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Digitale Medien

Correlator of heavy-quark currents at small q 2 in the large- $\beta_0$ limit (2005)

Grozin, A. G. ; Sturm, C.

Springer

The European physical journal 40 (2005), S. 157-164

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Details

ISSN: 1434-6052

Quelle: Springer Online Journal Archives 1860-2000

Thema: Physik

Notizen: Abstract. The correlator of vector heavy-quark currents at small q 2 is considered in the large- $\beta_0$ limit. The leading IR renormalon ambiguity of the sum of the perturbative series is canceled by the UV renormalon ambiguity of the gluon condensate. The asymptotic behavior of the perturbative series is obtained in a model-independent way, up to a single unknown normalization factor. Gluon-virtuality distribution functions for the perturbative correction are calculated.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1140/epjc/s2005-02124-2

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