[Hybrid baryons] Documentation on new 2pi event generator.

[Viktor Mokeev]

Hi Iulia and Gleb,

 I guess I understand the factor in Eq (4.7) in front of the product (virt. photon flux)*d^5 sigma/d^5 \tau.

It is the full 5d space volume for the given (W,Q^2) bin. Correct?

 If so, how you get 2*pi^3 as integral over angular variables?

 Integral {sin(theta)d\theta*d\phi*d\alpha}=2*(2*\pi)*(2*\pi)=8*pi^2

 Perhaps better to discuss this question at the upcoming Meeting. I am pretty sure your Eq (4.7 ) is correct since you are reproducing integrated cross section. I just need the explanation in order to understand Eq. (4.7) by myself.

  Best Regards,
                      Victor

----- Original Message -----
From: "Gleb Fedotov" <glebfedotov at gmail.com>
To: "hybrid baryons" <hybrid_baryons at jlab.org>
Sent: Tuesday, December 20, 2016 2:49:31 PM
Subject: Re: [Hybrid baryons] Documentation on new 2pi event generator.

Dear Victor,

Thank you for your comments and suggestions.

I will attend our  regular Jlab/MSU Meeting next Thursday at 10.00 am
and will be glad to discuss with your the future work.

Best regards,
         Gleb.


On Tue, Dec 20, 2016 at 1:43 PM, Viktor Mokeev <mokeev at jlab.org> wrote:
>   Dear Iulia and Gleb,
>
>  In my view, you have developed the most advanced pi^+pi^-p EG. I like your work and really think that your note and approach should serve as the template for others EG's. To facilitate this, I would suggest to discuss all my comments during the regular Jlab/MSU Meeting next Thursday 10.00 am
> EST. I hope at least one of you will be able to attend this Meeting.
>
>  As the work for the future:
>
> 1. E.Isupov/K.Hicks Npipi cross sections fit within the updated JM model should be included to the EG after I will complete the fit of this data.
> 2. I propose to provide the option of your code making it possible to evaluate the  interpolated 5D cross sections after implementation  by user of any new set(s) of the model 5D pi^+pi^-p cross sections.
>
>
>    Best Regards,
>                         Victor
> ----- Original Message -----
> From: "Ralf Gothe" <rwgothe at gmail.com>
> To: "hybrid baryons" <hybrid_baryons at jlab.org>
> Sent: Tuesday, December 20, 2016 1:16:05 PM
> Subject: Re: [Hybrid baryons] Documentation on new 2pi event generator.
>
> Dear Iuliia and Gleb,
>
> please find attached my comments on this very well explained and structured CLAS12 Note.
>
> Best wishes,
>
> Ralf
>
> On Thu, Dec 15, 2016 at 10:01 PM, Gleb Fedotov < gleb at jlab.org > wrote:
>
>
> Dear All,
>
> We have just prepared the document with the detailed description of new 2pi EG:
> https://userweb.jlab.org/~gleb/twopeg12/twopeg.pdf
>
> We also would like to submit it as a CLAS12 NOTE.
>
> Best regards,
> Gleb & Iuliia.
> _______________________________________________
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>
>
> --
> Prof. Ralf W. Gothe
> Department of Physics and Astronomy
> University of South Carolina
> Columbia, SC 29208
> Phone: 803 777 9025
> Fax: 803 777 3065
>
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