Speaker
Dr
Andrei Kataev
(Institute for Nuclear Research of the Russian Academy of Sciences)
Description
The semi-analytical expressions for the flavour-dependence of the O(\alpha_s^4) QCD correction between pole and running heavy quark masses is obtained using the least square method. The results are compared with the estimates obtained with the help of different approaches. The asymptotic structure of the presnted perturbative series is discussed/ The necessity of performing extra analytical calcultions to decrease fixed theoretcal uncertainties are emphasized. The should be of particular importance in the case of the determination of top-quark mass value.
Author
Dr
Andrei Kataev
(Institute for Nuclear Research of the Russian Academy of Sciences)
Co-author
Victor Molokoedov
(Moscow Institute of Physics and Technology)
