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تسجيل مستخدم جديدNon Abelian $qbar{q}$ contributions to small-$x$ anomalous dimensions
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By using $k$-factorization, we derive resummation formulas for the non-abelian $qbar{q}$ contributions to both heavy flavour production by gluon fusion, and to the next-to-leading BFKL kernel. By combining this result with previous ones by Fadin et al. on the virtual terms, we also compute in closed form the complete $qbar{q}$ contribution to the gluon anomalous dimension in the $Q_0$-scheme. We find that $qbar{q}$ resummation effects are important for heavy flavour production, but are instead small in the anomalous dimension eigenvalues, because of a cancellation between abelian and non abelian contributions.
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