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VecAmpFit: vectorized amplitude-analysis fitting library

Data Analysis, Statistics and Probability 2026-03-23 v1 High Energy Physics - Experiment
Authors: K. Chilikin
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Abstract

A new library VecAmpFit for multidimensional amplitude analyses in high-energy physics has been developed for an ongoing amplitude analysis at Belle II experiment. It includes a fitter performing likelihood calculation and explicitly-vectorized subprograms for amplitude implementation. The fitter supports explicit gradient calculation and simultaneous fitting of multiple data sets.

Cite

@article{arxiv.2603.20066,
  title  = {VecAmpFit: vectorized amplitude-analysis fitting library},
  author = {K. Chilikin},
  journal= {arXiv preprint arXiv:2603.20066},
  year   = {2026}
}

Comments

64 pages, 9 figures, submitted to Computer Physics Communications

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R2 v1 2026-07-01T11:29:57.822Z