ISF::ActsFatrasSimTool::SingleParticleSimulation< propagator_t, interactions_t, hit_surface_selector_t, decay_t > Struct Template Reference

Single particle simulation with fixed propagator, interactions, and decay. More...

#include <ActsFatrasSimTool.h>

Collaboration diagram for ISF::ActsFatrasSimTool::SingleParticleSimulation< propagator_t, interactions_t, hit_surface_selector_t, decay_t >:

Public Member Functions
	SingleParticleSimulation (propagator_t &&propagator_, std::shared_ptr< const Acts::Logger > localLogger_)
	Alternatively construct the simulator with an external logger. More...
const Acts::Logger &	logger () const
	Provide access to the local logger instance, e.g. for logging macros. More...
template<typename generator_t >
Acts::Result< ActsFatras::SimulationResult >	simulate (const Acts::GeometryContext &geoCtx, const Acts::MagneticFieldContext &magCtx, generator_t &generator, const ActsFatras::Particle &particle) const
	Simulate a single particle without secondaries. More...

Public Attributes
propagator_t	propagator
	How and within which geometry to propagate the particle. More...
decay_t	decay
	Decay module. More...
interactions_t	interactions
	Interaction list containing the simulated interactions. More...
hit_surface_selector_t	selectHitSurface
	Selector for surfaces that should generate hits. More...
double	maxStepSize = 3.0
	parameters for propagator options More...
double	maxStep = 1000
double	maxRungeKuttaStepTrials = 10000
double	pathLimit = 100.0
bool	loopProtection = true
double	loopFraction = 0.5
double	targetTolerance = 0.0001
double	stepSizeCutOff = 0.
double	meanEnergyLoss = true
bool	includeGgradient = true
double	momentumCutOff = 0.
std::shared_ptr< const Acts::Logger >	localLogger = nullptr
	Local logger for debug output. More...

Detailed Description

template<typename propagator_t, typename interactions_t, typename hit_surface_selector_t, typename decay_t>
struct ISF::ActsFatrasSimTool::SingleParticleSimulation< propagator_t, interactions_t, hit_surface_selector_t, decay_t >

Single particle simulation with fixed propagator, interactions, and decay.

Template Parameters

generator_t	random number generator
interactions_t	interaction list
hit_surface_selector_t	selector for hit surfaces
decay_t	decay module

Definition at line 90 of file ActsFatrasSimTool.h.

Constructor & Destructor Documentation

SingleParticleSimulation()

template<typename propagator_t , typename interactions_t , typename hit_surface_selector_t , typename decay_t >

ISF::ActsFatrasSimTool::SingleParticleSimulation< propagator_t, interactions_t, hit_surface_selector_t, decay_t >::SingleParticleSimulation ( propagator_t &&  propagator_, std::shared_ptr< const Acts::Logger >  localLogger_  )

inline

Alternatively construct the simulator with an external logger.

Definition at line 117 of file ActsFatrasSimTool.h.

        : propagator(propagator_), localLogger(localLogger_) {}

Member Function Documentation

logger()

template<typename propagator_t , typename interactions_t , typename hit_surface_selector_t , typename decay_t >

const Acts::Logger& ISF::ActsFatrasSimTool::SingleParticleSimulation< propagator_t, interactions_t, hit_surface_selector_t, decay_t >::logger ( ) const

inline

Provide access to the local logger instance, e.g. for logging macros.

Definition at line 122 of file ActsFatrasSimTool.h.

{ return *localLogger; }

simulate()

template<typename propagator_t , typename interactions_t , typename hit_surface_selector_t , typename decay_t >

template<typename generator_t >

Acts::Result<ActsFatras::SimulationResult> ISF::ActsFatrasSimTool::SingleParticleSimulation< propagator_t, interactions_t, hit_surface_selector_t, decay_t >::simulate ( const Acts::GeometryContext &  geoCtx, const Acts::MagneticFieldContext &  magCtx, generator_t &  generator, const ActsFatras::Particle &  particle  ) const

inline

Simulate a single particle without secondaries.

