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arXiv · hep-ph/0410008

The meson spectra beyond a $q\bar q$ description

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

Despite the apparent simplicity of meson spectroscopy there are some states which cannot be accommodated in the usual $q\bar q$ structure. Among them there are either exotic states as the X(1600), or the recently measured charmed states $D_{sJ}^*$ and some of the light scalar mesons. We present a description of the light scalar mesons in terms of $q\bar q$ and $qq\bar q\bar q$ components.

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J. Vijande, F. Fernandez, A. Valcarce. 2004-10-01. The meson spectra beyond a $q\bar q$ description. https://doi.org/10.1063/1.1932929

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