Unraveling the pattern of the XYZ mesons
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Unraveling the pattern of the XYZ mesons

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Unraveling the pattern of the XYZ mesons

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Vijande Asenjo, Javier Perfil; Valcarce Mejía, Alfredo
Aquest document és un/a article, creat/da en: 2014
We present a plausible mechanism for the origin of the XYZ mesons in the heavy meson spectra within a standard quark-model picture. We discuss the conditions required for the existence of four-quark bound states or resonances contributing to the heavy meson spectra, being either compact or molecular. We concentrate on charmonium and bottomonium spectra, where several new states, difficult to understand as simple quark-antiquark pairs, have been reported by different experimental collaborations. The pivotal role played by entangled meson-meson thresholds is emphasized.

    Vijande Asenjo, Javier Valcarce Mejía, Alfredo 2014 Unraveling the pattern of the XYZ mesons Physics Letters B 736 325 328
http://dx.doi.org/10.1016/j.physletb.2014.07.048
distribuït sota llicència Creative Commons de Reconeixement-NoComercial 3.0 No adaptada

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