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On the Radiative Pion Decay
Rene Unterdorfer, Hannes Pichl
A reanalysis of the radiative pion decay together with the calculation of the radiative corrections within chiral perturbation theory (CHPT) is performed. The amplitude of this dec…
Generating Functional for Strong and Nonleptonic Weak Interactions
R. Unterdorfer, G. Ecker
The generating functional for Green functions of quark currents is given in closed form to next-to-leading order in the low-energy expansion for chiral SU(3), including one-loop am…
The rare decay KL -> pi0 mu+ mu- within the SM
Gino Isidori, Christopher Smith, Rene Unterdorfer
We present an updated analysis of the rare decay within the Standard Model. In particular, we present the first complete calculation of the two-photon CP-…
On the short-distance constraints from K_{L,S} -> mu^+ mu^-
Gino Isidori, Rene Unterdorfer
Motivated by new precise results on several decays, sensitive to the form factor, we present a new analysis of the long-distance amplitude base…