The molecule and the tetraquark model are the two competing interpretations of the X(3872). I will briefly comment on how far these two pictures are really resolvable by the experiment, and I will give a concise account on a new method for defining the quark content of hadrons at heavy-ion colliders.
CITATION STYLE
Polosa, A. D. (2007). The double life of the X meson. In IFAE 2006 (pp. 51–56). Springer Milan. https://doi.org/10.1007/978-88-470-0530-3_4
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