Template Parameters

generator_t

is the type of the random number generator

Parameters

geoCtx	is the geometry context to access surface geometries
magCtx	is the magnetic field context to access field values
generator	is the random number generator
particle	is the initial particle state

Returns

Simulated particle state, hits, and generated particles.

Definition at line 134 of file ActsFatrasSimTool.h.

                                                  {
      assert(localLogger and "Missing local logger");
      ACTS_VERBOSE("Using ActsFatrasSimTool simulate()");
      // propagator-related additional types
      using SteppingLogger = Acts::detail::SteppingLogger;
      using SimulationActor = ActsFatras::detail::SimulationActor<generator_t, decay_t, interactions_t, hit_surface_selector_t>;
      using Result = typename SimulationActor::result_type;
      using Actions = Acts::ActorList<SteppingLogger, SimulationActor, Acts::EndOfWorldReached>;
      using PropagatorOptions = typename propagator_t::template Options<Actions>;
 
      // Construct per-call options.
      PropagatorOptions options(geoCtx, magCtx);
      // setup the interactor as part of the propagator options
      auto &actor = options.actorList.template get<SimulationActor>();
      actor.generator = &generator;
      actor.decay = decay;
      actor.interactions = interactions;
      actor.selectHitSurface = selectHitSurface;
      actor.initialParticle = particle;
      // use AnyCharge to be able to handle neutral and charged parameters
      Acts::BoundTrackParameters startPoint = Acts::BoundTrackParameters::createCurvilinear(
          particle.fourPosition(), particle.direction(),
          particle.qOverP(), std::nullopt, particle.hypothesis());
      options.pathLimit = pathLimit * Acts::UnitConstants::cm;
      options.loopProtection = loopProtection;
      options.maxSteps = maxStep;
      options.stepping.maxStepSize = maxStepSize * Acts::UnitConstants::m;
 
      auto result = propagator.propagate(startPoint, options);
      if (not result.ok()) {
        return result.error();
      }
      return result.value().template get<Result>();
    }

Member Data Documentation

decay

template<typename propagator_t , typename interactions_t , typename hit_surface_selector_t , typename decay_t >

decay_t ISF::ActsFatrasSimTool::SingleParticleSimulation< propagator_t, interactions_t, hit_surface_selector_t, decay_t >::decay

Decay module.

Definition at line 94 of file ActsFatrasSimTool.h.

includeGgradient

template<typename propagator_t , typename interactions_t , typename hit_surface_selector_t , typename decay_t >

bool ISF::ActsFatrasSimTool::SingleParticleSimulation< propagator_t, interactions_t, hit_surface_selector_t, decay_t >::includeGgradient = true

Definition at line 110 of file ActsFatrasSimTool.h.

interactions

template<typename propagator_t , typename interactions_t , typename hit_surface_selector_t , typename decay_t >

interactions_t ISF::ActsFatrasSimTool::SingleParticleSimulation< propagator_t, interactions_t, hit_surface_selector_t, decay_t >::interactions

Interaction list containing the simulated interactions.

Definition at line 96 of file ActsFatrasSimTool.h.

localLogger

template<typename propagator_t , typename interactions_t , typename hit_surface_selector_t , typename decay_t >

std::shared_ptr<const Acts::Logger> ISF::ActsFatrasSimTool::SingleParticleSimulation< propagator_t, interactions_t, hit_surface_selector_t, decay_t >::localLogger = nullptr

Local logger for debug output.

