3 papers
hep-ph1996
Improved Evaluation of the Next-Next-To-Leading Order QCD Corrections to the e+e- Annihilation Into Hadrons
P. A. Raczka, A. Szymacha
The next-next-to-leading order QCD corrections to the e+e- annihilation into hadrons are considered. The stability of the predictions with respect to change of the renormalization…
hep-ph1994
Improved analysis of the renormalization scheme ambiguities in the QCD corrections to the semileptonic decay of the tau lepton
Piotr A. Raczka, Andrzej Szymacha
The perturbative QCD corrections to the semileptonic decay width of the tau lepton are evaluated in the next-next-to-leading order from the contour integral representation in vario…
hep-ph1993
Experimental Constraints on the Neutrino Oscillations and a Simple Model of Three Flavour Mixing
Piotr A. Rcaczka, Andrzej Szymacha, Stanisław Tatur
A simple model of the neutrino mixing is considered, which contains only one right-handed neutrino field, coupled via the mass term to the three usual left-handed fields. This is a…