Renormalization-group improved calculation of top-quark production near threshold.
Phys Rev Lett
; 86(10): 1951-4, 2001 Mar 05.
Article
em En
| MEDLINE
| ID: mdl-11289828
ABSTRACT
The top-quark cross section close to threshold in e(+)e(-) annihilation is computed including the summation of logarithms of the velocity at next-to-next-to-leading-logarithmic order in QCD. The remaining theoretical uncertainty in the normalization of the total cross section is at the few-percent level, an order of magnitude smaller than in previous next-to-next-to-leading order calculations. This uncertainty is smaller than the effects of a light standard-model Higgs boson.
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MEDLINE
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En
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Phys Rev Lett
Ano de publicação:
2001
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Article
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