Definition at line 114 of file ActsFatrasSimTool.h.

loopFraction

template<typename propagator_t , typename interactions_t , typename hit_surface_selector_t , typename decay_t >

double ISF::ActsFatrasSimTool::SingleParticleSimulation< propagator_t, interactions_t, hit_surface_selector_t, decay_t >::loopFraction = 0.5

Definition at line 105 of file ActsFatrasSimTool.h.

loopProtection

template<typename propagator_t , typename interactions_t , typename hit_surface_selector_t , typename decay_t >

bool ISF::ActsFatrasSimTool::SingleParticleSimulation< propagator_t, interactions_t, hit_surface_selector_t, decay_t >::loopProtection = true

Definition at line 104 of file ActsFatrasSimTool.h.

maxRungeKuttaStepTrials

template<typename propagator_t , typename interactions_t , typename hit_surface_selector_t , typename decay_t >

double ISF::ActsFatrasSimTool::SingleParticleSimulation< propagator_t, interactions_t, hit_surface_selector_t, decay_t >::maxRungeKuttaStepTrials = 10000

Definition at line 102 of file ActsFatrasSimTool.h.

maxStep

template<typename propagator_t , typename interactions_t , typename hit_surface_selector_t , typename decay_t >

double ISF::ActsFatrasSimTool::SingleParticleSimulation< propagator_t, interactions_t, hit_surface_selector_t, decay_t >::maxStep = 1000

Definition at line 101 of file ActsFatrasSimTool.h.

maxStepSize

template<typename propagator_t , typename interactions_t , typename hit_surface_selector_t , typename decay_t >

double ISF::ActsFatrasSimTool::SingleParticleSimulation< propagator_t, interactions_t, hit_surface_selector_t, decay_t >::maxStepSize = 3.0

parameters for propagator options

Definition at line 100 of file ActsFatrasSimTool.h.

meanEnergyLoss

template<typename propagator_t , typename interactions_t , typename hit_surface_selector_t , typename decay_t >

double ISF::ActsFatrasSimTool::SingleParticleSimulation< propagator_t, interactions_t, hit_surface_selector_t, decay_t >::meanEnergyLoss = true

Definition at line 109 of file ActsFatrasSimTool.h.

momentumCutOff

template<typename propagator_t , typename interactions_t , typename hit_surface_selector_t , typename decay_t >

double ISF::ActsFatrasSimTool::SingleParticleSimulation< propagator_t, interactions_t, hit_surface_selector_t, decay_t >::momentumCutOff = 0.

Definition at line 111 of file ActsFatrasSimTool.h.

pathLimit

template<typename propagator_t , typename interactions_t , typename hit_surface_selector_t , typename decay_t >

double ISF::ActsFatrasSimTool::SingleParticleSimulation< propagator_t, interactions_t, hit_surface_selector_t, decay_t >::pathLimit = 100.0

Definition at line 103 of file ActsFatrasSimTool.h.

propagator

template<typename propagator_t , typename interactions_t , typename hit_surface_selector_t , typename decay_t >

propagator_t ISF::ActsFatrasSimTool::SingleParticleSimulation< propagator_t, interactions_t, hit_surface_selector_t, decay_t >::propagator

How and within which geometry to propagate the particle.

Definition at line 92 of file ActsFatrasSimTool.h.

selectHitSurface

template<typename propagator_t , typename interactions_t , typename hit_surface_selector_t , typename decay_t >

hit_surface_selector_t ISF::ActsFatrasSimTool::SingleParticleSimulation< propagator_t, interactions_t, hit_surface_selector_t, decay_t >::selectHitSurface

Selector for surfaces that should generate hits.

Definition at line 98 of file ActsFatrasSimTool.h.

stepSizeCutOff

template<typename propagator_t , typename interactions_t , typename hit_surface_selector_t , typename decay_t >

double ISF::ActsFatrasSimTool::SingleParticleSimulation< propagator_t, interactions_t, hit_surface_selector_t, decay_t >::stepSizeCutOff = 0.

Definition at line 107 of file ActsFatrasSimTool.h.

targetTolerance

template<typename propagator_t , typename interactions_t , typename hit_surface_selector_t , typename decay_t >

double ISF::ActsFatrasSimTool::SingleParticleSimulation< propagator_t, interactions_t, hit_surface_selector_t, decay_t >::targetTolerance = 0.0001

Definition at line 106 of file ActsFatrasSimTool.h.

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

• ActsFatrasSimTool.h