Collection of configuration parameters for the triplet seed finder. More...

#include <Acts/Seeding2/TripletSeedFinder.hpp>

Inheritance diagram for Acts::TripletSeedFinder::Config:

Public Attributes
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

Collection of configuration parameters for the triplet seed finder.

This includes triplet cuts, steering switches, and assumptions about the space points.

Member Data Documentation

◆ helixCutTolerance

float Acts::TripletSeedFinder::Config::helixCutTolerance = 1

Parameter which can loosen the tolerance of the track seed to form a helix.

This is useful for e.g. misaligned seeding.

◆ impactMax

float Acts::TripletSeedFinder::Config::impactMax = 20 * UnitConstants::mm

Maximum value of impact parameter estimation of the seed candidates.

◆ minPt

float Acts::TripletSeedFinder::Config::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.

Check the documentation for more information https://acts.readthedocs.io/en/latest/core/reconstruction/pattern_recognition/seeding.html

◆ radLengthPerSeed

float Acts::TripletSeedFinder::Config::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%.

◆ sigmaScattering

float Acts::TripletSeedFinder::Config::sigmaScattering = 5

Number of sigmas of scattering angle to be considered in the minimum pT scattering term.

◆ sortedByCotTheta

bool Acts::TripletSeedFinder::Config::sortedByCotTheta = true

Whether the input doublets are sorted by cotTheta.

◆ toleranceParam

float Acts::TripletSeedFinder::Config::toleranceParam = 1.1 * UnitConstants::mm

Tolerance parameter used to check the compatibility of space-point coordinates in xyz.

This is only used in a detector specific check for strip modules

◆ useStripInfo

bool Acts::TripletSeedFinder::Config::useStripInfo = false

Delegates for accessors to detailed information on double strip measurement that produced the space point.

This is mainly referring to space points produced when combining measurement from strips on back-to-back modules. Enables setting of the following delegates.

Public Attributes