Dynamical parton distributions for $\alpha_S$ determinations

Autor:	Vogt, A.
Jazyk:	angličtina
Rok vydání:	1995
Předmět:	electron p: deep inelastic scattering hadron hadron [interaction] momentum spectrum [quark] direct production [photon] strong interaction [coupling constant] electron p [deep inelastic scattering] photon [direct production] higher-twist [effect] model: parton small-x [structure function] numerical calculations: interpretation of experiments momentum spectrum [gluon] deep inelastic scattering: electron p strong interaction: coupling constant interpretation of experiments [numerical calculations] ddc:530 hadron hadron: interaction interaction [hadron hadron] gluon: momentum spectrum parametrization interaction: hadron hadron quantum chromodynamics: Lambda parameter quark: momentum spectrum parton [model] effect: higher-twist photon: direct production deep inelastic scattering [electron p] structure function: small-x direct production: photon coupling constant: strong interaction coupling constant [strong interaction] Lambda parameter [quantum chromodynamics]
DOI:	10.3204/pubdb-2023-00762
Popis:	6 pp. (1995). Precise determinations of the strong coupling constant in hadronic collisions demand sets of parton densities spanning a sufficiently wide range of values for the QCD scale parameter Λ. For such applications, we supplement the recent GRV parametrization by five sets of dynamically generated parton distributions for Λ-values corresponding to αS(MZ2) between 0.104 and 0.122. Present DIS data, including recent small-x HERA results, do not appreciably discriminate between these sets.
Databáze:	OpenAIRE
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