[G14_run] G14_run Digest, Vol 74, Issue 3 (Tuneo's question to K Sigma analysis note)

Sat Nov 4 22:57:28 EDT 2017

Nick,

 thank you for the response. 
 I would like to know why the absolute is more appropriate.
 I will look forward the statements.

     Regards, Tsuneo Kageya.

----- Original Message -----
From: "Nicholas Zachariou" <nicholas at jlab.org>
To: "Tsuneo Kageya" <kageya at jlab.org>
Cc: "g14 run" <g14_run at jlab.org>
Sent: Saturday, November 4, 2017 3:23:46 PM
Subject: Re: [G14_run] G14_run Digest, Vol 74, Issue 3 (Tuneo's  question to K Sigma analysis note)

Hi Tsuneo,

The absolute error is propagated directly to the total uncertainty (sigma_tot=sqrt(sigma_sys_absolute^2+(ObservableValue*sigma_sys_relative)^2 + sigma_statistical^2).

I can elaborate more if you like on why thats the case (why absolute are more appropriate in my case). I will include some statements in the note to reflect this.

Let me know if you would like to discuss this more.

Best regards,
Nick

On Nov 4, 2017, 19:12, at 19:12, Tsuneo Kageya <kageya at jlab.org> wrote:
>Hi Nick,
>
> Sorry to be late to make a question.
> I have a question about the systematic error calculations.
>
>At page 35, on the table 4, you calculated the total absolute
>systematic error
>to be 0.10.   How this is reflected into the total relative systematic
>error ?
>On the pi-p analysis, I think we calculated the systematic errors from
>cuts in
>the similar way and they are combined to the other errors (target and
>beam polarizations).
>Is this number 0.10 means 10 % or 0.1 % ?
>
> I may misunderstand this issue.  Please let me know.
>
>    Regards, Tsuneo Kageya.
>
>----- Original Message -----
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>To: "g14 run" <g14_run at jlab.org>
>Sent: Saturday, November 4, 2017 12:00:03 PM
>Subject: G14_run Digest, Vol 74, Issue 3
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>Today's Topics:
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>   1. Re: Updated Analysis Note (Reinhard Schumacher)
>   2. Re: Updated Analysis Note (Nicholas Zachariou)
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>----------------------------------------------------------------------
>
>Message: 1
>Date: Fri, 3 Nov 2017 22:19:24 -0400
>From: Reinhard Schumacher <schumacher at cmu.edu>
>To: g14_run at jlab.org
>Subject: Re: [G14_run] Updated Analysis Note
>Message-ID: <a5780718-56ac-1dc0-44e8-6b991dbf849b at cmu.edu>
>Content-Type: text/plain; charset="windows-1252"; Format="flowed"
>
>Hi Nick,
>
>Indeed, noticeably improved.?? I recommend that you put the horizontal
>error bars on Figs.? 29 - 32, too.? They are just as important there
>since the model curves can vary a lot across one bin.
>
>Reinhard
>
>
>On 11/3/2017 7:13 PM, Nicholas Zachariou wrote:
>> Dear all,
>>
>> I am attaching the updated note that incorporates and addresses all
>comments made. I have noticed that I have previously forgotten to
>include the systematic uncertainty associated with the
>photon-selection, and is now estimated and included.
>> I would like to thank again Shumacher for his time and valuable
>insight, and everybody for the comments and feedback. If there is no
>other comments, I will be submitting the note early next week.
>>
>> Best regards,
>> Nick
>>
>>
>>
>>
>>
>>
>>
>> _______________________________________________
>> G14_run mailing list
>> G14_run at jlab.org
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>
>--
>___________________________________________________________________
>Reinhard Schumacher         Department of Physics, 5000 Forbes Ave.
>Carnegie Mellon University, Pittsburgh, PA 15213, U.S.A.
>phone: 412-268-5177         web: www-meg.phys.cmu.edu/~schumach
>___________________________________________________________________
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>Message: 2
>Date: Sat, 04 Nov 2017 07:10:14 +0000
>From: Nicholas Zachariou <nicholas at jlab.org>
>To: Reinhard Schumacher <schumacher at cmu.edu>
>Cc: G14 Run <g14_run at jlab.org>
>Subject: Re: [G14_run] Updated Analysis Note
>Message-ID: <d21ed42f-6b13-482d-8c8b-4ea087ad31e1 at jlab.org>
>Content-Type: text/plain; charset="utf-8"
>
>Hi Reinhard,
>
>The figures looked a bit busy when I did that (too many lines) and
>thats why i left the x-uncertainties out in those, but its takes me 2
>minutes to incorborate them. I think that will be more relevant when we
>decide exactly how to present our results in the publication.
>
>In the meantime I was wondering if its OK with the group to share our
>preliminary results with the theorists and see if we can get any
>insights from them.
>
>Best regards,
>Nick
>
>
>On Nov 4, 2017, 02:19, at 02:19, Reinhard Schumacher
><schumacher at cmu.edu> wrote:
>>Hi Nick,
>>
>>Indeed, noticeably improved.?? I recommend that you put the horizontal
>
>>error bars on Figs.? 29 - 32, too.? They are just as important there
>>since the model curves can vary a lot across one bin.
>>
>>Reinhard
>>
>>
>>On 11/3/2017 7:13 PM, Nicholas Zachariou wrote:
>>> Dear all,
>>>
>>> I am attaching the updated note that incorporates and addresses all
>>comments made. I have noticed that I have previously forgotten to
>>include the systematic uncertainty associated with the
>>photon-selection, and is now estimated and included.
>>> I would like to thank again Shumacher for his time and valuable
>>insight, and everybody for the comments and feedback. If there is no
>>other comments, I will be submitting the note early next week.
>>>
>>> Best regards,
>>> Nick
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> G14_run mailing list
>>> G14_run at jlab.org
>>> https://mailman.jlab.org/mailman/listinfo/g14_run
>>
>>--
>>___________________________________________________________________
>>Reinhard Schumacher         Department of Physics, 5000 Forbes Ave.
>>Carnegie Mellon University, Pittsburgh, PA 15213, U.S.A.
>>phone: 412-268-5177         web: www-meg.phys.cmu.edu/~schumach
>>___________________________________________________________________
>>
>>
>>
>>------------------------------------------------------------------------
>>
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>>G14_run mailing list
>>G14_run at jlab.org
>>https://mailman.jlab.org/mailman/listinfo/g14_run
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