class Rivet::PrimaryParticles

Rivet::PrimaryParticles #

Project out primary particles according to definition. More…

#include <PrimaryParticles.hh>

Inherits from Rivet::ParticleFinder, Rivet::Projection, Rivet::ProjectionApplier

Inherited by Rivet::ALICE::PrimaryParticles

Public Types ##

Public Functions ##

Protected Functions ##

Additional inherited members ##

Public Functions inherited from Rivet::ParticleFinder

Public Functions inherited from Rivet::Projection

Protected Functions inherited from Rivet::Projection

Friends inherited from Rivet::Projection

Public Functions inherited from Rivet::ProjectionApplier

Detailed Description ##

class Rivet::PrimaryParticles;

Project out primary particles according to definition.

Author: Christian Holm Christensen cholm@nbi.dk

A Rivet projection that mimics an experimental primary partcile definition by projecting out according to particle ID. The projection can be further specialized to accomodate specific experimental definitions.

Public Types Documentation ##

typedef entity_type ##

typedef Particle Rivet::ParticleFinder::entity_type;

typedef collection_type ##

typedef Particles Rivet::ParticleFinder::collection_type;

Public Functions Documentation ##

function clone ##

virtual unique_ptr< Projection > clone() const =0

Clone on the heap.

Reimplements: Rivet::Beam::clone

Reimplemented by: Rivet::ALICE::PrimaryParticles::clone

function size ##

inline size_t size() const

Count the final-state particles.

function size ##

inline size_t size(
    const Cut & c
) const

Count the final-state particles after a Cut is applied.

function size ##

inline size_t size(
    const ParticleSelector & s
) const

Count the final-state particles after a selection functor is applied.

function empty ##

inline bool empty() const

Is this final state empty?

function empty ##

inline bool empty(
    const Cut & c
) const

Is this final state empty after a Cut is applied?

function empty ##

inline bool empty(
    const ParticleSelector & s
) const

Is this final state empty after a selection functor is applied?

function particles ##

inline virtual const Particles & particles() const

Get the particles in no particular order, with no cuts.

function particles ##

inline Particles particles(
    const Cut & c
) const

Get the particles with selection cuts.

Note: Returns a copy rather than a reference, due to the cuts.

function particles ##

inline Particles particles(
    const ParticleSelector & selector
) const

Get the particles with selection cuts via a functor.

Note: Returns a copy rather than a reference, due to the cuts.

function particles ##

inline Particles particles(
    const ParticleSorter & sorter,
    const Cut & c =Cuts::open()
) const

Note: Returns a copy rather than a reference, due to cuts and sorting.

Get the particles, ordered by supplied sorting function object

function particles ##

inline Particles particles(
    const Cut & c,
    const ParticleSorter & sorter
) const

Note: Returns a copy rather than a reference, due to cuts and sorting.

Get the particles, ordered by supplied sorting function object

function particles ##

inline Particles particles(
    const ParticleSelector & selector,
    const ParticleSorter & sorter
) const

Note: Returns a copy rather than a reference, due to cuts and sorting.

Get the particles, ordered by a sorting functor and filtered by a selection functor

function particles ##

inline Particles particles(
    const ParticleSorter & sorter,
    const ParticleSelector & selector
) const

Note: Returns a copy rather than a reference, due to cuts and sorting.

Get the particles, ordered by a sorting functor and filtered by a selection functor

function rawParticles ##

inline Particles rawParticles() const

Note: Raw particles are the final-state constituents, as opposed to potentially composite particles returned as the finder’s particles()

Get the raw particles in no particular order, with no cuts

function particlesByPt ##

inline Particles particlesByPt(
    const Cut & c =Cuts::open()
) const

Get the particles, ordered by decreasing ( p_T ) and with optional cuts

This is a very common use-case, so is available as syntatic sugar for particles(c, cmpMomByPt).

function particlesByPt ##

inline Particles particlesByPt(
    const ParticleSelector & selector
) const

Get the particles, ordered by decreasing ( p_T ) and with optional cuts

This is a very common use-case, so is available as syntatic sugar for particles(f, cmpMomByPt).

function particlesByPt ##

inline Particles particlesByPt(
    double ptmin
) const

Get the particles, ordered by decreasing ( p_T ) and with a cut on minimum ( p_T )

This is a very common use-case, so is available as syntatic sugar for particles(Cuts::pT >= ptmin, cmpMomByPt).

function entities ##

inline const collection_type & entities() const

Template-usable interface common to JetAlg.

function name ##

inline virtual std::string name() const

Get the name of the projection.

