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arXiv · hep-ph/0601143

Open-charm meson spectroscopy

J. Vijande·F. Fernandez·A. Valcarce
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Abstract

We present a theoretical framework that accounts for the new $D_J$ and $D_{sJ}$ mesons measured in the open-charm sector. These resonances are properly described if considered as a mixture of conventional $P-$wave quark-antiquark states and four-quark components. The narrowest states are basically $P-$wave quark-antiquark mesons, while the dominantly four-quark states are shifted above the corresponding two-meson threshold, being broad resonances. We study the electromagnetic decay widths as basic tools to scrutiny their nature. The proposed explanation incorporates in a natural way the most recently discovered mesons in charmonium spectroscopy.

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J. Vijande, F. Fernandez, A. Valcarce. 2006-01-18. Open-charm meson spectroscopy. https://doi.org/10.1103/physrevd.73.034002%2010.1103%2Fphysrevd.74.059903

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