Next-to-next-to-leading order QCD analysis of the Gross-Llewellyn Smith sum rule and the higher twist effects

We present the next-to-next-to-leading order QCD analysis of the Gross-Llewellyn Smith (GLS) sum rule in deep inelastic lepton-nucleon scattering, taking into account dimension-two, twist-four power correction. We discuss in detail the renormalization scheme dependence of the perturbative QCD approx...

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Detalles Bibliográficos
Autores principales: Chyla, Jiri, Kataev, Andrei L.
Lenguaje:eng
Publicado: 1992
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1016/0370-2693(92)91278-H
http://cds.cern.ch/record/557862
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author Chyla, Jiri
Kataev, Andrei L.
author_facet Chyla, Jiri
Kataev, Andrei L.
author_sort Chyla, Jiri
collection CERN
description We present the next-to-next-to-leading order QCD analysis of the Gross-Llewellyn Smith (GLS) sum rule in deep inelastic lepton-nucleon scattering, taking into account dimension-two, twist-four power correction. We discuss in detail the renormalization scheme dependence of the perturbative QCD approximations, propose a procedure for an approximate treatment of the quark mass threshold effects and compare the results of our analysis to the recent experimental data of the CCFR collaboration. From this comparison we extract the value of the strong coupling constant $\alpha_{s}^{nnl}(M_{Z},\overline{\rm MS})= 0.115\pm0.001(stat)\pm0.005(syst)\pm0.003(twist)\pm0.0005(scheme)$. We stress the importance of an accurate measurement of the GLS sum rule and in particular of its $Q^{2}$ dependence.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1992
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spelling cern-5578622020-07-23T02:45:41Zdoi:10.1016/0370-2693(92)91278-Hhttp://cds.cern.ch/record/557862engChyla, JiriKataev, Andrei L.Next-to-next-to-leading order QCD analysis of the Gross-Llewellyn Smith sum rule and the higher twist effectsParticle Physics - PhenomenologyWe present the next-to-next-to-leading order QCD analysis of the Gross-Llewellyn Smith (GLS) sum rule in deep inelastic lepton-nucleon scattering, taking into account dimension-two, twist-four power correction. We discuss in detail the renormalization scheme dependence of the perturbative QCD approximations, propose a procedure for an approximate treatment of the quark mass threshold effects and compare the results of our analysis to the recent experimental data of the CCFR collaboration. From this comparison we extract the value of the strong coupling constant $\alpha_{s}^{nnl}(M_{Z},\overline{\rm MS})= 0.115\pm0.001(stat)\pm0.005(syst)\pm0.003(twist)\pm0.0005(scheme)$. We stress the importance of an accurate measurement of the GLS sum rule and in particular of its $Q^{2}$ dependence.We present the next-to-next-to-leading order QCD analysis of the Gross-Llewellyn Smith (GLS) sum rule in deep inelastic lepton-nucleon scattering, taking into account dimension-two, twist-four power correction. We discuss in detail the renormalization scheme dependence of the perturbative QCD approximations, propose a procedure for an approximate treatment of the quark mass threshold effects and compare the results of our analysis to the recent experimental data of the CCFR collaboration. From this comparison we extract the value of the strong coupling constant $\alpha_{s}~{nnl}(M_{Z},\overline{\rm MS})= 0.115\pm0.001(stat)\pm0.005(syst)\pm0.003(twist)\pm0.0005(scheme)$. We stress the importance of an accurate measurement of the GLS sum rule and in particular of its $Q~{2}$ dependence.We present the next-to-next-to-leading order QCD analysis of the Gross-Llewellyn Smith (GLS) sum rule in deep inelastic lepton-nucleon scattering, taking into account dimension-two, twist-four power correction. We discuss in detail the renormalization scheme dependence of the perturbative QCD approximations, propose a procedure for an approximate treatment of the quark mass threshold effects and compare the results of our analysis to the recent experimental data of the CCFR Collaboration. From this comparison we extract the value of the strong coupling constant α s nnl (M z , MS ) = 0.115±0.001 (stat.) ±0.005 (syst.) ±0.003 (twist) ±0.0005 (scheme) . We stress the importance of an accurate measurement of the GLS sum rule and in particular of its Q 2 dependence.hep-ph/9209213CERN-TH-6604-92CERN-TH-6604-92oai:cds.cern.ch:5578621992
spellingShingle Particle Physics - Phenomenology
Chyla, Jiri
Kataev, Andrei L.
Next-to-next-to-leading order QCD analysis of the Gross-Llewellyn Smith sum rule and the higher twist effects
title Next-to-next-to-leading order QCD analysis of the Gross-Llewellyn Smith sum rule and the higher twist effects
title_full Next-to-next-to-leading order QCD analysis of the Gross-Llewellyn Smith sum rule and the higher twist effects
title_fullStr Next-to-next-to-leading order QCD analysis of the Gross-Llewellyn Smith sum rule and the higher twist effects
title_full_unstemmed Next-to-next-to-leading order QCD analysis of the Gross-Llewellyn Smith sum rule and the higher twist effects
title_short Next-to-next-to-leading order QCD analysis of the Gross-Llewellyn Smith sum rule and the higher twist effects
title_sort next-to-next-to-leading order qcd analysis of the gross-llewellyn smith sum rule and the higher twist effects
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/0370-2693(92)91278-H
http://cds.cern.ch/record/557862
work_keys_str_mv AT chylajiri nexttonexttoleadingorderqcdanalysisofthegrossllewellynsmithsumruleandthehighertwisteffects
AT kataevandreil nexttonexttoleadingorderqcdanalysisofthegrossllewellynsmithsumruleandthehighertwisteffects

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