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K40 Background Simulations for the Seawiet OM

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Results: Correlated rates<br />

we distinguish between random coincidences and<br />

correlated coincidences<br />

correlated coincidences account <strong>for</strong> roughly 3/4 of<br />

total coincidence rate<br />

rates scale with photocathode area<br />

Simulation total rate correlated 10ns coincidences<br />

70 mm PC,<br />

Acqua Nemo<br />

75 mm PC,<br />

Acqua Nemo<br />

70 mm PC,<br />

Eau d'Antares<br />

75 mm PC,<br />

Eau d'Antares<br />

149 kHz 680 ± 10 Hz 920 ± 120 Hz<br />

not yet<br />

simulated<br />

830 ± 30 Hz n.y.s<br />

n.y.s 690 ± 24 Hz n.y.s<br />

n.y.s 860 ± 30 Hz n.y.s

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