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hep-lat2023★ 1 cited
Spectral-function determination of complex electroweak amplitudes with lattice QCD
R. Frezzotti, G. Gagliardi, V. Lubicz +3
We present a novel method to determine on the lattice both the real and imaginary parts of complex electroweak amplitudes involving two external currents and a single hadron or the…
hep-lat2023
Lattice calculation of the meson radiative form factors over the full kinematical range
R. Frezzotti, G. Gagliardi, V. Lubicz +6
We compute the structure-dependent axial and vector form factors for the radiative leptonic decays , where is a charged lepton, as functions of the energ…