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PreprintCC BY 4.0arXiv

Hadronic light-by-light scattering in AdS/QCD and the muon g−2: tensor meson contributions

  • Jonas Mager
  • Luigi Cappiello
  • Josef Leutgeb
  • Anton Rebhan
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Abstract

We briefly review the predictions of holographic QCD in hard-wall AdS/QCD models for the contribution of pseudoscalars and axial-vector mesons to the hadronic light-by-light amplitude and consequently to the muon anomalous magnetic moment, which allows one to satisfy the Melnikov-Vainshtein constraint in a purely hadronic model. Moreover, we discuss the role of tensor mesons in satisfying the remaining short-distance constraints, and provide details for a minimal model of tensor mesons that turns out to agree remarkably well with available data from BELLE as well as preliminary low-Q2 data from BESIII. In an appendix, we also provide analytical results for the short-distance limits in hQCD and compare with the leading-order OPE result as given by the massless quark loop.

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Cite

BibTeXRIS
BibTeX
@misc{mager2026hadronic,
  title = {{Hadronic light-by-light scattering in AdS/QCD and the muon $g-2$: tensor meson contributions}},
  author = {Jonas Mager and Luigi Cappiello and Josef Leutgeb and Anton Rebhan},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2609.39720},
  eprint = {2609.39720},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2609.39720},
  note = {CC BY 4.0},
}
RIS
TY  - UNPB
TI  - Hadronic light-by-light scattering in AdS/QCD and the muon g−2: tensor meson contributions
AU  - Jonas Mager
AU  - Luigi Cappiello
AU  - Josef Leutgeb
AU  - Anton Rebhan
PY  - 2026
DA  - 2026/10/14
PB  - arXiv
DO  - 10.48550/arxiv.2609.39720
UR  - https://arxiv.org/abs/2609.39720
AB  - We briefly review the predictions of holographic QCD in hard-wall AdS/QCD models for the contribution of pseudoscalars and axial-vector mesons to the hadronic light-by-light amplitude and consequently to the muon anomalous magnetic moment, which allows one to satisfy the Melnikov-Vainshtein constraint in a purely hadronic model. Moreover, we discuss the role of tensor mesons in satisfying the remaining short-distance constraints, and provide details for a minimal model of tensor mesons that turns out to agree remarkably well with available data from BELLE as well as preliminary low-Q^2 data from BESIII. In an appendix, we also provide analytical results for the short-distance limits in hQCD and compare with the leading-order OPE result as given by the massless quark loop.
ER  -