The top cross section in hadronic collisions

We reexamine the top quark production cross section at the Tevatron and LHC, in the light of recent progress on the resummation of logarithmic soft gluon corrections. We find that resummation effects are much smaller than previously thought. We also compute Coulombic threshold effects, and find them...

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Detalles Bibliográficos
Autores principales: Catani, Stefano, Mangano, Michelangelo L., Nason, Paolo, Trentadue, Luca
Lenguaje:eng
Publicado: 1996
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1016/0370-2693(96)00387-5
http://cds.cern.ch/record/295403
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author Catani, Stefano
Mangano, Michelangelo L.
Nason, Paolo
Trentadue, Luca
author_facet Catani, Stefano
Mangano, Michelangelo L.
Nason, Paolo
Trentadue, Luca
author_sort Catani, Stefano
collection CERN
description We reexamine the top quark production cross section at the Tevatron and LHC, in the light of recent progress on the resummation of logarithmic soft gluon corrections. We find that resummation effects are much smaller than previously thought. We also compute Coulombic threshold effects, and find them negligible. We update the discussion of uncertainties due to scale dependence, the value of the strong coupling constant, and the parton density parametrization. Our current best estimate of the top production cross section at the Tevatron and its error is \sigma(\mt=175\,{\rm GeV})=4.75{+0.63\atop-0 .68}.
id cern-295403
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1996
record_format invenio
spelling cern-2954032023-03-14T18:58:59Zdoi:10.1016/0370-2693(96)00387-5http://cds.cern.ch/record/295403engCatani, StefanoMangano, Michelangelo L.Nason, PaoloTrentadue, LucaThe top cross section in hadronic collisionsParticle Physics - PhenomenologyWe reexamine the top quark production cross section at the Tevatron and LHC, in the light of recent progress on the resummation of logarithmic soft gluon corrections. We find that resummation effects are much smaller than previously thought. We also compute Coulombic threshold effects, and find them negligible. We update the discussion of uncertainties due to scale dependence, the value of the strong coupling constant, and the parton density parametrization. Our current best estimate of the top production cross section at the Tevatron and its error is \sigma(\mt=175\,{\rm GeV})=4.75{+0.63\atop-0 .68}.We reexamine the top quark production cross section at the Tevatron and LHC, in the light of recent progress on the resummation of logarithmic soft gluon corrections. We find that resummation effects are much smaller than previously thought. We also compute Coulombic threshold effects, and find them negligible. We update the discussion of uncertainties due to scale dependence, the value of the strong coupling constant, and the parton density parametrization. Our current best estimate of the top production cross section at the Tevatron and its error is $\sigma(\mt=175\,{\rm GeV})=4.75{+0.63\atop-0.68}$.We reexamine the top quark production cross section at the Tevatron and LHC, in the light of recent progress on the resummation of logarithmic soft gluon corrections. We find that resummation effects are much smaller than previously thought. We also compute Coulombic threshold effects, and find them negligible. We update the discussion of uncertainties due to scale dependence, the value of the strong coupling constant, and the parton density parametrization. Our current best estimate of the top production cross section at the Tevatron and its error is σ ( m t = 175 GeV) = 4.75 −0.62 +0.73 .hep-ph/9602208CERN-TH-96-21CERN-TH-96-021oai:cds.cern.ch:2954031996-02-01
spellingShingle Particle Physics - Phenomenology
Catani, Stefano
Mangano, Michelangelo L.
Nason, Paolo
Trentadue, Luca
The top cross section in hadronic collisions
title The top cross section in hadronic collisions
title_full The top cross section in hadronic collisions
title_fullStr The top cross section in hadronic collisions
title_full_unstemmed The top cross section in hadronic collisions
title_short The top cross section in hadronic collisions
title_sort top cross section in hadronic collisions
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/0370-2693(96)00387-5
http://cds.cern.ch/record/295403
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AT catanistefano topcrosssectioninhadroniccollisions
AT manganomichelangelol topcrosssectioninhadroniccollisions
AT nasonpaolo topcrosssectioninhadroniccollisions
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