Summary
In this paper the problem of unitarity effects in hadron self-energies is studied. The resulting framework is then applied, within the recently proposed quark geometrodynamical theory, to the (approximate) calculation of mass shifts andSU 6 symmetry-breaking patterns of the low-lying mesons. We derive a correct description of the mass splittings in the (35,L=1)SU 6×O 3 multiplet, good experimental agreement for the Zweig-forbidden decay (ϕ→3π) and predictB(f′(150))→→π+π-≃0.025.
Riassunto
Si studiano gli effetti di unitarietà sulle autoenergie degli adroni. La teoria è applicata al calcolo approssimato di spostamenti di massa e di violazioni della simmetriaSU 6 dei mesoni più leggeri. Si deriva una descrizione corretta delle differenze di massa all’interno dei mesoni appartenenti alla (35,L=1), un buon accordo con l’esperienza del decadimento ϕ→3π, e si predice il braching ratioB(f′(150))→→π+π-≃0.025.
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Fogli, G., Preparata, G. Unitarity and hadron self-energy: the breaking ofSU 6 in the meson spectrum. Nuov Cim A 48, 235–246 (1978). https://doi.org/10.1007/BF02799678
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DOI: https://doi.org/10.1007/BF02799678