20161019 Benedikt Würkner 2 Benedikt Würkner Overview Created copy of PatRecBMonitor to have version that accepts only data and doesnt require MC data TrackBMonitor Removed all plots of MC data ID: 792112
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Slide1
Slide2BGV Track Reconstruction monitor first results
2016-10-19
Benedikt Würkner
2
Benedikt Würkner
Slide3Overview
Created copy of PatRecBMonitor to have version that accepts only data (and doesn't require MC data) - TrackBMonitor
Removed all plots of MC dataAdded plots of x,y and z DOCAAdded plot of x-y DOCANoticed some features in these plots
2016-10-19
Benedikt Würkner
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Slide4Comparison of x and y DOCA - Run1863
Sigma of 0.48
Sigma of 0.292
2016-10-19
Benedikt Würkner
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Slide5Comparison of DOCA for 4 runs with different gas pressure
2016-10-19
Benedikt Würkner
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R1820
R1821
R1822
R1823
Run properties
1820: 1.6e-9 mbar
1821: 2.5e-8 mbar
1822: 1.2e-8 mbar
1823: 2e-9 mbar
Noticeable behavior:
Higher amount of gas reduces DOCA spot size
There are noticeable lines at 45 degrees and vertically
Slide6Comparison to MC data
Large difference between x and y coordinate noticedDecided to compare to MC simulation using the
TrackBMonitor
2016-10-19Benedikt Würkner
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Shows similar features regarding the 45 degree line but doesn't have the distinct oval shape
MC
R1863
Slide7Further comparison of MC data
MCSigma: 0.36
R1863
Sigma: 0.48
2016-10-19
Benedikt Würkner
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Slide8Further comparison of MC data
MCSigma: 0.39
R1863
Sigma: 0.29
2016-10-19
Benedikt Würkner
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Slide9Further comparison of to MC data
MC
R1820
2016-10-19
Benedikt Würkner
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Slide10Further comparison of to MC data
MC
R1820
2016-10-19
Benedikt Würkner
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Angle distribution looks completely different for the x-axis
Slide11New approach with DOCA
Trying to make use of the DOCA (Distance Of Closest Approach) and its distribution
Added multiple plots to the analysis to compare different aspects of the reconstructionHistogram of DOCAHistogram of polar angle (theta)DOCA vs theta
DOCA2(x*sin(theta)-y*cos(theta)) vs theta
2016-10-19
Benedikt Würkner
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Slide12DOCA with gauss fit
MC
R1820
2016-10-19
Benedikt Würkner
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Slide13Polar angle (theta)
MC
R1820
2016-10-19Benedikt Würkner
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Slide14DOCA vs theta
MC
R1820
2016-10-19Benedikt Würkner
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Slide15DOCA2 vs theta
MC
R1820
2016-10-19
Benedikt Würkner
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Slide16Conclusion
Influence of gas is definitely noticeable on the
DOCAFeatures like the 45 degree line are also visible in the MC data -> either part of the reconstruction or of the datax and y coordinate differ greatly in their width both in data as well as in the MC simulation
X and y angle behave differently in data vs MCDOCA corresponds to a gaussian profile
2016-10-19
Benedikt Würkner
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Slide17