[Clas_lmd] The g11 data with tracking matrices is available

[Michael C. Kunkel]

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

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