[G12] Beam Energy Corrections for All Runs
Mukesh Saini
msaini at fsu.edu
Sun Nov 6 18:10:34 EST 2011
Hi All,
The following file contains the plots for Beam Energy Corrected Protons from the Missing Mass off of (PiPlus PiMinus).
http://hadron.physics.fsu.edu/~mukesh/files/Beam_Energy_Corrections.pdf
>From the plot, we can see that the Beam Energy Correction's I have currently, work.
These are a list of numbers, one for each run, and I multiply each event beam photon energy by this factor to get the new beam 4-vector and go on to calculate the MM(pi+pi-) from p pi+ pi- exclusive events.
Protons for most of the Runs, after BEC, have a (Mean) Mass within 0.3 MeV of the actual proton mass.
You can compare these plots with the earlier ones presented at:
http://clasweb.jlab.org/rungroups/g12/wiki/index.php/Omega_Cross-Section_Check
Let me know your thoughts and questions,
Mukesh,
Graduate Student,
Florida State University.
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