[G12] Beam Correction II
Michael C. Kunkel
mkunkel at jlab.org
Sun Nov 6 17:47:03 EST 2011
On 11/6/11 6:32 AM, Dennis Weygand wrote:
> What exactly does 'manually' mean?
>
> On Nov 4, 2011, at 8:53 PM, Michael C. Kunkel wrote:
>
>> Greetings G12'rs
>>
>> I have realized if I do a manual fit to find the correction value, I
>> can obtain different correction values for the beam.
>>
>> My previous email had a correction factor of 1.00509. When I do it
>> manually I get a correction factor of 1.00584.
>>
>> I have attached the new plot for run 56515. There is now only a 2.78
>> MeV difference in the mass peak from the expect.
>>
>> I know believe this is the correct path to undertake for the beam
>> corrections.
>>
>> BR
>> MK
>>
>> <corrected_plotII.jpg>_______________________________________________
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>
> --
> Dennis Weygand
> weygand at jlab.org <mailto:weygand at jlab.org>
> (757) 269-5926 (office)
> (757) 870-4844 (cell)
>
>
>
>
It means, instead of having ROOT do a TF1 fit with initial parameters
and allowed variances, I open the histogram, right click the histogram,
open fit panel, manually set my limits ..etc.....ie manually
BR
MK
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