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The Next-to-Leading Order Corrections to Top Quark Decays to Heavy Quarkonia

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arxiv 1003.5360 v2 pith:THCN2YFE submitted 2010-03-28 hep-ph

The Next-to-Leading Order Corrections to Top Quark Decays to Heavy Quarkonia

classification hep-ph
keywords calculationcorrectionsnext-to-leadingorderquarkaccuracyboundchromodynamics
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The decay widths of top quark to S-wave $b\bar{c}$ and $b\bar{b}$ bound states are evaluated at the next-to-leading(NLO) accuracy in strong interaction. Numerical calculation shows that the NLO corrections to these processes are remarkable. The quantum chromodynamics(QCD) renormalization scale dependence of the results are obviously depressed, and hence the uncertainties lying in the leading order calculation are reduced.

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