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ID: 545115.0, MPI für Physik / MPI für Physik
MSbar Charm Mass from Charmonium Sum Rules with Contour Improvement
Authors:
Date of Publication (YYYY-MM-DD):2004
Title of Journal:Physics Letters B
Journal Abbrev.:Phys.Lett.B
Issue / Number:594
Start Page:127
End Page:134
Audience:Not Specified
Intended Educational Use:No
Abstract / Description:A detailed error analysis is carried out for the determination of the MSbar charm quark mass $\bar m_c(\bar m_c)$ from moments at order alpha_s^2 of the charm cross section in e^+e^- annihilation. To estimate the theoretical uncertainties the renormalization scale is implemented in various ways including energy-dependent functions, which lead to contour-improved'' predictions. We obtain $\bar m_c(\bar m_c)=1.29\pm 0.07$ GeV which contains a substantial theoretical uncertainty.
Classification / Thesaurus:Phenomenology of High Energy Physics
Comment of the Author/Creator:13 pages, latex, 1 postscript figures included
External Publication Status:published
Document Type:Article
Communicated by:N.N.
Affiliations:
Identifiers:
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