[Eg2] RC code instructions

[Dupré Raphaël]

Hi Hayk,

Could you explain the parameters? What formula did you use to extract those
from data?

Thanks

On Tue, Apr 12, 2011 at 5:02 PM, Hayk Hakobyan <hayk at jlab.org> wrote:

>
> Dear Eg2,
>
> Here I send you some instructions to use the HAPRAD_CPP code.
> https://github.com/usm-data-analysis/HAPRAD_cpp
>
> For some reason in the production version of HAPRAD_CPP there was the
> code with old HAPRAD2 parameters. Now the production version is
> updated so it has the write version in it.
>
> To process pi+'s one should create in the test directory text file
> called "parameters" and put the following inside:
>
> In the case of the deuterium:
> par0 = 5.54600e-02;
> par1 = 1.01711e+00;
> par2 = -8.47055e-01;
> par3 = 7.76589e-02;
> par4 = 5.86747e-11;
> A1 = 2.51386e-01;
> B1 = 1.04605e+00;
> C1 = -1.16972e+00;
> D1 = -1.40120e+00;
> E1 = 1.97121e+00;
>
> In the case of the carbon:
> par0 = 1.05430e-01;
> par1 = 1.33184e+00;
> par2 = -1.25147e+00;
> par3 = -2.61048e-01;
> par4 = 3.67470e-01;
> A1 = 9.79762e-02;
> B1 = 5.62038e-01;
> C1 = -4.64066e-01;
> D1 = -2.27958e-01;
> E1 = 2.89126e-01;
>
> In the case of the iron:
> par0 = 1.07049e-01
> par1 = 1.44052e+00
> par2 = -1.37651e+00
> par3 = -3.70841e-01
> par4 = 6.24209e-01
> A1 = 8.66764e-02
> B1 = 6.02301e-01
> C1 = -3.76230e-01
> D1 = -2.42141e-01
> E1 = 3.98611e-01
>
>
> In the case of the lead:
> par0 = 1.07485e-01;
> par1 = 1.46133e+00;
> par2 = -1.41410e+00;
> par3 = -3.36003e-01;
> par4 = 5.16617e-01;
> A1 = 1.00957e-01;
> B1 = 6.29042e-01;
> C1 = -5.31384e-01;
> D1 = -2.48889e-01;
> E1 = 3.21765e-01;
>
> Besides that one should take care of the fraction of protons in the nuclear
> for exclusive tail by changing it from 1/2 which is for case of deuterium
> to
> the corresponding number for the solid target in the function called
> GetFactor3(). This requires the program to be recompiled. I'll let you
> know when this part also will be simplified for use.
>
> To use the code for pi- and pi0 there are some modifications which
> still should be done. I'll do it pretty soon and let you know too.
>
> Please feel free to ask any question you may have.
>
> Thanks,
> Hayk.
>
>
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>



-- 
Raphaël Dupré

Web Page <http://www.jlab.org/%7Edupre/>

Argonne National Laboratory

Université Claude Bernard Lyon 1
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