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Subtracted Cumulants: Mitigating Large Background in Jet Substructure
- Source :
- Physical Review
- Publication Year :
- 2018
- Publisher :
- arXiv, 2018.
-
Abstract
- We introduce a new approach for jet physics studies using subtracted cumulants of jet substructure observables, which are shown to be insensitive to contributions from soft-particle emissions uncorrelated with the hard process. Therefore, subtracted cumulants allow comparisons between theoretical calculations and experimental measurements without the complication of large background contaminations such as underlying and pileup events in hadron collisions. We test our method using subtracted jet mass cumulants by comparing Monte Carlo simulations to analytic calculations performed using soft-collinear effective theory. We find that, for proton-proton collisions, the method efficiently eliminates contributions from multiparton interactions and pileup events. We also find within theoretical uncertainty that our analytic calculations are in good agreement with the subtracted cumulants calculated by using ATLAS jet mass measurements.
- Subjects :
- Physics
Jet (fluid)
010308 nuclear & particles physics
Astrophysics::High Energy Astrophysical Phenomena
Hadron
Monte Carlo method
FOS: Physical sciences
Observable
7. Clean energy
01 natural sciences
High Energy Physics - Experiment
Computational physics
High Energy Physics - Phenomenology
High Energy Physics - Experiment (hep-ex)
medicine.anatomical_structure
High Energy Physics - Phenomenology (hep-ph)
13. Climate action
Atlas (anatomy)
0103 physical sciences
medicine
Effective field theory
Substructure
010306 general physics
Cumulant
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- Physical Review
- Accession number :
- edsair.doi.dedup.....a85b4d07c49df99c5a93b457e8bbe36c
- Full Text :
- https://doi.org/10.48550/arxiv.1812.06977