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Probing the structure of $f_0(980)$ through radiative $phi$ decays | | F. De Fazio
; M.R. Pennington
; | | Date: |
27 Apr 2001 | | Journal: | Phys.Lett. B521 (2001) 15-21 | | Subject: | hep-ph | | Abstract: | We consider the radiative transition $phi o f_0 gamma$, which is a sensitive probe of the nature of the $f_0(980)$ particle. Using the QCD sum-rule technique, we estimate the branching ratio of such decay mode to be: ${cal B}(phi o f_0 gamma)=(2.7 pm 1.1) ~ 10^{-4}$, in fair agreement with present experimental data. As for the structure of the $f_0$, the result suggests a sizeable $s {ar s}$ component; however, this result does not exclude the possibility of further components and allows a more complex structure than indicated by the naive quark model. | | Source: | arXiv, hep-ph/0104289 | | Services: | Forum | Review | PDF | Favorites | |
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