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arXiv · 1903.11504

The Regge trajectories and leptonic widths of the vector $s\bar s$ mesons

A. M. Badalian·B. L. G. Bakker
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Abstract

The spectrum of the $s\bar s$ mesons is studied performing a phenomenological analysis of the Regge trajectories defined for the excitation energies. For the $ϕ(3 ^3S_1)$ state the mass $M(ϕ(3S))=2100(20)$ MeV and the leptonic width $Γ_{ee}(ϕ(3S))=0.27(2)$ keV are obtained, while the mass of the $2 ^3D_1$ state, $M(ϕ(2 ^3D_3))=2180(5)$ MeV, appears to be in agreement with the mass of the $ϕ(2170)$ resonance, and its leptonic width, $Γ_{ee}(2 ^3D_1)=0.20\pm 0.10$ keV, has a large theoretical uncertainty, depending on the parameters of the flattened confining potential.

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A. M. Badalian, B. L. G. Bakker. 2019-03-27. The Regge trajectories and leptonic widths of the vector $s\bar s$ mesons. https://doi.org/10.1007/s00601-019-1525-9

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