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Selected strong decays of η ( 2225 ) and ϕ ( 2170 ) as Λ Λ ¯ bound states

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The strong decays of the two resonances $\ensuremath{\eta}(2225)$ and $\ensuremath{\phi}(2170)$ are discussed for selected decay channels. The two resonances are considered as the $\mathrm{\ensuremath{\Lambda}}\overline{\mathrm{\ensuremath{\Lambda}}}$ bound states in the molecular scenario.… Click to show full abstract

The strong decays of the two resonances $\ensuremath{\eta}(2225)$ and $\ensuremath{\phi}(2170)$ are discussed for selected decay channels. The two resonances are considered as the $\mathrm{\ensuremath{\Lambda}}\overline{\mathrm{\ensuremath{\Lambda}}}$ bound states in the molecular scenario. The phenomenological hadronic molecular approach is employed for the calculation of respective decay modes using effective Lagrangians. Our results show that the decay modes $\ensuremath{\eta}(2225)\ensuremath{\rightarrow}{K}^{*}K$ and $\ensuremath{\phi}(2175)\ensuremath{\rightarrow}KK$ dominate over the partial decay widths of $\ensuremath{\eta}(2275)\ensuremath{\rightarrow}VV(\ensuremath{\phi}\ensuremath{\phi},\ensuremath{\omega}\ensuremath{\omega},{K}^{*}{K}^{*})$ and $\ensuremath{\phi}(2175)\ensuremath{\rightarrow}VS(\ensuremath{\omega}\ensuremath{\sigma},{K}^{*}{K}_{0}^{*}(800),\ensuremath{\phi}{f}_{0}(980))$ due to phase space and couplings.

Keywords: bound states; ensuremath phi; ensuremath; ensuremath rightarrow; strong decays

Journal Title: Physical Review D
Year Published: 2017

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