1. Data Analysis for a Low Momentum Particle Detector Prototype
NA61/SHINE
Data Analysis for a Low Momentum Particle Detector Prototype
Michael D. Glidden II
University of South Florida
Supervisor: Andras Laszlo, Ph.D.

2. Last Time on “The Brave Yet Doomed Nuclei of NA61”
Event centrality characterization in:
Pb+Pb Collisions
Zero Degree Calorimetry
p+Pb Collisions
Gray proton production
Clear as mud?
Time for a
total recall?
Total Recall ● ○ ○ ○ ○ Updated Progress ○ ○ ○ ○ ○ ○ ○ ○ Conclusion ☺

3. Total Recall ○ ● ○ ○ ○ Updated Progress ○ ○ ○ ○ ○ ○ ○ ○ Conclusion ☺
Pb+Pb Collisions
Incident Pb Nuclei
For b>0; collision is peripheral
For b≈0; collision is central
Participating Nucleons
Spectators b
Fixed Pb Target
Total Recall ○ ● ○ ○ ○ Updated Progress ○ ○ ○ ○ ○ ○ ○ ○ Conclusion ☺

4. Total Recall ○ ○ ● ○ ○ Updated Progress ○ ○ ○ ○ ○ ○ ○ ○ Conclusion ☺
p+Pb Collisions
Emitted nucleons
What NA61 is looking at
Gray protons are generated here
Incident proton b
Fixed Pb Target
Total Recall ○ ○ ● ○ ○ Updated Progress ○ ○ ○ ○ ○ ○ ○ ○ Conclusion ☺

5. Prototype TPC Measures the tracks of particles in 3D 3 Absorber layers
Select gray protons by limiting energy range
Why is my name Gray? Why can’t I be Pink?
It’s taken.
MeV
Total Recall ○ ○ ○ ● ○ Updated Progress ○ ○ ○ ○ ○ ○ ○ ○ Conclusion ☺

6. Total Recall ○ ○ ○ ○ ● Updated Progress ○ ○ ○ ○ ○ ○ ○ ○ Conclusion ☺

7. Total Recall ○ ○ ○ ○ ○ Updated Progress ● ○ ○ ○ ○ ○ ○ ○ Conclusion ☺

8. Total Recall ○ ○ ○ ○ ○ Updated Progress ○ ● ○ ○ ○ ○ ○ ○ Conclusion ☺
Determined the sensitive volume of the detector using 1D histograms
Dividing by time slice was ineffective
Statistics too low for 255 divisions
Divide by plane number only
Only 3 divisions
Total Recall ○ ○ ○ ○ ○ Updated Progress ○ ● ○ ○ ○ ○ ○ ○ Conclusion ☺

9. Total Recall ○ ○ ○ ○ ○ Updated Progress ○ ○ ● ○ ○ ○ ○ ○ Conclusion ☺

10. Put something else here
Total Recall ○ ○ ○ ○ ○ Updated Progress ○ ○ ○ ● ○ ○ ○ ○ Conclusion ☺

11. Total Recall ○ ○ ○ ○ ○ Updated Progress ○ ○ ○ ○ ● ○ ○ ○ Conclusion ☺

12. Total Recall ○ ○ ○ ○ ○ Updated Progress ○ ○ ○ ○ ○ ● ○ ○ Conclusion ☺

13. Total Recall ○ ○ ○ ○ ○ Updated Progress ○ ○ ○ ○ ○ ○ ● ○ Conclusion ☺

14. Total Recall ○ ○ ○ ○ ○ Updated Progress ○ ○ ○ ○ ○ ○ ○ ● Conclusion ☺

15. Total Recall ○ ○ ○ ○ ○ Updated Progress ○ ○ ○ ○ ○ ○ ○ ○ Conclusion ☻
Conclusions
Detector’s sensitive volume has roughly been selected
Future Goals:
May try concatenating runs to improve statistics
Then divide histograms into individual time slices
Or something else…
Total Recall ○ ○ ○ ○ ○ Updated Progress ○ ○ ○ ○ ○ ○ ○ ○ Conclusion ☻