Qcd Calculations of Heavy Quarkonium States *
نویسنده
چکیده
Recent results on the QCD analysis of bound states of heavy ¯ qq quarks are reviewed, paying attention to what can be derived from the theory with a reasonable degree of rigour. We report a calculation of ¯ bc bound states; a very precise evaluation of b, c quark masses from quarkonium spectrum; the NNLO evaluation of Υ → e + e − ; and a discussion of power corrections. For the b quark pole mass we get, including O(m
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تاریخ انتشار 2000