Light Hybrid Mesons in QCD

Physics – High Energy Physics – High Energy Physics - Phenomenology

Scientific paper

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Typos fixed, references updated; the final version version to appear in Phys. Lett. B. 6 pages, Latex, espcrc1.sty is required

Scientific paper

10.1016/S0370-2693(00)00621-3

Including the radiative perturbative corrections and the short distance tachyonic gluon mass effects which mimic the ones of UV renormalons, we re-estimate the decay amplitudes, masses and widths of light hybrid mesons from QCD spectral sum rules. We show that the effects are tiny and confirm the previous lowest order results. We discuss the phenomenological impacts of our results for the vector hybrids.

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