QCD vacuum tensor susceptibility and properties of transversely polarized mesons
نویسندگان
چکیده
We re-estimate the tensor susceptibility of QCD vacuum, χ, and to this end, we re-estimate the leptonic decay constants for transversely polarized ρ, ρand b1-mesons. The origin of the susceptibility is analyzed using duality between ρand b1channels in a 2-point correlator of tensor currents. We confirm the results of [1] for the 2-point correlator of tensor currents and disagree with [2] on both OPE expansion and the value of QCD vacuum tensor susceptibility. Using our value for the latter we determine new estimations of nucleon tensor charges related to the first moment of the transverse structure function h1 of a nucleon. PACS: 11.15.Tk, 12.38.Lg, 14.40.Cs
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