[Clas_lmd] The g11 data with tracking matrices is available

[Amaryan, Moskov]

Dear all,

I fully agree that  email sometimes may give a wrong impression and therefore initiate inadequate response.
In all cases let us please keep civility and if some issues occur that needs to be clarified we can discuss them
during our weekly meeting. After all we should not forget that we have a long way to go together to complete
our program.

Best regards,
Moskov.



On Feb 25, 2015, at 9:36 AM, s.schadmand <s.schadmand at fz-juelich.de<mailto:s.schadmand at fz-juelich.de>> wrote:

Email is sometimes a difficult medium. I have had that experience and was misunderstood where the same lines delivered in person would have been ok.

However, there is no reason for telling someone (bilaterally) to 'shut up' or to insinuate that an insult was intended. Please, let that not happen again.

Regards,
Su.


On Feb 25, 2015, at 15:21, Michael C. Kunkel <mkunkel at jlab.org<mailto:mkunkel at jlab.org>> wrote:

Greetings,

There was no insult there. It was a basic comment that was said to aide
the potential of choosing a person to undertake the task.

BR
MK
----------------------------------------
Michael C. Kunkel, PhD
Forschungszentrum Jülich
Nuclear Physics Institute and Juelich Center for Hadron Physics
Experimental Hadron Structure (IKP-1)
www.fz-juelich.de/ikp<http://www.fz-juelich.de/ikp>

On 2/25/15 1:42 PM, Igor Strakovsky wrote:
Dear Doctor Kunkel,

Can you shut up and stop insulting people

- Igor Strakovsky

On Wed, 25 Feb 2015 11:27:54 +0100, "Michael C. Kunkel"
<mkunkel at jlab.org> wrote:

Greetings,

I would like to comment that a person needs not be experienced in
G11, but rather programming and hbook conversion.


BR
MK
----------------------------------------
Michael C. Kunkel, PhD
Forschungszentrum Jülich
Nuclear Physics Institute and Juelich Center for Hadron Physics
Experimental Hadron Structure (IKP-1)
www.fz-juelich.de/ikp

On 2/25/15 8:37 AM, Sudeep Ghosh wrote:
Greetings to Everyone,

       Finally we have the g11 data available with tracking
matrices at
"/mss/clas/g11a/production/pass1/v1/ntuple/" in ".hbook" format.
We also need to follow instructions below given by Raffaella
before converting it to ".root" and using the PID for event
selection.

       In using this ntuples for the analysis, one should consider
that
the particle selection in the EVNT (SEB) common blocks is rather
loose and additional cuts should be always applied. Listed below
are some of the typical cuts used in the analysis (these are a
reasonable example but adjustment may be needed depending on the
specific analysis) referring to the variable names in the ntuples
and assuming vector indexes start from 1 as it is in fortran.

charged particles:
- dc(i)>0  : ensure track information is available
- stat(i)>0: ensure information from the different detector is
consistent
- may need to cut on m(i) for kaons or on their vertex time
- dc_stat(dc(i))>0 : require time-based tracking; dc_stat(dc(i)) is the
pointer to the tbtr and tber banks for the i-th particle that may be
needed for the kinematic fit

general cuts on incoming photon:
- taggoodhit>0 : at least one good photon in the tagger
- abs(dt_st_tag(1))<1. : difference between start counter and tagger
time
for the best matching photon is less than 1 ns.

     To implement these, we need assistance from someone who has the
experience of working on G11.

Best regards,

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Igor Strakovsky, SAID CNS The George Washington University
Tel: 703-726-8344(NV),202-994-4742(FB),Skype: igors1945_2
Fax: 202-994-3001(FB),Emails: igor at va.gwu.edu, igor at jlab.org

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Prof. Moskov Amaryan
Department of Physics
Old Dominion University
4600 Elkhorn Avenue
Norfolk, VA 23529

phone:757-683-4614



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