Derived configuration for the triplet seed finder using a magnetic field. More...

#include <Acts/Seeding2/TripletSeedFinder.hpp>

Inheritance diagram for Acts::TripletSeedFinder::DerivedConfig:

Collaboration diagram for Acts::TripletSeedFinder::DerivedConfig:

Public Member Functions
	DerivedConfig (const Config &config, float bFieldInZ)
	Constructor for derived configuration with magnetic field.

Public Attributes
float	bFieldInZ = std::numeric_limits<float>::quiet_NaN()
	Magnetic field strength in Z direction.
float	highland = std::numeric_limits<float>::quiet_NaN()
	Highland term for multiple scattering calculations.
float	minHelixDiameter2 = std::numeric_limits<float>::quiet_NaN()
	Minimum squared helix diameter for track candidates.
float	multipleScattering2 = std::numeric_limits<float>::quiet_NaN()
	Squared multiple scattering angle for uncertainty calculations.
float	pTPerHelixRadius = std::numeric_limits<float>::quiet_NaN()
	Conversion factor from pT to helix radius in magnetic field.
float	sigmapT2perRadius = std::numeric_limits<float>::quiet_NaN()
	Squared pT uncertainty per unit radius for helix fitting.
Public Attributes inherited from Acts::TripletSeedFinder::Config
float	helixCutTolerance = 1
	Parameter which can loosen the tolerance of the track seed to form a helix.
float	impactMax = 20 * UnitConstants::mm
	Maximum value of impact parameter estimation of the seed candidates.
float	minPt = 400 * UnitConstants::MeV
	Minimum transverse momentum (pT) used to check the r-z slope compatibility of triplets with maximum multiple scattering effect (produced by the minimum allowed pT particle) + a certain uncertainty term.
float	radLengthPerSeed = 0.05
	Term that accounts for the thickness of scattering medium in radiation lengths in the Lynch & Dahl correction to the Highland equation default is 5%.
float	sigmaScattering = 5
	Number of sigmas of scattering angle to be considered in the minimum pT scattering term.
bool	sortedByCotTheta = true
	Whether the input doublets are sorted by cotTheta.
float	toleranceParam = 1.1 * UnitConstants::mm
	Tolerance parameter used to check the compatibility of space-point coordinates in xyz.
bool	useStripInfo = false
	Delegates for accessors to detailed information on double strip measurement that produced the space point.

Detailed Description

Derived configuration for the triplet seed finder using a magnetic field.

Constructor & Destructor Documentation

◆ DerivedConfig()

Acts::TripletSeedFinder::DerivedConfig::DerivedConfig	(	const Config &	config,
		float	bFieldInZ )

Constructor for derived configuration with magnetic field.

Parameters

config	Base configuration parameters to inherit
bFieldInZ	Magnetic field strength in Z direction [T]

Member Data Documentation

◆ bFieldInZ

float Acts::TripletSeedFinder::DerivedConfig::bFieldInZ = std::numeric_limits<float>::quiet_NaN()

Magnetic field strength in Z direction.

◆ highland

float Acts::TripletSeedFinder::DerivedConfig::highland = std::numeric_limits<float>::quiet_NaN()

Highland term for multiple scattering calculations.

◆ minHelixDiameter2

float Acts::TripletSeedFinder::DerivedConfig::minHelixDiameter2 = std::numeric_limits<float>::quiet_NaN()

Minimum squared helix diameter for track candidates.

◆ multipleScattering2

float Acts::TripletSeedFinder::DerivedConfig::multipleScattering2 = std::numeric_limits<float>::quiet_NaN()

Squared multiple scattering angle for uncertainty calculations.

◆ pTPerHelixRadius

float Acts::TripletSeedFinder::DerivedConfig::pTPerHelixRadius = std::numeric_limits<float>::quiet_NaN()

Conversion factor from pT to helix radius in magnetic field.

◆ sigmapT2perRadius

float Acts::TripletSeedFinder::DerivedConfig::sigmapT2perRadius = std::numeric_limits<float>::quiet_NaN()

Squared pT uncertainty per unit radius for helix fitting.

Public Member Functions

Public Attributes