if head of a SubProcessGroup or not member of a SubProcessGroup at all.

Definition at line 269 of file SubProcess.h.

Referenced by head().

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

SubProcess.h

Public Member Functions

Static Public Member Functions

Protected Member Functions

Private Member Functions

Private Attributes

Static Private Attributes

Friends

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ SubProcess()

Member Function Documentation

◆ addIntermediate()

◆ addOutgoing()

◆ debugme()

◆ groupWeight() [1/2]

◆ groupWeight() [2/2]

◆ head()

◆ Init()

◆ rebind()

◆ shat()

◆ that()

◆ uhat()

Friends And Related Function Documentation

◆ Collision

◆ Step

◆ SubProcessGroup

Member Data Documentation

◆ theGroupWeight

◆ theHead