Analysis note: one-point charge correlator with DELPHI Open Data

Jingyu Zhang; Yi Chen; Kyle Lee; Ian Moult; Cristian Baldenegro; Hannah Bossi; Yen-Jie Lee

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arXiv · 2608.15367

Analysis note: one-point charge correlator with DELPHI Open Data

Jingyu Zhang·Yi Chen·Kyle Lee·Ian Moult·Cristian Baldenegro·Hannah Bossi·Yen-Jie Lee

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Abstract

We present the first measurement of the one-point charge correlator, the angular flux of electric charge in hadronic final states, using DELPHI Open Data collected at LEP-1 at $\sqrt{s} = 91.2$~GeV during 1994 and 1995. The data, corrected for detector effects, exhibit a clear $\sin(2\theta)$ modulation, consistent with the parity-violating hadronic charge flow that the chiral structure of the $Z$ couplings imprints on the final state. The measurement demonstrates the experimental feasibility of the observable and establishes strategies for controlling associated detector effects, thereby motivating a new program to measure charge-flux observables. This note documents the experimental details supporting the companion experimental paper and the joint theory--experiment Letter.

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Jingyu Zhang, Yi Chen, Kyle Lee, Ian Moult, Cristian Baldenegro, Hannah Bossi, Yen-Jie Lee. 2026-08-15. Analysis note: one-point charge correlator with DELPHI Open Data. https://arxiv.org/abs/2608.15367

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