Reimplements: Rivet::ProjectionApplier::name

function valid ##

inline bool valid() const

Get the state of the projetion.

function failed ##

inline bool failed() const

Get the state of the projetion.

function before ##

bool before(
    const Projection & p
) const

Determine whether this object should be ordered before the object p given as argument. If p is of a different class than this, the before() function of the corresponding type_info objects is used. Otherwise, if the objects are of the same class, the virtual compare(const Projection &) will be returned.

function beamPairs ##

virtual const std::set< PdgIdPair > beamPairs() const

Todo: Remove the beam constraints system from projections.

Return the allowed beam pairs on which this projection can operate, not including recursion. Derived classes should ensure that all contained projections are registered in the _projections set for the beam constraint chaining to work.

function addPdgIdPair ##

inline Projection & addPdgIdPair(
    PdgId beam1,
    PdgId beam2
)

Todo: This deserves a better name!

Add a colliding beam pair.

function getProjections ##

inline std::set< ConstProjectionPtr > getProjections() const

Get the contained projections, including recursion.

function hasProjection ##

inline bool hasProjection(
    const std::string & name
) const

Does this applier have a projection registered under the name name?

function getProjection ##

template <typename PROJ >
inline const PROJ & getProjection(
    const std::string & name
) const

Todo: Add SFINAE to require that PROJ inherit from Projection

Get the named projection, specifying return type via a template argument.

function getProjection ##

inline const Projection & getProjection(
    const std::string & name
) const

Get the named projection (non-templated, so returns as a reference to a Projection base class).

function get ##

template <typename PROJ >
inline const PROJ & get(
    const std::string & name
) const

Todo: Add SFINAE to require that PROJ inherit from Projection

Get the named projection, specifying return type via a template argument (user-facing alias).

function applyProjection ##

template <typename PROJ  =Projection>
inline std::enable_if_t< std::is_base_of< Projection, PROJ >::value, const PROJ & > applyProjection(
    const Event & evt,
    const Projection & proj
) const

Deprecated:

Prefer the simpler apply<> form

Apply the supplied projection on event evt.

function applyProjection ##

template <typename PROJ  =Projection>
inline std::enable_if_t< std::is_base_of< Projection, PROJ >::value, const PROJ & > applyProjection(
    const Event & evt,
    const PROJ & proj
) const

Deprecated:

Prefer the simpler apply<> form

Apply the supplied projection on event evt.

function applyProjection ##

template <typename PROJ  =Projection>
inline std::enable_if_t< std::is_base_of< Projection, PROJ >::value, const PROJ & > applyProjection(
    const Event & evt,
    const std::string & name
) const

Deprecated:

Prefer the simpler apply<> form

Apply the named projection on event evt.

function apply ##

template <typename PROJ  =Projection>
inline std::enable_if_t< std::is_base_of< Projection, PROJ >::value, const PROJ & > apply(
    const Event & evt,
    const Projection & proj
) const

Apply the supplied projection on event evt (user-facing alias).

function apply ##

template <typename PROJ  =Projection>
inline std::enable_if_t< std::is_base_of< Projection, PROJ >::value, const PROJ & > apply(
    const Event & evt,
    const PROJ & proj
) const

Apply the supplied projection on event evt (user-facing alias).

function apply ##

template <typename PROJ  =Projection>
inline std::enable_if_t< std::is_base_of< Projection, PROJ >::value, const PROJ & > apply(
    const Event & evt,
    const std::string & name
) const

Apply the supplied projection on event evt (user-facing alias).

function apply ##

template <typename PROJ  =Projection>
inline std::enable_if_t< std::is_base_of< Projection, PROJ >::value, const PROJ & > apply(
    const std::string & name,
    const Event & evt
) const

Apply the supplied projection on event evt (convenience arg-reordering alias).

function markAsOwned ##

inline void markAsOwned() const

Mark this object as owned by a proj-handler.

function PrimaryParticles ##

inline PrimaryParticles(
    std::initializer_list< int > pids,
    const Cut & c =Cuts::open()
)

Parameters:

• pids List of PDG IDs which are considered primary
• c Normal particle cuts

Constructor

function DEFAULT_RIVET_PROJ_CLONE ##

DEFAULT_RIVET_PROJ_CLONE(
    PrimaryParticles 
)

function PrimaryParticles ##

inline PrimaryParticles(
    const PrimaryParticles & other
)

Copy constructor.

function compare ##

inline virtual CmpState compare(
    const Projection & p
) const

Parameters:

• p Projection to compare to.

