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Verlagsausgabe
DOI: 10.5445/IR/1000076945
Originalveröffentlichung
DOI: 10.1016/j.physletb.2017.10.054

On the ultimate uncertainty of the top quark pole mass

Beneke, Martin; Marquard, Peter; Nason, Paolo; Steinhauser, Matthias

Abstract:
We combine the known asymptotic behaviour of the QCD perturbation series expansion, which relates the pole mass of a heavy quark to the MSmass, with the exact series coefficients up to the four-loop order to determine the ultimate uncertainty of the top-quark pole mass due to the renormalon divergence. We perform extensive tests of our procedure by varying the number of colours and flavours, as well as the scale of the strong coupling and the MSmass. Including an estimate of the internal bottom and charm quark mass effect, we conclude that this uncertainty is around 110MeV. We further estimate the additional contribution to the mass relation from the five-loop correction and beyond to be around 300MeV.


Zugehörige Institution(en) am KIT Institut für Theoretische Teilchenphysik (TTP)
Publikationstyp Zeitschriftenaufsatz
Jahr 2017
Sprache Englisch
Identifikator ISSN: 0370-2693, 1873-2445
URN: urn:nbn:de:swb:90-769458
KITopen ID: 1000076945
Erschienen in Physics letters / B
Band 775
Seiten 63-70
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