Heavy quark spin symmetry and SU(3)-flavour partners of the X(3872)
Abstract
In this work, an Effective Field Theory (EFT) incorporating light SU(3)-flavour and heavy quark spin symmetries is used to describe charmed meson-antimeson bound states. At Lowest Order (LO), this means that only contact range interactions among the heavy meson and antimeson fields are involved. Besides, the isospin violating decays of the X(3872) will be used to constrain the interaction between the D and a D mesons in the isovector channel. Finally, assuming that the X(3915) and Y(4140) resonances are D*D and Ds*Dbars* molecular states, we can determine the four Low Energy Constants (LECs) of the EFT that appear at LO and, therefore, the full spectrum of molecular states with isospin I=0, 1/2 > and 1.
- Publication:
-
Nuclear Physics A
- Pub Date:
- September 2013
- DOI:
- 10.1016/j.nuclphysa.2013.01.025
- arXiv:
- arXiv:1211.7004
- Bibcode:
- 2013NuPhA.914..482H
- Keywords:
-
- Heavy quark spin and flavour symmetries;
- Hidden charm molecules;
- XYZ states;
- High Energy Physics - Phenomenology;
- Nuclear Theory
- E-Print:
- 4 pages, 0 figures. arXiv admin note: text overlap with arXiv:1210.5431