Fyodor V. Tkachov

An upper limit on electron antineutrino mass from Troitsk experiment

An electron antineutrino mass has been measured in tritium

Jets and quantum field theory

\ensuremath{\beta}

Algebraic algorithms for multiloop calculations. The First 15 years. What's next?

decay in the Troitsk

The O(αs3) QCD correction to the lowest moment of the longitudinal structure function in deep inelastic electron-nucleon scattering

\ensuremath{\nu}

Heavy-to-Light-Quark Decays with Two-Loop Accuracy

-mass experiment. The setup consists of a windowless gaseous tritium source and an electrostatic electron spectrometer. The whole data set acquired from 1994 to 2004 was reanalyzed. A thorough selection of data with the reliable experimental conditions has been performed. We checked every known systematic effect and obtained the following experimental estimate for neutrino mass squared

The limit mq→0 of perturbative QCD

{m}_{\ensuremath{\nu}}^{2}=\ensuremath{-}0.67\ifmmode\pm\else\textpm\fi{}2.53\text{ }\text{ }{\mathrm{eV}}^{2}

A THEORY OF JET DEFINITION

. This gives an experimental upper sensitivity limit of

Measurement of the electron antineutrino mass in tritium beta decay in the Troitsk nu-mass experiment

{m}_{\ensuremath{\nu}}l2.2\text{ }\text{ }\mathrm{eV}

The electromagnetic dipole operator effect on B -> Xs gamma at O(alpha_s^2)

, 95% C.L. and upper limit estimates

Towards systematic near-threshold calculations in perturbative QFT

{m}_{\ensuremath{\nu}}l2.12\text{ }\text{ }\mathrm{eV}