Details

Autor(en) / Beteiligte

• Chetyrkin, K. G.
• Kühn, J. H.
• Maier, A.
• Maierhöfer, P.
• Marquard, P.
• Steinhauser, M.
• Sturm, C.

Titel

Precise charm- and bottom-quark masses: Theoretical and experimental uncertainties

Ist Teil von

• Theoretical and mathematical physics, 2012-02, Vol.170 (2), p.217-228

Ort / Verlag

Dordrecht: SP MAIK Nauka/Interperiodica

Erscheinungsjahr

2012

Link zum Volltext

Quelle

SpringerLink (Online service)

Beschreibungen/Notizen

• We consider recent theoretical and experimental improvements in determining charm- and bottom-quark masses. We present a new, improved evaluation of the contribution of the gluon condensate 〈α s G 2 /π〉 to the charm mass determination and a detailed study of potential uncertainties in the continuum cross section for production, together with a study of the parametric uncertainty from the α s -dependence of our results. The final results, m c (3 GeV) = 986(13) MeV and m b (m b ) = 4163(16) MeV, together with the closely related lattice determination m c (3 GeV) = 986(6) MeV, currently represent the most precise determinations of these two fundamental standard-model parameters. We critically analyze the theoretical and experimental uncertainties.