Renormalisation scale uncertainty in the DIS 2+1 jet cross-section
| Autor: | Ingelman, G., Rathsman, J. |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 1994 |
| Předmět: |
electron p: deep inelastic scattering
renormalization: dependence electron p [deep inelastic scattering] strong interaction [coupling constant] jet [electroproduction] 314 GeV-cms jet: electroproduction deep inelastic scattering: electron p strong interaction: coupling constant factorization ddc:530 numerical calculations electroproduction [jet] channel cross section final state: (3jet) quantum chromodynamics: validity test (3jet) [final state] dependence [renormalization] validity test [quantum chromodynamics] final state [(3jet)] electroproduction: jet deep inelastic scattering [electron p] (3jet): final state coupling constant: strong interaction coupling constant [strong interaction] |
| DOI: | 10.3204/PUBDB-2022-07333 |
| Popis: | 26 pp. (1994). The deep inelastic scattering 2+1 jet cross- section is a useful observable for precision tests of QCD, e.g. measuring the strong coupling constant alpha(s). A consistent analysis requires a good understanding of the theoretical uncertainties and one of the most fundamental ones in QCD is due to the renormalization scheme and scale ambiguity. Different methods, which have been proposed to resolve the scale ambiguity, are applied to the 2+1 jet cross-section and the uncertainty is estimated. It is shown that the uncertainty can be made smaller by choosing the jet definition in a suitable way. |
| Databáze: | OpenAIRE |
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