Introduction

This package contains vertex fitting engine and some service routines of VKalVrt. Package is independent on ATLAS software and on any external library. External magnetic field and propagator may be plugged in. Neutral and charged tracks may be mixed together.

Class Overview

Package does vertex fitting with constraints. Tracks are transported to vertex position and linearized there.

Some description of algorithms may be found in http://kostyuk.home.cern.ch/kostyuk/vertex/ and references inside. Software related issues may be viewed in https://twiki.cern.ch/twiki/bin/view/Atlas/VKalVrt .