[G12] Target Position

[Michael C. Kunkel]

Greetings,

I calculated the systematic of the track efficiency to be ~ 5% over all 
kinematic bins of the correction.
Can you clarify what you mean by " but it comes with a large systematic 
uncertainty."

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 7/12/16 7:38 PM, Volker Crede wrote:
> Lei,
>
> Bad TOF paddles were knocked out. The z-dependence cannot be properly 
> taken care of by MK's efficiency map since it depends on the 
> kinematics of the final-state particles. It can provide an average 
> correction which we have been using but it comes with a large 
> systematic uncertainty.
>
> - Volker
>
>
> On Jul 12, 2016, at 1:34 PM, Lei Guo <lguo at jlab.org 
> <mailto:lguo at jlab.org>> wrote:
>
>> We should expect that the acceptance is z-dependent since it’s such a 
>> long target. MK’s efficiency map also is z-dependent. Has the map 
>> been applied, and the photon multiplicity been dealt with correctly? 
>> Was the bad TOF paddles knocked out?
>>
>>
>> Lei Guo
>> Assistant Professor
>> Physics Department
>> Florida International University
>> Miami, FL
>>
>> email: leguo at fiu.edu <mailto:leguo at fiu.edu> or lguo at jlab.org 
>> <mailto:lguo at jlab.org>
>> Office:305-348-0234
>>

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