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Title: Metric Space of Collider Events

Abstract

When are two collider events similar? Despite the simplicity and generality of this question, there is no established notion of the distance between two events. To address this question, we develop a metric for the space of collider events based on the earth mover’s distance: the “work” required to rearrange the radiation pattern of one event into another. We expose interesting connections between this metric and the structure of infrared- and collinear-safe observables, providing a novel technique to quantify event modifications due to hadronization, pileup, and detector effects. We showcase how this metrization unlocks powerful new tools for analyzing and visualizing collider data without relying upon a choice of observables. More broadly, this framework paves the way for data-driven collider phenomenology without specialized observables or machine learning models.

Authors:
; ;
Publication Date:
Research Org.:
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP); USDOE Office of Science (SC), Nuclear Physics (NP); Simons Foundation
OSTI Identifier:
1545440
Alternate Identifier(s):
OSTI ID: 1630639
Grant/Contract Number:  
SC0012567; SC0011090; SC0019128
Resource Type:
Published Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Name: Physical Review Letters Journal Volume: 123 Journal Issue: 4; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Komiske, Patrick T., Metodiev, Eric M., and Thaler, Jesse. Metric Space of Collider Events. United States: N. p., 2019. Web. doi:10.1103/PhysRevLett.123.041801.
Komiske, Patrick T., Metodiev, Eric M., & Thaler, Jesse. Metric Space of Collider Events. United States. doi:10.1103/PhysRevLett.123.041801.
Komiske, Patrick T., Metodiev, Eric M., and Thaler, Jesse. Fri . "Metric Space of Collider Events". United States. doi:10.1103/PhysRevLett.123.041801.
@article{osti_1545440,
title = {Metric Space of Collider Events},
author = {Komiske, Patrick T. and Metodiev, Eric M. and Thaler, Jesse},
abstractNote = {When are two collider events similar? Despite the simplicity and generality of this question, there is no established notion of the distance between two events. To address this question, we develop a metric for the space of collider events based on the earth mover’s distance: the “work” required to rearrange the radiation pattern of one event into another. We expose interesting connections between this metric and the structure of infrared- and collinear-safe observables, providing a novel technique to quantify event modifications due to hadronization, pileup, and detector effects. We showcase how this metrization unlocks powerful new tools for analyzing and visualizing collider data without relying upon a choice of observables. More broadly, this framework paves the way for data-driven collider phenomenology without specialized observables or machine learning models.},
doi = {10.1103/PhysRevLett.123.041801},
journal = {Physical Review Letters},
number = 4,
volume = 123,
place = {United States},
year = {2019},
month = {7}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1103/PhysRevLett.123.041801

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Cited by: 5 works
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