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Old MC set summary. Monte Carlo set comparison. New MC set summary. 400k events generated for each set in STARlight Radius adjusted for matching exponential slope of t-spectrum Fully reconstructed (raw output run through same processes as data to account for detector effects)

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New mc set summary

Old MC set summary

Monte Carlo set comparison

New MC set summary

  • 400k events generated for each set in STARlight

  • Radius adjusted for matching exponential slope of t-spectrum

  • Fully reconstructed (raw output run through same processes as data to account for detector effects)

  • ‘Old’ MC Set - radius matched to exponential slope for both MC sets (with and without interference)

  • ‘New’ MC Set - same radius for both sets




1 STARlight

2

Explanation of plots:

Ratio of GEANT corrected Monte Carlo (STARlight) interference t-spectrum (t~pT2) to no-interference t-spectrum

Ratio of uncorrected STARlight interference t-spectrum to no-interference t-spectrum

Efficiency curves calculated for interference and no-interference scenarios (ratio of MC t-spectrum run through GEANT to t-spectrum not run through GEANT)

MC interference histogram (blue), MC no-interference histogram (green), uncorrected data (red points), overall parameterization (red curve)

uncorrected data (red points), overall parameterization (red curve)

3

4

5


Upc minbias with nuclear excitation or upc topology without nuclear excitation trigger dataset

1 STARlight

2

Explanation of statistics:

(1) p0 - p6, fit parameters for 6th order polynomial fit to ratio

(2) Same as 1

(4 &5)

p0 - p2 come from overall fit:

p0 = A

p1 = c

p2 = k

UPC MinBias(with nuclear excitation) or UPC topology(without nuclear excitation) = trigger dataset

3

4

5


Old upc minbias 0 1 y 0 5
old UPC MinBias STARlight 0.1 < y < 0.5

new UPC MinBias 0.0 < y < 0.5


Old upc minbias 0 1 y 0 51
old UPC MinBias STARlight 0.1 < y < 0.5

new UPC MinBias 0.0 < y < 0.5


Old upc minbias 0 5 y 1 0
old UPC MinBias STARlight 0.5 < y < 1.0

new UPC MinBias 0.5 < y < 1.0


Old upc minbias 0 5 y 1 01
old UPC MinBias STARlight 0.5 < y < 1.0

new UPC MinBias 0.5 < y < 1.0


Old upc topology 0 1 y 0 5
old UPC Topology STARlight 0.1 < y < 0.5

new UPC Topology 0.1 < y < 0.5


Old upc topology 0 1 y 0 51
old UPC Topology STARlight 0.1 < y < 0.5

new UPC Topology 0.1 < y < 0.5


Old upc topology 0 5 y 1 0
old UPC Topology STARlight 0.5 < y < 1.0

new UPC Topology 0.5 < y < 1.0


Old upc topology 0 5 y 1 01
old UPC Topology STARlight 0.5 < y < 1.0

new UPC Topology 0.5 < y < 1.0


Mc set summary
MC set Summary STARlight


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