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| — | preprints:2008:ttp08-22 [2016/03/15 20:38] (current) – created - external edit 127.0.0.1 |
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| | ====== TTP08-22 Multi-Loop Calculations, Quark Masses and the Strong Coupling Constant ====== |
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| | <hidden TTP08-22 Multi-Loop Calculations, Quark Masses and the Strong Coupling Constant > The impact of multi-loop calculations on precise determinations of charm- and bottom-quark masses |
| | and the strong coupling constant is discussed. Recent $N^3LO$ calculations, combined with new |
| | precision data, lead to a significant reduction of the errors. The results of these analyses, |
| | $m_c(3~\mbox{GeV}) = 0.986(13)~\mbox{GeV}$, $m_b(10~\mbox{GeV}) = 3.609(19)~\mbox{GeV}$ |
| | and $\alpha_s(M_Z)=0.1198(15)$ |
| | constitute the most precise and presently only $N^3LO$ determinations of these fundamental quantities. |
| | </hidden> |
| | |**J.H. Kühn** | |
| | |** Nucl. Phys. B (Proc.Suppl.), 183, 97-102, 2008 Contribution to "Loops and Legs in Quantum Field Theory, 9 th DESY Workshop on Elementary Particle Theory ** | |
| | | {{preprints:2008:ttp08-22.pdf|PDF}} {{preprints:2008:ttp08-22.ps|PostScript}} | |
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