Masses of tetraquarks with open charm and bottom

Abstract

The masses of the heavy tetraquarks with open charm and bottom are calculated within the diquark-antidiquark picture in the framework of the relativistic quark model. The dynamics of the light quarks and diquarks is treated completely relativistically. The diquark structure is taken into account by calculating the diquark-gluon form factor. New experimental data on charmed and charmed-strange mesons are discussed. Our results indicate that the anomalous scalar D_{s0}^*(2317) and axial vector D_{s1}(2460) mesons could not be considered as diquark-antidiquark bound states. On the other hand, D_s(2632) and D_{sJ}^*(2860) could be interpreted as scalar and tensor tetraquarks, respectively. The predictions for masses of the corresponding bottom counterparts of the charmed tetraquarks are given.

11 pages

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• Color-allowed Bottom Baryon to Charmed Baryon non-leptonic Decays
• Spectroscopy behavior of fully heavy tetraquarks
• Tetraquarks in large-$N_c$ QCD
• Tetraquark interpolating fields in a lattice QCD investigation of the $D_{s0}^{\ast }(2317)$ meson
• Analysis of the hidden-charm pentaquark states based on magnetic moment and transition magnetic moment
• Tetraquarks in holographic QCD
• An innovative model for coupled fermion-antifermion pairs
• The interplay between compact and molecular structures in tetraquarks
• Four-quark structure of the excited states of heavy mesons
• Tetraquark mass relations in quark and diquark models
• Comment on "Tetraquarks as diquark-antidiquark bound systems"
• Unveiling the Composition of the Single-Charm Molecular Pentaquarks: Insights from Radiative Decay and Magnetic Moment
• Rotation and vibration in tetraquarks