====== TTP94-12 $R_{had}$ at  the $B$-factory ======
 
 
<hidden TTP94-12  $R_{had}$ at  the $B$-factory > A systematic theoretical evaluation of the cross section 
 for hadron production in electron-positron collisions 
 in the energy range  just below the $B$ meson threshold is 
 presented which includes charm and bottom mass effects and is 
 accurate to order $\as^3$. The corresponding   measurement in the 
 energy region several $GeV$ above the threshold is also discussed.
 </hidden>
|**K.G.Chetyrkin and J.H. K\"uhn**  | 
|** Phys. Lett. B342 356-361 1995  **  |
| {{preprints:1994:ttp94-12.pdf|PDF}} {{preprints:1994:ttp94-12.ps|PostScript}}   |
| |