Freiburg 1998 – scientific programme

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T: Teilchenphysik

T 203: Strukturfunktionen II

T 203.3: Talk

Tuesday, March 24, 1998, 09:00–09:15, HS C

Scheme-invariant Evolution Equations — •S. Kurth¹, J. Blümlein¹, and A. Vogt² — ¹DESY - Zeuthen, Platanenallee 6, 15738 Zeuthen — ²Institut für Theoretische Physik, Universität Würzburg, Am Hubland, 97074 Würzburg

A factorization and renormalization scheme independent formulation of the QCD evolution equations of deep-inelastic scattering structure functions is presented. We consider combined next-to-leading order evolution equations using the observables F₂(x,Q²) and F_L(x,Q²) as well as F₂(x,Q²) and ∂ F₂(x,Q²)/∂ logQ². Numerical results are compared for both methods in a QCD analysis of deep-inelastic scattering data.