BCal Beam Test Plots, December 19, 2006

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


  • (Figure 1.) Ebeam / Ecal distribution using Monte Carlo corrected phototube calibration factors
Figure 1.
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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
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(a) 0.20 to 0.25 GeV
(b) 0.25 to 0.30 GeV
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(b) 0.25 to 0.30 GeV
(c) 0.30 to 0.35 GeV
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(c) 0.30 to 0.35 GeV
(d) 0.35 to 0.40 GeV
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(d) 0.35 to 0.40 GeV
(e) 0.40 to 0.45 GeV
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(e) 0.40 to 0.45 GeV
(f) 0.45 to 0.50 GeV
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(f) 0.45 to 0.50 GeV
(g) 0.50 to 0.55 GeV
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(g) 0.50 to 0.55 GeV
(h) 0.55 to 0.60 GeV
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(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.
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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.
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Figure 4.


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