Template Struct BoundParametersSmearer

Struct Documentation

template<Acts::BoundIndices... kParameters>
struct ActsFatras::BoundParametersSmearer

Parameter smearer for fast digitisation for bound parameters.

The logic of this smearer is the following:

  • Input is a single simulated ActsFatras::Hit which is wrapped into

  • It returns smeared parameter vector and a covariance matrix

Note

This smearer only supports uncorrelated smearing of parameters

Public Types

using ParSet = Acts::ParameterSet<Acts::BoundIndices, kParameters...>

Public Functions

template<typename generator_t>
Acts::Result<Acts::ParameterSet<Acts::BoundIndices, kParameters...>> operator()(const SmearInput &sInput, generator_t &sRandom, const std::array<SmearFunction<generator_t>, sizeof...(kParameters)> &sFunctions) const

Generic implementation of a smearing meathod for bound parameters.

Return

Smeared bound parameter set wrapped in a Result<…> object

Template Parameters

  • generator_t: The type of the random generator provided

  • kParameters: parameter pack describing the parameters to smear

Parameters

  • sInput: The smearing input struct: surface and simulated hit

  • sRandom: The smearing random number gnerator

  • sFunctions: The smearing functions that are applied