[G12] Fwd: Cross Section Normalization

[Lei Guo]

Begin forwarded message:

> From: Lei Guo <lguo at jlab.org>
> Date: May 9, 2013 2:10:41 PM EDT
> To: "Michael C. Kunkel" <mkunkel at jlab.org>
> Subject: Re: [G12] Cross Section Normalization
>
> MK,
>
> Is your final state p pi- pi+ all detected? Do you have the same  
> conclusion that for Egamma > 3.6 GeV, there is no correction factor,  
> and the only correction factor (1.7) are for the lower beam energies?
>
> Lei
> On May 9, 2013, at 1:57 PM, Michael C. Kunkel wrote:
>
>> Hi Ken,
>>
>> The number I will provide is for comparison with Johann, where he  
>> derived a factor of 4.17, I am deriving a factor of 1.7.
>> There will be no numbers published until the reason for the  
>> discrepancy is discovered, and once it is discovered, we have  
>> planned to write an fully detailed account of our methodology.
>>
>>
>> BR
>> MK
>>
>>
>> On 5/9/13 12:57 PM, Hicks, Kenneth wrote:
>>> Hi MK,
>>>
>>>
>>>
>>> Are you planning to write down the details of how you got the  
>>> cross sections?  There are many details that need to be done  
>>> correctly, and unless you provide the details (what bin sizes you  
>>> used, what files you used, how the acceptance was calculated, what  
>>> trigger correction is applied, etc.) then it’s no help to know  
>>> what factor you need.  While I’m not proposing that you write a  
>>> full analysis note, you should at least say what you did to get  
>>> your cross section.
>>>
>>>
>>>
>>> Best regards,
>>>
>>> Ken
>>>
>>>
>>>
>>> From: g12-bounces at jlab.org [mailto:g12-bounces at jlab.org] On Behalf  
>>> Of Michael Kunkel
>>> Sent: Thursday, May 09, 2013 12:51 PM
>>> To: g12
>>> Subject: [G12] Cross Section Normalization
>>>
>>>
>>>
>>> Greetings G12,
>>>
>>> I have compared my cross section visually and it appears that if I  
>>> needed a correction factor it would be no greater than 2. I will  
>>> supply the plots later as I am currently working on it.
>>>
>>>
>>> BR
>>>
>>> MK
>>>
>>>
>>>
>>> Sent from my iPhone
>>>
>>
>> _______________________________________________
>> G12 mailing list
>> G12 at jlab.org
>> https://mailman.jlab.org/mailman/listinfo/g12
>
> **************************************
>        @
>       /    *
>      /   ___  ___  Lei Guo _______________________
>     L_O_/ ____ Florida International University____/_/
>         \   |             Physics Dept., CP  
> 212                       /  /
>      /    \ |             Miami, FL  
> 33199        /                       /  /
>     /  I_/ \  ____ USA _____ /______/__________/  /
>    /   /      
> L 
>                 /              /              /                       /  /
>   /   /                       /              /              /                       /  /
>  /_/__________/______/______/__________/_/
> /_/__________/______/______/__________/_/
> 305-348-0234(o)
>
> **************************************
>
>
>
>
>
>

**************************************
        @
       /    *
      /   ___  ___  Lei Guo _______________________
     L_O_/ ____ Florida International University____/_/
         \   |             Physics Dept., CP  
212                       /  /
      /    \ |             Miami, FL  
33199        /                       /  /
     /  I_/ \  ____ USA _____ /______/__________/  /
    /   /      
L 
                 /              /              /                       /  /
   /   /                       /              /              /                       /  /
  /_/__________/______/______/__________/_/
/_/__________/______/______/__________/_/
305-348-0234(o)

**************************************






-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://mailman.jlab.org/pipermail/g12/attachments/20130509/b398963b/attachment-0001.html