M. V. Chizhov
Published 2004-11-07Version 1
The recent results of the PIBETA experiment strongly suggest the presence of a non-(V-A) anomalous interaction in the radiative pion decay. The same interaction should inevitably contribute to the neutron decay and in particular it should affect the V_ud determination. This paper is dedicated to the prediction of the eventual discrepancy in V_ud extracted from the super-allowed Fermi transitions and from the polarized neutron decay.
Comments: 8 pages, 1 figure included
Determination of fragmentation functions and their uncertainties
A new determination of α_s from hadronic τ decays
Possible duality violations in tau decay and their impact on the determination of alpha_s
