Efficient lattice QCD computation of radiative-leptonic-decay form factors at multiple positive and negative photon virtualities

Davide Giusti, Christopher F. Kane, Christoph Lehner +2

In previous work Phys. Rev. D 107, 074507 (2023), we showed that form factors for radiative leptonic decays of pseudoscalar mesons can be determined efficiently and with high preci…