Analysis note: measurement of thrust and track energy-energy correlator in $e^+e^-$ collisions at 91.2 GeV with DELPHI open data

Fuente: arXiv
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Autori principali: Zhang, Jingyu, Sheng, Tzu-An, Chen, Yu-Chen, Bossi, Hannah, Badea, Anthony, Baty, Austin, McGinn, Chris, Lee, Yen-Jie, Chen, Yi
Natura: Preprint
Pubblicazione: 2025
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author Zhang, Jingyu
Sheng, Tzu-An
Chen, Yu-Chen
Bossi, Hannah
Badea, Anthony
Baty, Austin
McGinn, Chris
Lee, Yen-Jie
Chen, Yi
author_facet Zhang, Jingyu
Sheng, Tzu-An
Chen, Yu-Chen
Bossi, Hannah
Badea, Anthony
Baty, Austin
McGinn, Chris
Lee, Yen-Jie
Chen, Yi
contents Recent theoretical developments, as well as experimental measurements at hadron collisions, have renewed interest in studying event shape variables in $e^+e^-$ collisions. We present a measurement of thrust and track-based energy-energy correlator in $e^+e^-$ collisions at center-of-mass energy of 91.2 GeV, using newly released open data from the DELPHI experiment. The event shapes, measured with unprecedented resolution and precision, are compared to various Monte Carlo and analytic predictions. Leveraging DELPHI's unique detector geometry and reconstruction capabilities, the track energy-energy correlator measurement provides data with the highest angular resolution, offering critical inputs for precision tests of QCD in both collinear and back-to-back limits. This note presents the first physics analysis using DELPHI open data and establishes benchmarks necessary for future studies exploiting this legacy dataset.
format Preprint
id arxiv_https___arxiv_org_abs_2510_18762
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Analysis note: measurement of thrust and track energy-energy correlator in $e^+e^-$ collisions at 91.2 GeV with DELPHI open data
Zhang, Jingyu
Sheng, Tzu-An
Chen, Yu-Chen
Bossi, Hannah
Badea, Anthony
Baty, Austin
McGinn, Chris
Lee, Yen-Jie
Chen, Yi
High Energy Physics - Experiment
High Energy Physics - Phenomenology
Nuclear Experiment
Recent theoretical developments, as well as experimental measurements at hadron collisions, have renewed interest in studying event shape variables in $e^+e^-$ collisions. We present a measurement of thrust and track-based energy-energy correlator in $e^+e^-$ collisions at center-of-mass energy of 91.2 GeV, using newly released open data from the DELPHI experiment. The event shapes, measured with unprecedented resolution and precision, are compared to various Monte Carlo and analytic predictions. Leveraging DELPHI's unique detector geometry and reconstruction capabilities, the track energy-energy correlator measurement provides data with the highest angular resolution, offering critical inputs for precision tests of QCD in both collinear and back-to-back limits. This note presents the first physics analysis using DELPHI open data and establishes benchmarks necessary for future studies exploiting this legacy dataset.
title Analysis note: measurement of thrust and track energy-energy correlator in $e^+e^-$ collisions at 91.2 GeV with DELPHI open data
topic High Energy Physics - Experiment
High Energy Physics - Phenomenology
Nuclear Experiment
url https://arxiv.org/abs/2510.18762