[G12] Corrected Moments Plots

Mukesh Saini msaini at fsu.edu
Tue Aug 16 23:57:49 EDT 2011


Hi Lei,

I uploaded the plots from the MC at:

http://clasweb.jlab.org/rungroups/g12/wiki/index.php/Strangeonia#Moments_plots

The MC was generated with the following method:

Phi-Eta data (phi-eta Invariant Mass and Beam Energy spectra) was divided into 40 MeV bins of mass and 200 MeV bins of photon beam energy. 

For every data event in such a 2D bin of Mass and Energy, 1000 events were generated in the same Mass Range, and the same Beam Energy Range. This allowed the MC to better reproduce the photon beam as well as the X-Mass spectra (phi-eta Invariant Mass).

The t-slope used for MC was 1.37 as that reproduces the data t-slope most closely.

Mukesh.

----- Original Message -----
From: Lei Guo <lguo at jlab.org>
Date: Tuesday, August 16, 2011 12:38 pm
Subject: Re: [G12] Corrected Moments Plots
To: Mukesh Saini <msaini at fsu.edu>
Cc: g12 at jlab.org

> HI, Mukesh,
> 
> Do you have those plots for simulation?
> 
> Lei
> On Aug 16, 2011, at 12:30 PM, Mukesh Saini wrote:
> 
> > Hi All,
> >
> > During the last meeting I was advised to calculate a few D-
> Function  
> > values by hand on paper and that suggestion promptly identified 
> the  
> > bug in the code.
> >
> > Earlier I made a mistake while calling my "D-Function" function  
> > using angles in radians while I should have done it in degrees. 
> That  
> > led to all returned values of small-d to be between 0.96-0.99.
> > leading to the issue described earlier.
> >
> > I have checked the values "on paper" for a few phi, theta, l, m, 
> n  
> > combinations and they are as expected.
> >
> > I have the updated plot at :
> >
> > 
> http://clasweb.jlab.org/rungroups/g12/wiki/index.php/Strangeonia#Moments_plots>
> > Do let me know if you spot an issue.
> >
> > Thanks for the suggestion.
> >
> > Mukesh Saini,
> > Graduate Student,
> > Florida State University.
> > _______________________________________________
> > G12 mailing list
> > G12 at jlab.org
> > https://mailman.jlab.org/mailman/listinfo/g12
> 
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Graduate Student,
Florida State University.


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