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The multiple scattering plot fit gives: x/x0 = 2.94 +- 0.03
The (rescaled) momentum resolution fit gives a constant value: c = (1.395 +- 0.007)%
Notice that some of the runs have a different magnet current (this is necessary if we don't change the geometry), but, after rescaling the resolution so a rescaling to the same bending power we observeis needed.
The (rescaled) momentum resolution fit gives a constant value: c = (1.395 +- 0.007)%
The momentum resolution, at different bending power, can be evalueted with:
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dp/p(%) = c*BL_max/BL = 1.395*0.7089/BL |
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Here is a table of calculated tagger resolution for particular current settings:
Current (A) | dp/p (%) |
|---|---|
100 | 8.1092 |
120 | 6.7661 |
150 | 5.42303 |
180 | 4.52769 |
200 | 4.08003 |
220 | 3.71378 |
240 | 3.40858 |
250 | 3.27429 |
300 | 2.73719 |
350 | 2.35359 |
360 | 2.28966 |
400 | 2.06593 |
420 | 1.97006 |
450 | 1.84223 |
500 | 1.66331 |
550 | 1.51695 |
600 | 1.39501 |
650 | 1.29186 |
700 | 1.20346 |
Calibration of the bending magnet
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B*L (T*m) = 0.0012271*I(A) - 7.60132e-08*I^2(A^2) |
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Angular reconstruction
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