Light flavor and heavy quark spin symmetry in heavy meson molecules
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Light flavor and heavy quark spin symmetry in heavy meson molecules

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Light flavor and heavy quark spin symmetry in heavy meson molecules

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Hidalgo Duque, Carlos; Nieves Pamplona, Juan Miguel; Pavón Valderrama, Manuel
Aquest document és un/a article, creat/da en: 2013
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 X(3872) can be used to constrain the interaction between the D and a (D) over bar* mesons in the isovector channel. As a consequence, we can rule out the existence of an isovector partner of the X(3872). If we additionally assume that the X(3915) and Y(4140) are D*(D) over bar* and D*(s)(D) over bar*(s) molecular states, we can determine the full spectrum of molecular states with isospin I = 0, 1/2 and 1.

    Hidalgo Duque, Carlos Nieves Pamplona, Juan Miguel Pavón Valderrama, Manuel 2013 Light flavor and heavy quark spin symmetry in heavy meson molecules Physical Review D 87 7 076006
http://dx.doi.org/10.1103/PhysRevD.87.076006
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