[Frost] How do you find the dilution factor?

[Michael Dugger]

Sung,

My previous email was wrong. Your dilution factor equation makes sense 
with the use on the helicity web page. It took me a couple of minutes to 
figure out how you put the dilution factor together.

Sorry for the confusion.

Take care,
Michael

On Fri, 25 Feb 2011, Michael Dugger wrote:

>
> Sung,
>
> I have been using the subtraction method, so there might be some problem
> with my understanding on how these dilution factors are put together and
> used.
>
> I could be wrong, but I think that your definition of the dilution factor
> might be inverted with respect to what I see on the helicity web page:
> http://clasweb.jlab.org/rungroups/g9/wiki/index.php/Helicity_assignment_for_g9a
> Also there might be a sign problem.
>
> You might want to define how you are using the dilution factor. For
> example:
>
> E = (1/(D*P))*[N_a - N_b]/[N_a + N_b],
>
> Or
>
> E = (D/P)*[N_a - N_b]/[N_a + N_b],
>
> where
> D = dilution factor
> P = beam*target polarizations
> ...etc
>
> -Michael
>
> On Fri, 25 Feb 2011, Sungkyun Park wrote:
>
>> Hi Jo,
>>
>> In your update, I have a simple question.
>> How do you find the Dilution Factor?
>>
>> I define the dilution factor as the ratio between the hydrogen and the full butanol contribution to the cross section. I used the following equation:
>>
>> (Dilution factor) = 1 - N(carbon)/N(Butanol)*(Scaling Factor)
>> where N(carbon) is the number of event in carbon and I count the events in the missing mass plot of carbon. N(Butanol) is the number of event in buutanol.
>>
>> Sung
>> Florida State University
>>
> _______________________________________________
> Frost mailing list
> Frost at jlab.org
> https://mailman.jlab.org/mailman/listinfo/frost
>