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arXiv · 0903.2949

Exotic meson-meson molecules and compact four--quark states

J. Vijande·A. Valcarce·N. Barnea
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Abstract

We present an exact calculation of $S$ and $P$ wave $QQ\bar n\bar n$ states using different standard nonrelativistic quark--quark potentials. We explore in detail the charm and bottom sectors looking for bound states that could be measured within existing facilities. Against the proliferation of four--quark states sometimes predicted in the literature, we found a small number of candidates to be stable. We analyze their properties in a trial to distinguish between compact and molecular states. Possible decay modes are discussed.

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J. Vijande, A. Valcarce, N. Barnea. 2009-03-17. Exotic meson-meson molecules and compact four--quark states. https://doi.org/10.1103/physrevd.79.074010

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