The Correlator of Topological Charge Densities at low $Q^2$ in QCD

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dc.creatorIoffe, B. L.
dc.date1998-11-02
dc.date.accessioned2026-07-07T04:05:38Z
dc.date.available2026-07-07T04:05:38Z
dc.descriptionThe correlator of topological charge densities $χ(Q^2)$ in QCD is calculated in the domain of low $Q^2$. Basing on the Ward identities the low energy theorems are proved. The value of the first derivative $χ^{\prime}(0)$ found recently by QCD sum rules \cite{1} is used. The contributions of pseudoscalar quasi-Goldstone bosons as intermediate states in the correlator are calculated with the account of $η-π$ mixing.
dc.description17 p., no figures, Revtex
dc.identifierhttps://arxiv.org/abs/hep-ph/9811217
dc.identifierhttp://arxiv.org/abs/hep-ph/9811217
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/48475
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Theory
dc.titleThe Correlator of Topological Charge Densities at low $Q^2$ in QCD
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