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MC Noise Study

Study comparing noise in Neutrino MC with 1000 events, including small suppression and grouping by layers, ieta, and iphi. Analyzing 340 plots, comparing sigma settings, and obtaining RMS values for suppressed and unsuppressed channels. Evaluation of data noisiness with offline suppression, CTF meeting analysis, and discrepancies between MC and actual data noise.

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MC Noise Study

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  1. MC Noise Study • Neutrino MC, 1000 events (Serban) • Version p11.12.01, new noise file • Small suppression • Grouping: each layer, 2 in |ieta|, all iphi • => 17 * 20 = 340 plots • Compare w/ sigma setting in generation • Compare w/ noise from data • Get RMS from plots (=>suppressed) • Put back suppressed channels • In each event, valid but absent cells • are assumed to have E ~ 1 MeV slightly • Get RMS from “unsuppressed” plots • Take average for sigma of MC • No beam data (1.5 online suppression) 10k • Neutrino MC pass 1.5 offline suppression • Compare RMS CTF Meeting 10/7/02

  2. W/ or W/O suppressed cells CTF Meeting 10/7/02

  3. sigma setting VS sigma saw in MC Bin Size Diff in Eta CTF Meeting 10/7/02

  4. 2. MC noise VS noise in data Stat. Of MC CTF Meeting 10/7/02

  5. Difference of MC and data noises CTF Meeting 10/7/02

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