2012/11/29 by Carlos Hidalgo-Duque, C. Hidalgo-Duque, J. Nieves +2
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph #nucl-th
paper · pdf · doi:10.1016/j.nuclphysa.2013.01.025
4 pages, 0 figures. arXiv admin note: text overlap with arXiv:1210.5431
arxiv created 2012/11/29 · openalex publication_date 2013/01/21 · arxiv updated 2013/09/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/04
In this work, an Effective Field Theory (EFT) incorporating light SU(3)-flavour and heavy quark spin symmetry 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^*Ds^* 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.