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X(3872): Hadronic Molecules in Effective Field Theory

Mohammad T. AlFiky·Fabrizio Gabbiani·Alexey A. Petrov
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Abstract

We consider the implications from the possibility that the recently observed state X(3872) is a meson-antimeson molecule. We write an effective Lagrangian consistent with the heavy-quark and chiral symmetries needed to describe X(3872). We claim that if X(3872) is a molecular bound state of D^*0 and anti-D^0 mesons, the heavy-quark symmetry requires the existence of the molecular bound state X_b of B^*0 and anti-B^0 with the mass of 10604 MeV.

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Mohammad T. AlFiky, Fabrizio Gabbiani, Alexey A. Petrov. 2005-06-24. X(3872): Hadronic Molecules in Effective Field Theory. https://doi.org/10.1016/j.physletb.2006.07.069

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