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Analysis of X-Distribution and Dispersion in TOF Measurements: Insights and Findings

This report summarizes the findings from the analysis of oddities in the x-distribution at TOF0, addressing previously identified issues related to lumps and bumps, which have been resolved. However, persistent problems concerning dispersion in both horizontal and vertical planes were observed. The analysis also explores the relationship between x at TOF0 and TOF1, further complicating the narrative. Detailed plots and statistical data provide insights into normalized distributions and mean positions, illustrating the complexities within the experiment.

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Analysis of X-Distribution and Dispersion in TOF Measurements: Insights and Findings

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Presentation Transcript

  1. Step 1 Analysis:The Story So Far V. Blackmore

  2. Summary • Previously: • Oddities in the x-distribution at TOF0 (lumps and bumps)  Problem fixed. • Was also something odd happening w.r.t. dispersion in the horizontal and vertical planes  Problem persists (?) • What do we mean by ‘dispersion’?  Also looked at the relationship between x at TOF0 and x at TOF1. Again, ‘the plot thickens.’ • Very little interference in these plots from reconstruction technique. Just the positions as measured by the TOFs!

  3. (6, 200) m- Simulation Reconstructed Simulation Data

  4. (6, 200) m+ Simulation Reconstructed Simulation Data

  5. (6, 200) m+ (6, 200) m- Simulation Reconstructed Simulation Data Slopes: + and - data - simulation + simulation

  6. The Bigger Picture • Links in table go to pdf’s with much more detail (NB: same legend applies to all of these pdf’s). • Contents: • Page 1: Trace space plots in the horizontal (top row) and vertical (bottom row) plane at TOF0. • Page 2: Trace space plots in the horizontal and vertical plane at at TOF1. • Page 3: (x, y) plots at TOF0 (top row) and TOF1 (bottom row) • Page 4: Normalised x and y distributions at TOF0 (top) and TOF1 (bottom). • Page 5: Normalised x’ and y’ distributions at TOF0 (top) and TOF1 (bottom). • Page 6: Normalised Pz distribution at TOF1. • Page 7: Dispersion in the horizontal and vertical plane at TOF0 (top) and TOF1 (bottom) • Page 8: Mean horizontal (vertical) position at TOF1, with respect to horizontal (vertical) position at TOF0. • Page 9: Mean positions and angles w.r.t. x at TOF0 and TOF1 (top), and w.r.t. y at TOF0 and TOF1 (bottom) • Page 10: (r, Pf) at TOF1 (top) and mean Pf w.r.t. r at TOF1 (bottom).

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