[Eg6_analysis] meeting tomorrow

[hattawy]

Hello Nathan and all,
    Yes it is, the results are attached for both channels.

-mohammad


On 2015-05-29 02:22, Nathan Baltzell wrote:
> Hi Mohammad,
> 
> I think you said it, but just to be sure:
> This systematic difference of R from two different models is also
> constant in dvcs-phi?
> 
> -Nathan
> 
> 
> 
> On May 28, 2015, at 12:52 PM, hattawy <hattawy at ipno.in2p3.fr> wrote:
> 
>> Hello Stepan and all,
>> 
>>   Following our discussion yesterday about estimating the systematic 
>> uncertainty induced by the calculated acceptance ratio ( 
>> R(1gamma/2gamma) ).
>>   I initially estimated it from repeating the analysis using +-20% on 
>> the calculated R. After your suggestion of calculating this ratio 
>> without applying the cross section parametrization at the level of 
>> generating the events, i.e. flat production in the four kinematic 
>> variables: Q2, t, xB and phi. The results is attached.
>> 
>>   In the plot, the acceptance ratio as versus Q2. The blue (red) 
>> points are the ratio with (without) the cross section parametrization. 
>> You can see that the shape of the ratio is almost consistence, with 
>> uniform increase. I observed the same behavior for the rest of the 
>> variables, and the coherent channel as well. We can conclude that the 
>> initial method of +-20% is good enough to give us an estimation of 
>> this uncertainty.
>> 
>>   Can you please refer me to the exact precision of the Moller 
>> polarimeter.
>> 
>> Best regards,
>> Mohammad.
>> 
>> 
>> 
>> 
>> 
>> 
>> On 2015-05-27 02:16, Nathan Baltzell wrote:
>>> Hello Everyone,
>>> We will have our weekly meeting tomorrow, May 27, at 10:00 in L210.
>>> Add to the agenda:
>>> https://clasweb.jlab.org/rungroups/lowq/wiki/index.php/Meeting_on_May_27,_2015_@_10:00AM
>>> Bluejeans meeting instructions:
>>> URL:
>>> https://bluejeans.com/151158041/
>>> Dial In:
>>> +1 408 740 7256 or +1 888 240 2560
>>> then the meeting ID followed by #:
>>> 151158041##
>>> -Nathan
>>> _______________________________________________
>>> Eg6_analysis mailing list
>>> Eg6_analysis at jlab.org
>>> https://mailman.jlab.org/mailman/listinfo/eg6_analysis
>> <accp_ratio.png>_______________________________________________
>> Eg6_analysis mailing list
>> Eg6_analysis at jlab.org
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