BCal Beam Test Plots, December 19, 2006

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  • cuts used:
trig==8  Nphotons==1  Ntdctrig>=8  tveto<-100


  • (Figure 1.) E_{{beam}}/E_{{cal}} distribution using Monte Carlo corrected phototube calibration factors
Figure 1.


  • (Figure 2.) Plots of Z for different beam energy cuts where : z={\frac  {E_{{cal}}-E_{{beam}}}{E_{{beam}}}}

Figure 2.

(a) 0.20 to 0.25 GeV
(b) 0.25 to 0.30 GeV
(c) 0.30 to 0.35 GeV
(d) 0.35 to 0.40 GeV
(e) 0.40 to 0.45 GeV
(f) 0.45 to 0.50 GeV
(g) 0.50 to 0.55 GeV
(h) 0.55 to 0.60 GeV



  • (Figure 3.)Means vs E_{beam} from Gaussian fits of z from Monte Carlo corrected data
Figure 3.


  • (Figure 4.)Sigma vs E_{beam} from Gaussian fits of z from Monte Carlo corrected data. The curve is a fit to the function a/sqrt(E[Gev]) + b where and a = 0.046 +/- 0.005 and b = 0.033 +/- 0.005. This is very similar to Alex's note from December 16, 2006 where a = 0.050 and b = 0.020.
Figure 4.