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$\pi \to l\nu \gamma$ Form Factors at Two-loop

High Energy Physics - Phenomenology 2016-09-06 v2
Authors: J. Bijnens , P. Talavera
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Abstract

Within Chiral Perturbation Theory (CHPT) we compute the form factors A, V and γ=A/V\gamma = A/V in the π→νlγ\pi \to \nu l \gamma decay to O(p6)O(p^6). A and γ\gamma obtain corrections of order 25%.

Keywords

form factors chiral perturbation theory

Cite

@article{arxiv.hep-ph/9610269,
  title  = {$\pi \to l\nu \gamma$ Form Factors at Two-loop},
  author = {J. Bijnens and P. Talavera},
  journal= {arXiv preprint arXiv:hep-ph/9610269},
  year   = {2016}
}

Comments

Added cut-off dependence discusion, misprints corrected

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