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


Chetyrkin, K G; Kühn, J H; Maier, A; Maierhöfer, P; Marquard, P; Steinhauser, M; Sturm, C (2012). Precise charm- and bottom-quark masses: Theoretical and experimental uncertainties. Theoretical and Mathematical Physics, 170(2):217-228.

Abstract

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 bbar b production, together with a study of the parametric uncertainty from the α s -dependence of our results. The final results, mc(3 GeV) = 986(13) MeV and mb(mb) = 4163(16) MeV, together with the closely related lattice determination mc(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.

Abstract

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 bbar b production, together with a study of the parametric uncertainty from the α s -dependence of our results. The final results, mc(3 GeV) = 986(13) MeV and mb(mb) = 4163(16) MeV, together with the closely related lattice determination mc(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.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Language:English
Date:February 2012
Deposited On:22 Jan 2013 17:03
Last Modified:05 Apr 2016 16:21
Publisher:Springer
ISSN:0040-5779
Additional Information:The original publication is available at www.springerlink.com
Publisher DOI:https://doi.org/10.1007/s11232-012-0024-7

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