A.A.Penin

collaborators

2 papers

hep-ph1999

Sudakov logarithms in electroweak processes

J. H. Kühn, A. A. Penin

The dominant electroweak double logarithmic corrections to the process $e^{+} e^{-} \to f f ˉ$ at high energy are found in all orders of perturbation theory. In contrast to results in…

hep-ph1999

Comment on ``Next-to-next-to-leading order vacuum polarization function of heavy quark near threshold and sum rules for $b b ˉ$ system'' and ``Next-to-next-to-leading order relation between $R (e^{+} e^{-} \to b b ˉ)$ and $Γ_{sl} (b \to c l ν_{l})$ and precise determination of $∣ V_{c b} ∣$ ''

A. A. Penin, A. A. Pivovarov

The most recent recalculation of the two-loop correction to the static quark-antiquark potential gave the numerical value different from the previously known one. We comment on the…

Sudakov logarithms in electroweak processes

Comment on ``Next-to-next-to-leading order vacuum polarization function of heavy quark near threshold and sum rules for bbˉ system'' and ``Next-to-next-to-leading order relation between R(e+e−→bbˉ) and Γsl​(b→clνl​) and precise determination of ∣Vcb​∣''