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Lhetrack is now "old stuff" ? [message #10194]

Fri, 12 February 2010 14:25

Ronald Kunne
Messages: 32
Registered: October 2009

continuous participant

From: *in2p3.fr

I saw here
https://subversion.gsi.de/trac/fairroot/browser/pandaroot/trunk/tutorial s
that the pandaroot/trunk/tutorials/lhetrack directory is now considered "old stuff"

As I am using these series of routines to study pbar p -> e+ e- and pbar p -> pi+ pi- I wonder what is now the official equivalent to do tracking, helix and Kalman fitting?

I have found pandaroot/trunk/macro/tpc Is this what I am supposed to use?

To be honest, what I am currently using is still version 7367, dating from november 2009.

[Updated on: Fri, 12 February 2010 14:34]

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Re: Lhetrack is now "old stuff" ? [message #10195 is a reply to message #10194]

Fri, 12 February 2010 15:09

StefanoSpataro
Messages: 2736
Registered: June 2005
Location: Torino

first-grade participant

From: *to.infn.it

The "tutorial" is old and not maintened anymore, lhetrack is still valid.
If you want to use it (i.e. track finding, helix fit + kalman), you can use the macros in macro/pid, before the new tutorial will be ready.
Meanwhile the code had a lot of changes, I would strongly suggest to move to jan10 external packages and to the latest pandaroot trunk.

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Re: Lhetrack is now "old stuff" ? [message #10198 is a reply to message #10195]

Fri, 12 February 2010 16:40

Jens Sören Lange
Messages: 193
Registered: June 2005

first-grade participant

From: *physik.uni-giessen.de

Hi Ronald,
Stefano is right.
The macros in trunk/macro/pid work and are using lhetrack for track finding and track fitting.
Even more, they are using the kalman filter for track fitting.
The macros in trunk/tutorials/charmonium also work now, but basically are just copied from macro/pid (with minor changes).
In addition, in tutorials/charmonium you find run_pid_tpccombi.C for filling the rho microcandidates and run_ana_tpccombi.C for showing how to loop over microcandidates and plot invariant mass (and both macros also for sttcombi).
Note: the macros in macro/run also work and show how to do many things (so they are nice for learning) but they are not filling rho microcandidates which you need for analysis (kinematic fit etc.)
cheers, Soeren

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