INFN - Laboratori Nazionali di Frascati, May 1995
From: The Second DAFNE Physics Handbook
Chapter 7: Leptonic and Semileptonic Kaon Decays
Eds. L. Maiani, G. Pancheri, N. Paver
Supported by the INFN, by the EC under the HCM contract number CHRX-CT920026 and by the authors home institutions.
Decays
INFN - Laboratori Nazionali di Frascati
P.O. Box 13
00044 Frascati (Roma)
Italy
decays to the order 
. We perform a matching
calculation, using a specific model with vector meson dominance in the long
distance part and the parton model in the short distance part. By considering
the dependence on the matching scale and on the hadronic parameters, and by
comparing with the leading model independent predictions, we scrutinize the
model dependence of the results.