SciPost Submission Page
Disperon QED
by Yizhou Fang, Sophie Kollatzsch, Marco Rocco, Adrian Signer, Yannick Ulrich, Max Zoller
Submission summary
| Authors (as registered SciPost users): | Sophie Kollatzsch · Marco Rocco · Adrian Signer · Yannick Ulrich |
| Submission information | |
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| Preprint Link: | https://arxiv.org/abs/2512.10709v1 (pdf) |
| Code repository: | https://gitlab.com/mule-tools/mcmule |
| Data repository: | https://gitlab.com/mule-tools/user-library |
| Date submitted: | Dec. 16, 2025, 3:56 p.m. |
| Submitted by: | Sophie Kollatzsch |
| Submitted to: | SciPost Physics |
| Ontological classification | |
|---|---|
| Academic field: | Physics |
| Specialties: |
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| Approaches: | Theoretical, Computational, Phenomenological |
Abstract
We present disperon QED, a method to deal with data input in loop processes in Monte Carlo codes. It relies on dispersion relations, automated tools such as OpenLoops, effective field theory methods and a threshold subtraction. We motivate this method and apply it to the process $ee\to\pi\pi$ in McMule to deal with hadronic vacuum polarisation insertions in two-loop contributions as well as the vector form factor of the pion within the form-factor scalar QED approximation. The generality of this method for more complicated processes is emphasised.
Author indications on fulfilling journal expectations
- Provide a novel and synergetic link between different research areas.
- Open a new pathway in an existing or a new research direction, with clear potential for multi-pronged follow-up work
- Detail a groundbreaking theoretical/experimental/computational discovery
- Present a breakthrough on a previously-identified and long-standing research stumbling block
Current status:
In refereeing