Abstract
We propose an effective field theory incorporating light SU(3)-flavor and heavy quark spin symmetry to describe charmed meson-antimeson bound states. At lowest order the effective field theory entails a remarkable simplification: it only involves contact range interactions among the heavy meson and antimeson fields. We show that the isospin violating decays of the can be used to constrain the interaction between the and a mesons in the isovector channel. As a consequence, we can rule out the existence of an isovector partner of the . If we additionally assume that the and are and molecular states, we can determine the full spectrum of molecular states with isospin , and 1.
- Received 19 October 2012
DOI:https://doi.org/10.1103/PhysRevD.87.076006
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