[G12] Analysis Note

[Lei Guo]

My understanding was that the generator for the omega measurements at FSU was simply phase space. I think before conclusion was drawn, the measured cross section should at least be put back to the generator. 


Lei Guo
Associate Professor
Physics Department
Florida International University
Miami, FL

email: leguo at fiu.edu <mailto:leguo at fiu.edu> or lguo at jlab.org
Office:305-348-0234

> On Sep 12, 2016, at 10:37 AM, Volker Crede <crede at fsu.edu> wrote:
> 
> Michael and others,
> 
> I will not be able to attend the g12 meeting today because of teaching duties. Zulkaida will contribute and represent FSU. In particular, we are interested in the discussion of the kinematic fitter with Kaons.
> 
> We are also working on our FSU g12 analysis note and as mentioned several times before, we ran into this nasty acceptance problem for the ω channel owing to the (large off-center) target position. The ω cross sections for the forward and backward half of the target differ by almost 15 - 20%. Michael, have you checked your cross section for a similar effect? At the moment, we are unsure how to proceed and how to account for this effect.
> 
> For similar acceptance reasons, we consider our double-pion analysis (for the energy range 1.5 - 3.5 GeV) dead or at least suspended for the moment; the g12-data quality is simply not good enough (compared to g11a, for instance). The g12-data may also not be good enough for the ω Dalitz-plot analysis, which may also affect other Dalitz-plot analyses. However, a conclusion has not been finalized. As Lei suggested, it would be good to compile a list of all analyses (and analysis notes) that would like to move forward. 
> 
> Best wishes,
> 
> 	Volker
> 
> 
> On Sep 12, 2016, at 9:17 AM, Michael C. Kunkel <mkunkel at jlab.org> wrote:
> 
>> Greetings G12,
>> 
>> Among all the other g12 business I emailed last week that I would like to discuss tonight, i.e.
>> 
>> 1) MC tape (see Haruts email to CLAS)
>> 
>> 2) Kinematic fitter with Kaons
>> 
>> I would also like to discuss my analysis note that I has been edited for length and content.
>> 
>> https://www.jlab.org/Hall-B/secure/g12/mkunkel/PAPERS/PI0/Analysis_note.pdf.
>> 
>> 
>> Since we have the urgency to beat Hall-D, can we discuss the note first?
>> 
>> 
>> -- 
>> 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
>> 
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> 
> 
> 
> 
> 
> 
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