| Correction: Still "old" TOF hit producer in the release [message #5048 is a reply to message #5035] |
Mon, 17 September 2007 16:24   |
Volker Friese
Messages: 365
Registered: April 2004
Location: GSI CBM
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first-grade participant |
From: *gsi.de
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Contrary to the announcement, the new TOF hit producer is not yet in the repository, thus it is not part of the AUG07 release. See Diego's mail below.
Sorry for the misunderstanding.
Dear Volker,
I have to apologize because the latest version of the HitProducer is
not yet in subversion. There are three reasons for it, while the main
one is my lack of time in the last months, in view of our incoming
HADES-RPC commisioning (strictly speaking, 'half commisioning'):
1) I wanted to implement before-hand your classes for providing
random access to my CBMTofPoint. The previous version of the HitProducer
(done in 'my way') I could have been included in subversion, but I do
not expect any significative change for most of the simulations
currently ongoing, and I did not have the time to optimize the cuts for
secondary production. Only simulations that strongly rely on the shape
of the Tof response could suffer (prominently, fluctuation studies, I
think). Moreover, the secondary production is highly dependent on the
detector structure and chosen energy cuts and engines... that are by no
means optimized taking this very effect into account, so first results
could also be highly misleading.
2) Even if it is hard to believe, the new TofHitProducer provides
just the structure for properly dealing with secondaries. The second
part of the algorithm (as mentioned above) is related to the production
of secondaries themselves. Of those, according to the current studies we
did, delta-ray production and hadronic interactions are the dominant
(and probably the only relevant) secondary processes. Optimization of
the corresponding cuts/engines must be done.
3) I could not compare my results with FOPI data yet, due to some
problems they had up to now.
D. Gonzalez-Diaz
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