TrkParametersBase Package

Author

Andre.nosp@m.as.S.nosp@m.alzbu.nosp@m.rger.nosp@m.@cern.nosp@m..ch

Introduction

This package defines all track parameterisations in ATLAS by a set of 3 classes

• template <int DIM, class T, class S> Trk::ParametersT
• template <int DIM, class T, class S> Trk::CurvilinearParametersT
• template <int DIM, class T> Trk::ParametersBase

The template arguments are

• int DIM : the dimension of the parameterisation 5 for standard, 6 for extended with mass
• class T : the type can either by Charged or Neutral
• class S : the surface from Trk::Surface to define the parameterisation frame

All local/global transformations are outsourced to the surfaces.

Note that CurvilinearParameters make best sense on planar surfaces.