FastFit

A fast vertex fitter based on the eigen library and the kalman filter aglorithm

This is mostly a test-project for a faster vertex fitter for the Belle II experiment

Installation

• cmake .
• make
• make install

Installation for the Belle 2 Analysis Software Framework

• Setup basf2
• git clone https://github.com/thomaskeck/FastFit.git
• cd FastFit
• cmake -DCMAKE_INSTALL_PREFIX:PATH=$BELLE2_EXTERNALS_DIR/$BELLE2_EXTERNALS_SUBDIR .
• make
• make install
• cd $BELLE2_LOCAL_DIR
• scons

Other implementations

The Belle and Belle II experiment employ the following vertex fitter implementations

• RAVE https://github.com/newtrino/rave
• KFitter (no online resource)

Further Reading

This work is based on

• http://web-docs.gsi.de/~ikisel/reco/Methods/Billoir_VertexFitting_NIM_A311_1992.pdf (See also Erratum from 1994. There was a sign error.)
• http://web-docs.gsi.de/~ikisel/reco/Methods/Fruehwirth-Kalman-NIMA262-1987.pdf
• http://www-hera-b.desy.de/general/publications/pub_notes/95-013.ps.gz