Radiative decays of basic scalar, vector and tensor mesons and the determination of the P wave q anti-q multiplet
Aug, 2001Citations per year
Abstract:
We perform simultaneous calculations of the radiative decays of scalar mesons f_0(980)-> \gamma\gamma, a_0(980)-> \gamma\gamma, vector meson \phi(1020)-> \gamma f_0(980), \gamma a_0(980), \gamma \pi^0, \gamma \eta, \gamma \eta' and tensor mesons a_2(1320)-> \gamma\gamma, f_2(1270)-> \gamma\gamma, f_2(1525)-> \gamma\gamma assuming all these states to be dominantly the q\bar q ones. A good description of the considered radiative decays is reached by using almost the same radial wave functions for scalar and tensor mesons that supports the idea for the f_0(980), a_0(980) and a_2(1320), f_2(1270), f_2(1525) to belong to the same P -wave q\bar q multiplet.Note:
- 28 pages, LaTeX, 9 PostScript figures, epsfig.sty
- meson: radiative decay
- scalar meson
- vector meson
- tensor meson
- quark antiquark: bound state
- meson: multiplet
- meson: wave function
- amplitude analysis
- decay: form factor
- spectral representation
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