Reveals resonances related to excited baryons, suggesting implications for particle physics.
The LHCb experiment has recently reported two excited ωc resonances decaying to /+K⁻, with masses about 3185 MeV and 3327 MeV. We discuss their assignment to 2S1/2 and 2S3/2 states, which can be compared with masses based on extrapolation from the observed $1S$ states. The agreement is not perfect, but weighs against an earlier alternative assignment. Consequences for the spin-averaged $2P$ states are discussed.
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Karliner et al. (2023) studied this question.
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