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Production of heavy quarks and heavy quarkonia

Uncertainties in the next-to-leading-order calculations of heavy-quark (Q) production are investigated. Predictions for total cross sections, single-inclusive distributions of heavy quarks and heavy flavoured hadrons, as well as for Q\bar{Q} correlations, are compared with charm and bottom data. The...

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Autor principal: Schuler, Gerhard A.
Lenguaje:eng
Publicado: 1995
Materias:
Acceso en línea:https://dx.doi.org/10.1007/BF02906990
https://dx.doi.org/10.1007/s002880050177
http://cds.cern.ch/record/279889
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author Schuler, Gerhard A.
author_facet Schuler, Gerhard A.
author_sort Schuler, Gerhard A.
collection CERN
description Uncertainties in the next-to-leading-order calculations of heavy-quark (Q) production are investigated. Predictions for total cross sections, single-inclusive distributions of heavy quarks and heavy flavoured hadrons, as well as for Q\bar{Q} correlations, are compared with charm and bottom data. The description of heavy-quarkonium production requires a separation of the short-distance scale of Q\bar{Q} production, which is set by the heavy-quark mass from the longer-distance scales associated with the bound-state formation. Various factorization approaches are compared, in particular with respect to the different constraints imposed on the colour and angular-momentum states of the Q\bar{Q} pair(s) within a specific quarkonium state. Theoretical predictions are confronted with data on heavy-quarkonium production at fixed-target experiments and also at p\bar{p} colliders, where fragmentation gives the leading-twist cross section in 1/p_T^2 and 1/m^2 at high transverse momentum.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1995
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spelling cern-2798892020-07-23T02:50:24Zdoi:10.1007/BF02906990doi:10.1007/s002880050177http://cds.cern.ch/record/279889engSchuler, Gerhard A.Production of heavy quarks and heavy quarkoniaParticle Physics - PhenomenologyUncertainties in the next-to-leading-order calculations of heavy-quark (Q) production are investigated. Predictions for total cross sections, single-inclusive distributions of heavy quarks and heavy flavoured hadrons, as well as for Q\bar{Q} correlations, are compared with charm and bottom data. The description of heavy-quarkonium production requires a separation of the short-distance scale of Q\bar{Q} production, which is set by the heavy-quark mass from the longer-distance scales associated with the bound-state formation. Various factorization approaches are compared, in particular with respect to the different constraints imposed on the colour and angular-momentum states of the Q\bar{Q} pair(s) within a specific quarkonium state. Theoretical predictions are confronted with data on heavy-quarkonium production at fixed-target experiments and also at p\bar{p} colliders, where fragmentation gives the leading-twist cross section in 1/p_T^2 and 1/m^2 at high transverse momentum.Uncertainties in the next-to-leading-order calculations of heavy-quark ($Q$) production are investigated. Predictions for total cross sections, single-inclusive distributions of heavy quarks and heavy flavoured hadrons, as well as for $Q\bar{Q}$ correlations, are compared with charm and bottom data. The description of heavy-quarkonium production requires a separation of the short-distance scale of $Q\bar{Q}$ production, which is set by the heavy-quark mass from the longer-distance scales associated with the bound-state formation. Various factorization approaches are compared, in particular with respect to the different constraints imposed on the colour and angular-momentum states of the $Q\bar{Q}$ pair(s) within a specific quarkonium state. Theoretical predictions are confronted with data on heavy-quarkonium production at fixed-target experiments and also at $p\bar{p}$ colliders, where fragmentation gives the leading-twist cross section in $1/p_T~2$ and $1/m~2$ at high transverse momentum.hep-ph/9504242CERN-TH-95-75CERN-TH-95-075CERN-TH-95-75oai:cds.cern.ch:2798891995-04-06
spellingShingle Particle Physics - Phenomenology
Schuler, Gerhard A.
Production of heavy quarks and heavy quarkonia
title Production of heavy quarks and heavy quarkonia
title_full Production of heavy quarks and heavy quarkonia
title_fullStr Production of heavy quarks and heavy quarkonia
title_full_unstemmed Production of heavy quarks and heavy quarkonia
title_short Production of heavy quarks and heavy quarkonia
title_sort production of heavy quarks and heavy quarkonia
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1007/BF02906990
https://dx.doi.org/10.1007/s002880050177
http://cds.cern.ch/record/279889
work_keys_str_mv AT schulergerharda productionofheavyquarksandheavyquarkonia