Return: Equivalent if the projection p is of the same type as this, the cuts are equal, and the list of PDG IDs is the same.

Reimplements: Rivet::ParticleFinder::compare

Reimplemented by: Rivet::ALICE::PrimaryParticles::compare

Compare to another projection

Protected Functions Documentation ##

function getLog ##

inline Log & getLog() const

Get a Log object based on the getName() property of the calling projection object.

function setName ##

inline void setName(
    const std::string & name
)

Used by derived classes to set their name.

function fail ##

inline void fail()

Set the projection in an unvalid state.

function mkNamedPCmp ##

Cmp< Projection > mkNamedPCmp(
    const Projection & otherparent,
    const std::string & pname
) const

Shortcut to make a named Cmp comparison with the *this object automatically passed as one of the parent projections.

function mkPCmp ##

Cmp< Projection > mkPCmp(
    const Projection & otherparent,
    const std::string & pname
) const

Note: Alias for mkNamedPCmp

Shortcut to make a named Cmp comparison with the *this object automatically passed as one of the parent projections.

function getProjHandler ##

inline ProjectionHandler & getProjHandler() const

Get a reference to the ProjectionHandler for this thread.

function isPrimary ##

virtual bool isPrimary(
    ConstGenParticlePtr p
) const

function isIgnored ##

virtual bool isIgnored(
    ConstGenParticlePtr p
) const

Check if the particle should be ignored, via its status code.

function isPrimaryPID ##

virtual bool isPrimaryPID(
    ConstGenParticlePtr p
) const

Parameters:

• p Particle to investigate.

Return: true if the particle PDG ID is in the list of known primary PDG IDs.

Reimplemented by: Rivet::ALICE::PrimaryParticles::isPrimaryPID

Check PDG ID of particle p is in the list of accepted primaries

function hasDecayed ##

virtual bool hasDecayed(
    ConstGenParticlePtr p
) const

Parameters:

• p Pointer to HepMC particle

Return: true if the particle has decayed according to the status flag of the particle p

Check if a particle p has decayed.

function isBeam ##

virtual bool isBeam(
    ConstGenParticlePtr p
) const

Parameters:

• p Particle to check

Return: true if the particle p is a (remnant) beam particle

Check if a particle is a beam (remnant) particle.

function ancestor ##

ConstGenParticlePtr ancestor(
    ConstGenParticlePtr p
) const

Parameters:

• p Particle for which to get the immediate ancestor

Return: Pointer to immediate ancestor or null if there’s no ancestor.

Get the immediate ancestor of a particle.

function ancestor ##

ConstGenParticlePtr ancestor(
    ConstGenParticlePtr p,
    bool 
) const

Parameters:

• p Particle for which to get the immediate ancestor

Return: Pointer to immediate ancestor or null if there’s no ancestor.

Get the immediate ancestor of a particle, which is not an ignored particle.

function declareProjection ##

template <typename PROJ >
inline const PROJ & declareProjection(
    const PROJ & proj,
    const std::string & name
)

Register a contained projection.

Todo: Add SFINAE to require that PROJ inherit from Projection

The type of the argument is used to instantiate a new projection internally: this new object is applied to events rather than the argument object. Hence you are advised to only use locally-scoped Projection objects in your Projection and Analysis constructors, and to avoid polymorphism (e.g. handling ConcreteProjection via a pointer or reference to type Projection) since this will screw up the internal type management.

function declare ##

template <typename PROJ >
inline const PROJ & declare(
    const PROJ & proj,
    const std::string & name
)

Register a contained projection (user-facing version)

Todo: Add SFINAE to require that PROJ inherit from Projection

function declare ##

template <typename PROJ >
inline const PROJ & declare(
    const std::string & name,
    const PROJ & proj
)

Register a contained projection (user-facing, arg-reordered version)

Todo: Add SFINAE to require that PROJ inherit from Projection

function project ##

virtual void project(
    const Event & e
)

Parameters:

• e Event to project from

Reimplements: Rivet::ParticleFinder::project

Do the projection.

Updated on 2022-08-07 at 20:17:17 +0100