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arXiv · hep-ph/9403325

Observation of a New Charmed Strange Meson

The CLEO Collaboration
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Abstract

Using the CLEO-II detector, we have obtained evidence for a new meson decaying to $D^0 K^+$. Its mass is $2573.2^{+1.7}_{-1.6}\pm 0.8\pm 0.5$ {}~MeV/$c^2$ and its width is $16^{+5}_{-4}\pm 3$~MeV/$c^2$. Although we do not establish its spin and parity, the new meson is consistent with predictions for an $L=1$, $S=1$, $J_P=2^+$ charmed strange state.

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The CLEO Collaboration. 1994-03-22. Observation of a New Charmed Strange Meson. https://doi.org/10.1103/physrevlett.72.1972

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