Non Qq Light Meson Spectroscopy. Matters of Principle Exotic Mesons
نویسنده
چکیده
In this talk I comment on some theoretical expectations for exotic light meson spectroscopy below 2 GeV and their potential interest for a future energy upgrade of DAFNE. MATTERS OF PRINCIPLE The colours we perceive around us vary almost continuously between different tones. Only careful scrutiny of the light emitted by pure substances through diffraction gratings at the end of the 19th century demonstrated the separation of these colours into discrete lines, opening a window to a new world of phenomena. In the same way we hope that the spectral lines that form the light of the strong interactions will be resolved and the energy differences between them will help us understand the dynamics of the strong force in detail. With this statement of purpose in mind, in this note I comment on the spectroscopy of light mesons, with special attention to non conventional qq states.
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