Improvement of Main Drift Chamber Monte-Carlo tuning model at BESIII
classification
⚛️ physics.ins-det
hep-ex
keywords
modelchamberdatadriftmainagreementbesiiidifference
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Based on real data, a new parameterized model of the Main Drift Chamber response is proposed. In this model, we tune the ratio of good hits and the residual distribution separately. The difference between simulation and data in track reconstruction efficiency reduces from 1% to 0.5%, and the momentum resolution agreement improves significantly.
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