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hep-ph2024
Open charm tetraquarks in broken SU(3)_F symmetry
L. Maiani, A. D. Polosa, V. Riquer
Prompted by a recent lattice QCD calculation, we review the SU(3) light quark flavor structure of charmed tetraquarks with spin-0 diquarks. Fermi statistics forces the three light…
hep-ph2024
Radiative decays of X(3872) discriminate between the molecular and compact interpretations
B. Grinstein, L. Maiani, A. D. Polosa
Radiative decays X --> psi(1S) + gamma and X --> psi(2S) + gamma might be expected to have a ratio of branching fractions following the phase space volumes ratio. However data sugg…