Re: [ROOT] Event-Shape-Variables

From: Rene Brun (Rene.Brun@cern.ch)
Date: Mon Nov 12 2001 - 21:45:55 MET


Hi Michael,

In our example of Applications page, we have a reference to URL:
      ftp://ftp.slac.stanford.edu/groups/lcd/Physics_tools/
The README file says:
Overview
--------
Physics analysis needs some of the standard utilities like JetFinders
and event shape analyzers. We have translated the Jade, Jade E, and
Durham jet algorithms and the JETSET thrust & event shape routines
to C++/Root.

This directory contains source files, and Makefile to make two shared 
libs, libJetFind.so and libEventShape.so, containing JetFinders and 
event shape analyzers, respectively. 
To create the shared libs, modify Makefile (the default Makefile is
for SunOS.) by referring to the $ROOTSYS/test/Makefile in your system.

Example Macro
-------------
The directory contains two sample programs, sample_jet.cxx and 
sample_thrust.cxx. These macros use the events generated
by a test program of Event and libEvent.so, in $ROOTSYS/test.

sample_jet.cxx    :: Using the Jet Finder (Jade algorithm, for
                     example) in libJetFinder.so 



sample_thrust.cxx :: Using the event shape analyzers (getting 
                     thrust, major, and minor) in libEventShape.so. 
    


                       Sep 03, 1999  
                       M. Iwasaki  (masako@slac.stanford.edu)


Rene Brun


On Mon, 12 Nov 2001, Michael Bussmann wrote:

> Hi Rooters,
> 
> does anybody know a nice ROOT-implementation of event-shape-variables like
> Thrust and Sphericity using ROOT-Vectors (or similar stuff)?
> 
> Michael
> 



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