Renormalization-group improved calculation of top-quark production near threshold

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 l...

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Detalles Bibliográficos
Autores principales: Hoang, A.H., Manohar, A.V., Stewart, Iain W., Teubner, T.
Lenguaje:eng
Publicado: 2000
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1103/PhysRevLett.86.1951
http://cds.cern.ch/record/477884
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author Hoang, A.H.
Manohar, A.V.
Stewart, Iain W.
Teubner, T.
author_facet Hoang, A.H.
Manohar, A.V.
Stewart, Iain W.
Teubner, T.
author_sort Hoang, A.H.
collection CERN
description 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.
id cern-477884
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2000
record_format invenio
spelling cern-4778842023-03-30T02:14:53Zdoi:10.1103/PhysRevLett.86.1951http://cds.cern.ch/record/477884engHoang, A.H.Manohar, A.V.Stewart, Iain W.Teubner, T.Renormalization-group improved calculation of top-quark production near thresholdParticle Physics - PhenomenologyThe 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.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.hep-ph/0011254CERN-TH-2000-340UCSD-PTH-00-25PITHA-00-28CERN-TH-2000-340UCSD-PTH-2000-25PITHA-2000-28oai:cds.cern.ch:4778842000-11-20
spellingShingle Particle Physics - Phenomenology
Hoang, A.H.
Manohar, A.V.
Stewart, Iain W.
Teubner, T.
Renormalization-group improved calculation of top-quark production near threshold
title Renormalization-group improved calculation of top-quark production near threshold
title_full Renormalization-group improved calculation of top-quark production near threshold
title_fullStr Renormalization-group improved calculation of top-quark production near threshold
title_full_unstemmed Renormalization-group improved calculation of top-quark production near threshold
title_short Renormalization-group improved calculation of top-quark production near threshold
title_sort renormalization-group improved calculation of top-quark production near threshold
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1103/PhysRevLett.86.1951
http://cds.cern.ch/record/477884
work_keys_str_mv AT hoangah renormalizationgroupimprovedcalculationoftopquarkproductionnearthreshold
AT manoharav renormalizationgroupimprovedcalculationoftopquarkproductionnearthreshold
AT stewartiainw renormalizationgroupimprovedcalculationoftopquarkproductionnearthreshold
AT teubnert renormalizationgroupimprovedcalculationoftopquarkproductionnearthreshold

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