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Proceedings of 41st International Conference on High Energy Physics β€” PoS(ICHEP2022) 2023
DOI: 10.22323/1.414.0780
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Light Meson Spectroscopy at BESIII

Abstract: BESIII has the world's largest samples of 𝐽/πœ“ and πœ“(3686) events from 𝑒 + 𝑒 βˆ’ annihilations, which offer an ideal laboratory to study light meson spectroscopy, in particular for the search of QCD exotics with gluonic excitations. The observation of a 1 βˆ’+ state, πœ‚ 1 (1855) in 𝐽/πœ“ β†’ π›Ύπœ‚πœ‚ β€² , the observation of the 𝑋 (2600) in 𝐽/πœ“ β†’ π›Ύπœ‹ + πœ‹ βˆ’ πœ‚ β€² , and the observation of 𝐽/πœ“ Electromagnetic Dalitz Decays to 𝑋 (1835), 𝑋 (2120) and 𝑋 (2370) will be discussed in this proceeding.

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