$π\to lνγ$ Form Factors at Two-loop

Details $π\to lνγ$ Form Factors at Two-loop $π\to lνγ$ Form Factors at Two-loop

1996-10-07

arxiv.org/abs/hep-ph/9610269v2

Nucl.Phys. B489 (1997) 387-404

Physics

High Energy Physics

High Energy Physics - Phenomenology

Added cut-off dependence discusion, misprints corrected

Scientific paper

10.1016/S0550-3213(97)00069-2

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

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