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Re: reconstruction particles [message #1513 is a reply to message #1503] Fri, 20 June 2008 04:01 Go to previous message
Messages: 233
Registered: January 2004
Location: DESY, Hamburg

there has been a fair amount of developments in reconstruction code recently. So please use the latest ilcsoft release v01-03-05. With this release you also get a package called StandardConfig that has a configuration file stdreco.xml.
Please download the current HEAD version of this package:

If you use this steering file, you will get to output files - one complete file with all simulated, digitized and reconstructed objects and a much smaller 'DST file which is what you probably should use for your analysis.

There is a lot of documentation avaialable online at that you should broiwse to get some overview on the tools.

Here are some quick answers to your questions:

1.ReconstructedParticle::getMomentum() and econstructedParticle::getEnergy() give you the 4-momentum of the reconstructed particles - taken from the track for charged particles.

2. Sim...Hit::getPposition() returns the position in x,y,z in mm

3. see 1.

4. the PandoraPFO collection has all reconstructed particles as found by Pandora. To get the W+W- candidates you need to look at the Jet collections - for ttbar you probably want
'FTFinal_6Jets'. Details depend on your analyis.

5. see 1.

Details of the LCIO event data model are described in the online documentation:

This should get you stareted.


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