Direct analysis of scaling violations in large-Q2deep-inelastic neutrino and muon scattering

Autor:	Joseph F. Owens, R.G. Roberts, Alberto Devoto, Dennis W. Duke
Rok vydání:	1983
Předmět:	Quantum chromodynamics Physics Particle physics Muon Scattering High Energy Physics::Phenomenology Elementary particle Inelastic scattering Deep inelastic scattering Gluon Nuclear physics Physics::Accelerator Physics High Energy Physics::Experiment Neutrino Nuclear Experiment
Zdroj:	Physical Review D. 27:508-522
ISSN:	0556-2821
DOI:	10.1103/physrevd.27.508
Popis:	We have made an extensive analysis of all large-Q/sup 2/ deep-inelastic neutrino and muon scattering data using evolution equations to fit the scaling violations directly at fixed Bjorken x. We have included all higher-order corrections in both the nonsinglet and singlet cases. We find that the nonsinglet neutrino data give ..lambda../sub M/Sapprox. =300 +- 80 MeV but with systematic uncertainties of at least 100 MeV (MS refers to the modified minimal-subtraction scheme). The singlet neutrino and muon data are equally consistent with either ..lambda../sub M/Sapprox. =200 +- 100 MeV and a soft gluon distribution or ..lambda../sub M/Sapprox. =350 +- 100 MeV and a hard gluon distribution. Values as low as ..lambda../sub M/Sapprox. =100 MeV found in previous analyses are likely to be spurious.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::016725e148fa87954f203541c7f276f7 https://doi.org/10.1103/physrevd.27.508 Zobrazit plný text záznamu