ATLAS Offline Software
Namespaces | Variables
GsfConstants.h File Reference
#include <cstddef>
#include <cstdint>
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Namespaces

 GSFConstants
 Collect constants we use in GSF and their meaning in one place.
 

Variables

constexpr int8_t GSFConstants::maxNumberofStateComponents = 12
 Note the Gaussian sum approach as describe e.g in " Optimal Filtering" Anderson and Moore "Track Fitting with non-Gaussan noise" Fruhwirth. More...
 
constexpr int8_t GSFConstants::maxNumberofMatComponents = 6
 Maximum number of Gaussian components for the material effects description. More...
 
constexpr int8_t GSFConstants::polynomialCoefficients = 6
 Number of coefficients for the polynomials, parametrizing the mean,variace, weights of the Gaussian components describing the material effects. More...
 
constexpr int8_t GSFConstants::maxComponentsAfterConvolution
 The maximum size State x Bethe-Heitler components The typical number we use is the max 6x12 = 72 i.e as we try to have the maximum practical precision for the GSF. More...
 
constexpr size_t GSFConstants::alignment = 32
 Alignment used for SIMD operations internally to GSF. More...