# Tests of QED with Multi-Photonic Final States

Source: [Tests of QED with Multi-Photonic Final States](<https://www.sota2.com/research/paper/68fa36411e209131ce8a85f6>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-24T21:44:03.328Z

Authors: K. Sachs

Published: 2001-04-30T14:58:54.000Z

## Abstract

In the Standard Model the process e+e- -\> gamma-gamma is fully described by QED. Measurements of the differential cross-sections from the four LEP experiments are compared to the QED expectation and limits are set on parameters describing physics beyond the Standard Model. Three-photon events are used for a direct search for a photonically decaying resonance produced together with a photon.

## Recorded benchmark results

A research result applies to its stated dataset, split, metric and evaluation configuration. Compare like-for-like settings, preserve the metric's unit and direction, and distinguish paper-reported results from independent reproduction. The best result recorded here is not a claim of exhaustive, current global coverage.

## Original sources and implementation

[Original paper](<https://arxiv.org/abs/hep-ex/0104052>)

[PDF](<https://arxiv.org/pdf/hep-ex/0104052.pdf>)