[G12] G12 Kinematic Fitter for pions

Michael C. Kunkel mkunkel at jlab.org
Sat Dec 19 01:40:33 EST 2015


Greetings,

My issue is with the difference of the pulls under the same conditions. 
This should not be. This can only be true if somehow the data sets are 
different. I do not agree with you that we an live with somewhat 
different pull and CL distributions and I believe having a meeting on 
this would be beneficial.

I understand we have been through this several time, in fact it is 
always FSU that brought this up and it was discussed. Now I am bringing 
it up and wish to discuss it. I would hope for the same professional 
courtesy as FSU received on the subject.

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 12/18/15 6:16 PM, Volker Crede wrote:
> Michael,
>
> We have been trough this several times and I am afraid we will never 
> agree on these fine-tuning parameters. On the other hand, as long as 
> the actual code is the same, I believe we can live with somewhat 
> different pull and CL distributions … provided they look okay.
>
> - Volker
>
>
> On Dec 18, 2015, at 12:11 PM, "Michael C. Kunkel" <mkunkel at jlab.org 
> <mailto:mkunkel at jlab.org>> wrote:
>
>> This is obvious, and hence why Lei asked for everyone to show their 
>> pulls.
>> 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 12/18/15 6:09 PM, Volker Crede wrote:
>>> Apparently, there is more to it … Our distributions look better.
>>>
>>> - Volker
>>>
>>>
>>> On Dec 18, 2015, at 12:06 PM, Michael C. Kunkel <mkunkel at jlab.org> 
>>> wrote:
>>>
>>>> Incorrect. If you run a diff on the codes from FSU and the one 
>>>> shown there is no difference in any file.
>>>> 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 12/18/15 5:35 PM, Volker Crede wrote:
>>>>> Michael,
>>>>>
>>>>> I don't think this is what FSU uses for the pions … Our pulls and 
>>>>> CL distribution look slightly better.
>>>>>
>>>>> - Volker
>>>>>
>>>>>
>>>>> On Dec 16, 2015, at 5:49 AM, Michael C. Kunkel <mkunkel at jlab.org> 
>>>>> wrote:
>>>>>
>>>>>> Greetings,
>>>>>>
>>>>>> Below is a link that shows the pull probability and pull 
>>>>>> distributions look like for the tune channel of p pip pim. These 
>>>>>> parameters are what FSU, ODU, Bochum, and others use for pions.
>>>>>> We had agreed that the pull distributions were adequate if the 
>>>>>> pull probability is adequate.  However as you can see from the 
>>>>>> plot, there is a small rise in the pull probability when it 
>>>>>> approaches 1.
>>>>>>
>>>>>> https://www.jlab.org/Hall-B/secure/g12/mkunkel/G12_MEETINGS/excl_ppipi_10.pdf
>>>>>> What do you think about this?
>>>>>> -- 
>>>>>> 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
>>>>>> _______________________________________________
>>>>>> G12 mailing list
>>>>>> G12 at jlab.org <mailto:G12 at jlab.org>
>>>>>> https://mailman.jlab.org/mailman/listinfo/g12
>>>>>
>>>>>
>>>>>
>>>>>
>>>>
>>>
>>
>
>
>
>
>

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