Mitigating Large Background in Jet Substructure Observables

We discuss a new approach for jet physics analysis by using subtraction between cumulants of jet substructure observables. The subtracted cumulants are insensitive to soft-particle background uncorrelated with the hard process and allow comparisons between theoretical results and experimental measur...

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Hauptverfasser: Kang, Daekyoung, Chien, Yang-Ting, Lee, Kyle, Makris, Yiannis
Format: Tagungsbericht
Sprache:eng
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Zusammenfassung:We discuss a new approach for jet physics analysis by using subtraction between cumulants of jet substructure observables. The subtracted cumulants are insensitive to soft-particle background uncorrelated with the hard process and allow comparisons between theoretical results and experimental measurements without the complication of soft background like underlying and pile-up events. We find our method using jet mass cumulants efficiently eliminates the background in Monte Carlo simulations and ATLAS jet mass measurements and they show a good agreement with our analytic calculations performed using soft-collinear effective theory.
ISSN:2100-014X
2101-6275
2100-014X
DOI:10.1051/epjconf/202023505002