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Possible Assignment of Excited Light $^3S_1$ Vector Mesons

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arxiv 2104.01339 v3 pith:IMHTWCE6 submitted 2021-04-03 hep-ph hep-exnucl-th

classification hep-phhep-exnucl-th
keywords assignmentlightmesonsmodelobservedpossiblestatesaddition
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

We reanalyze the problems in the assignment of 3$^3S_1$ and 4$^3S_1$ light mesons, which have not yet been well established with the $q\bar{q}$ quark model. Regge trajectories and the $^3P_0$ decay model are used respectively to study the mass and width of the observed states and predict the missing ones. By comparing our calculations with the latest experiments, we suggest that the inconsistent data of $\rho(2150)$ may include two similar structures $\rho(4^3S_1)$ and $\omega(4^3S_1)$. In addition, the problem of the $K^*(2^3S_1)$ assignment, with two observed states $K^*(1410)$ and $K^*(1680)$, is investigated, with several possible explanations.

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  1. The electromagnetic form factors of $\Sigma$ and $\Sigma^0 \to \Lambda$ transition in the timelike region

    hep-ph 2025-07 conditional novelty 4.0 of 10

    An extended vector meson dominance model with excited rho, omega, and phi states reproduces e+e- to Sigma Sigma-bar and e+e- to Lambda Sigma-zero data, and predicts unmeasured form factor ratios and phases.

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