====== TTP07-09 Precise Charm and Bottom quark masses ======
 
 
   <hidden TTP07-09  Precise Charm and Bottom quark masses > New data for the total cross section 
 &sigma;(e^+e^- &rarr; hadrons) in the charm and bottom 
 threshold region are combined with an improved theoretical analysis, 
 which includes recent four-loop calculations, to determine the
 short distance \overline{MS} charm and bottom quark masses.
 The final result for the \overline{MS}-masses,
 m_c(3 GeV)=0.986(13) GeV and m_b(10 GeV)=3.609(25) GeV is 
 consistent with but significantly more precise than a similar 
 previous study.
 </hidden>
|**Johann H. K&uuml;hn, Matthias Steinhauser and Christian Sturm**  | 
|**      Talk given at 42nd Rencontres de Moriond on QCD and Hadronic Interactions, La Thuile, Italy, 17-24 Mar 2007 **  |
| {{preprints:2007:ttp07-09.pdf|PDF}} {{preprints:2007:ttp07-09.ps|PostScript}} [[http://arxiv.org/abs/0705.2335|arXiv]]   |
| |