[G12] Multiple Photon Efficiency correction

[Michael C. Kunkel]

Greetings,

I have finished the track efficiency corrections for events with 
multiple photons. I will present this at the next meeting.
Over all, it seems the new corrections decrease the spectrum by 5%, 
which was what Lei and I had originally calculated.

I would ask Zulkaida to please use these new corrections for his omega 
Xsection and compare to g11, I think the agreement will be better now.

https://jlabsvn.jlab.org/svnroot/clas/users/mkunkel/clas/g12_corrections/All_Corrections/

or

https://github.com/mckunkel/G12_Corrections

use:

     double g12_trackEfficiency(double Vz, double P_Ptot_fit, double 
P_Phi_fit, double P_Theta_fit, double Ep_Ptot_fit,double Ep_Phi_fit, 
double Ep_Theta_fit, double Em_Ptot_fit, double Em_Phi_fit, double 
Em_Theta_fit, TString DEG_or_RAD, bool MultPhoton){

Set MultPhoton = 1 for multiple photon track efficiency

-- 
BR
MK
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Michael C. Kunkel, PhD
Forschungszentrum Jülich
Nuclear Physics Institute and Juelich Center for Hadron Physics
Experimental Hadron Structure (IKP-1)
www.fz-juelich.de/ikp