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arXiv · hep-ph/9907387

NNLO Calculation of DIS; Precision Determination of the Strong Coupling Constant, Extraction of the Gluon Density, and Comments on "Hidden" Gluinos

J. Santiago·F. J. Yndurain
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Abstract

Calculations of deep inelastic processes (DIS) to next-to-next to leading order are discussed. Fitting $ep$ experiment in the range $2.5\leq Q^2\leq 230 GeV^2$, we find the coupling $α_s(M_Z^2)=0.1163\pm0.0023$. We also get the gluon density $xG(x,Q^2\simeq 10 GeV^2)=0.51 x^{-0.44}(1-x)^{8.1}$, and negative evidence for the existence of light gluinos

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J. Santiago, F. J. Yndurain. 1999-07-16. NNLO Calculation of DIS; Precision Determination of the Strong Coupling Constant, Extraction of the Gluon Density, and Comments on "Hidden" Gluinos. https://doi.org/10.1016/s0920-5632(00)00544-2

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