[b1_ana] TAC/iTAC resp.

[Elena Long]

In other words, yes, I mean that stat_error(x_i)^2 = N_events(x_i). I 
think we're on the same page.

Take care,
Ellie


Elena Long, Ph.D.
Post Doctoral Research Associate
University of New Hampshire
elena.long at unh.edu
ellie at jlab.org
http://nuclear.unh.edu/~elong
(603) 862-1962

On Mon 03 Jun 2013 05:41:34 PM EDT, Elena Long wrote:
> Good evening,
>
> It's using dAzz^{stat}(x_i) =
> SUM(drift(x_spec)*#ofContributedEvents(x_spec)) / Total#ofEvents(x_i)
>
> Or, in easier-to-read LaTeX terms, see the first section in
> https://hallcweb.jlab.org/wiki/index.php/Elong-13-06-03#Including_Drift_by_Bin
>
>
> Take care,
> Ellie
>
> Elena Long, Ph.D.
> Post Doctoral Research Associate
> University of New Hampshire
> elena.long at unh.edu
> ellie at jlab.org
> http://nuclear.unh.edu/~elong
> (603) 862-1962
>
> On Mon 03 Jun 2013 05:29:18 PM EDT, O. A. Rondon wrote:
>> Hi Ellie,
>>
>> I think the weights should be the sqrt of the numbers of events, unless
>> you mean the sum [drift(x_i)*stat_error(x_i)]^2, so stat_error(x_i)^2 =
>> N_event(x_i).
>>
>> Cheers,
>>
>> Oscar
>>
>> Elena Long wrote:
>>> Good evening,
>>>
>>> Using the drift uncertainties that Dustin lists in Table 1 of his
>>> response, I recalculated the plots for both the individual spectrometer
>>> settings and the x-rebinned plots. They can be found at
>>> https://hallcweb.jlab.org/wiki/index.php/Elong-13-06-03
>>>
>>> For the x-rebinned plots, the drifts were taken as a weighted average
>>> that was weighted by the number of events that each spectrometer
>>> setting contributed to a particular x bin.
>>>
>>> Take care,
>>> Ellie
>>>
>>> Elena Long, Ph.D.
>>> Post Doctoral Research Associate
>>> University of New Hampshire
>>> elena.long at unh.edu
>>> ellie at jlab.org
>>> http://nuclear.unh.edu/~elong
>>> (603) 862-1962
>>>
>>> On Mon 03 Jun 2013 02:40:21 PM EDT, Dustin Keller wrote:
>>>> The working rough draft of the TAC/iTAC response is at
>>>> https://userweb.jlab.org/~dustin/work/b1_dir/Azz_response/
>>>>
>>>> we may need considerable altering, editing, and condensing
>>>> but all the information is there.
>>>>
>>>> dustin
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