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Trigger study

Trigger study. There are two data samples in this analysis - Minbias and Topology Minbias is assumed to include events with nuclear excitation and the subsequent emission of neutrons Topology is assumed to exclude this nuclear excitation

sarah-mcknight
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Trigger study

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  1. Trigger study • There are two data samples in this analysis - Minbias and Topology • Minbias is assumed to include events with nuclear excitation and the subsequent emission of neutrons • Topology is assumed to exclude this nuclear excitation • To understand the admixture of triggers in these two data samples we can look at the trigger words they contain.

  2. TOPO: Trigger word 12289 CTB < 75 B + Y Topology cut (L3) No ZDC TOPO+ ZDC: Trigger word 12290 CTB < 75 B + Y Topology cut (L3) ZDC Coincidence TOPO efficiency: Trigger word 12305 CTB < 75 B + Y ZDC Coincidence No topology cut 4352 - 1 count Topology Data Set 12289 - 20009 counts 12290 - 2148 counts 12305 - 4315 counts Most of the triggers include the topology cut. Though there are some events without the topology cut, the analysis cuts mostly exclude triggers without the topology cuts.

  3. TOPO: Trigger word 12289 CTB < 75 B + Y Topology cut (L3) No ZDC TOPO+ ZDC: Trigger word 12290 CTB < 75 B + Y Topology cut (L3) ZDC Coincidence UPC Min-Bias Trigger word: 4097 BY Sync+ZDC Coinc.+ZDC Vertex CTB ADC < 75 4096 - 605 counts 4097 - 9888 counts Minbias Data Set 12289 - 825 counts 12290 - 65 counts Most of the triggers do not include the topology cut.

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