====== TTP04-22 Recent Developments in the Treatment of Heavy Quarks ======
 
 
<hidden TTP04-22  Recent Developments in the Treatment of Heavy Quarks >   We discuss new results obtained for the description of a system of
   two heavy
   quarks close to the production threshold. Special emphasis is put
   on the resummation of logarithms in the quark velocity.
   As physical applications we discuss the determination of the
   mass of the $\eta_b$ meson and the ratio of the photon mediated
   production or annihilation rates of spin triplet and spin singlet
   heavy quarkonium states.
 </hidden>
|**M. Steinhauser**  | 
|**  AIP Conf.Proc  756 357-359 2005  **  |
| {{preprints:2004:ttp04-22.pdf|PDF}} {{preprints:2004:ttp04-22.ps|PostScript}}   |
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