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Jet Intercalibration at the ATLAS Experiment: Uncertainty and Consistency Evaluation

Jet Intercalibration at the ATLAS Experiment: Uncertainty and Consistency Evaluation

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The current episode discusses a research paper from the ATLAS Collaboration concerning the evaluation of statistical uncertainties in the jet η-intercalibration method for the ATLAS experiment at CERN's Large Hadron Collider. The paper, identified as ATL-PHYS-PUB-2025-027, explains a new approach utilising the bootstrap method to determine calibration factor uncertainties and their correlations more accurately. This innovative technique is compared against previous methods, with figures illustrating distributions, uncertainty ratios, and correlation matrices. Additionally, the paper introduces a method for quantifying the statistical compatibility of jet observables within the calibration procedure, employing a pull statistic to assess robustness.


Links: https://cds.cern.ch/record/2935135/files/ATL-PHYS-PUB-2025-027.pdf
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