TTP97-24 |V_cb| from semileptonic B decays with two-loop QCD accuracy
TTP97-24 |V_cb| from semileptonic B decays with two-loop QCD accuracy
TTP97-24 |V_cb| from semileptonic B decays with two-loop QCD accuracy
Recent progress in calculating ${\cal O}(\alpha _s ^2)$ corrections
to inclusive and exclusive semileptonic $b \to c$ transitions
is reviewed. The impact of these corrections on the $|V_{cb}|$\
determination from both inclusive and exclusive $B$ decays is
discussed.
Andrzej Czarnecki and Kirill Melnikov
Proceedings of the fifth conference ``Beyond the Standard Model'', May 1997, Balholm, Norway; published by the American Institute of Physics, AIP conference proceedings 415, 1997.