Inclusive Rates

Below are the plots of rates for a 100nA beam on the polarized target. They include the inclusive electron rate and the photo production rate for each target material

35 degrees
40 degrees

Some future improvements would be to add Fermi motion for nuclear targets. This would likely help with the fitting giving greater reach to high PT.

Background Simulations

Below are the statistics limited results for the background ratio. The farm has been most of the week due to upgrades happening Friday-Saturday.

Old
New

Last week I had a problem with the photoproduction rates being too large. This was because I did not undo the equivalent quanta. That is the cross section per equivalent quanta was used (as is needed for fitting data reported experiments with varying Bremsstrahlung beams). Now the cross section for a given Bremsstrahlung beam is used, i.e., EQ = 1.

I_gamma_1
per E.Q.


The plots above show the Bremsstrahlung spectrum's deviation from 1/k, i.e., it is k times the spectrum. It is for rl=0.01 and 0.015 for two different models of the shape. If it is properly normalized per equivalent quanta, both curves should be about 1 and their shapes are only a result of the radiator thicknesses.

Wrong EQ
New
[ICO]NameLast modifiedSizeDescription

[PARENTDIR]Parent Directory   -  
[IMG]brem_spectrum_2.png 2015-06-25 13:49 10K 
[IMG]brem_spectrum.png 2015-06-25 13:55 14K 
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[IMG]simulated_background..>2015-02-22 19:39 21K 
[IMG]target.png 2015-04-30 14:57 28K 
[IMG]simple_target_yields..>2015-06-24 13:54 37K 
[IMG]simple_target_yields..>2015-06-24 13:53 38K 
[IMG]simple_target_yields..>2015-06-24 13:49 40K 
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[IMG]simple_target_yields..>2015-06-24 13:54 44K 
[IMG]simple_target_yields..>2015-06-18 21:56 44K 
[IMG]simple_target_yields..>2015-06-24 12:48 45K 
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[IMG]simple_target_yields..>2015-06-18 21:55 47K 
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[IMG]simple_target_yields..>2015-06-24 12:45 48K 
[IMG]simple_target_yields..>2015-06-18 21:55 49K 
[IMG]simple_target_yields..>2015-06-18 21:55 50K 
[IMG]simulated_background..>2015-06-25 10:31 62K 

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