Acts::ImpactParametersAndSigma Struct Reference

Impact parameters and their uncertainties with optional timing. More...

#include <Acts/Vertexing/ImpactPointEstimator.hpp>

Public Attributes
double	d0 = 0.
	Transverse impact parameter.
std::optional< double >	deltaT = std::nullopt
	Time difference at the 2D PCA.
double	sigmaD0 = 0.
	Uncertainty on transverse impact parameter.
std::optional< double >	sigmaDeltaT = std::nullopt
	Uncertainty on time difference.
double	sigmaZ0 = 0.
	Uncertainty on longitudinal impact parameter.
double	z0 = 0.
	Longitudinal impact parameter.

Detailed Description

Impact parameters and their uncertainties with optional timing.