The charmed strange meson system

Abstract

Motivated by the recent surprising discovery of two new meson states with c s-bar quark content but unexpectedly low masses and narrow total decay widths, we work out, in a nonrelativistic potential-model approach developed already some two decades ago, the predictions for the energy levels of the corresponding charm-antistrange quark bound states. In spite of the fact that this simple quark model reproduces the mass spectrum of the previously observed hadrons remarkably well, we are led to the conclusion that, without considerable modifications, both the new states do not fit into this framework.

11 pages LaTeX

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Cited by in corpus (18)

• Diquark-Antidiquarks with Hidden or Open Charm and the Nature of X(3872)
• A review of the open charm and open bottom systems
• Excited Charmed Mesons: Observations, Analyses and Puzzles
• Pionic Decays of $D_{sj}(2317)$, $D_{sj}(2460)$ and $B_{sj}(5718)$, $B_{sj}(5765)$
• Open-charm meson spectroscopy
• On the mass differences between the scalar and pseudoscalar heavy-light mesons
• Heavy-Quark Symmetry and the Electromagnetic Decays of Excited Charmed Strange Mesons
• Strong decays of $D_{sJ}(2317)$ and $D_{sJ}(2460)$
• Observation of Ds1(2536)+ -> D+pi-K+ and angular decomposition of Ds1(2536)+ -> D*+K0S
• Understanding masses of $c\bar{s}$ states in Regge phenomenology
• Potential description of charmonium and charmed-strange mesons from lattice QCD
• Measurements of $B\to \bar{D}{D}_{s0}^{\ast +}(2317)$ decay rates and a search for isospin partners of the $D_{s0}^{\ast +}(2317)$
• $D_{s0}^{\ast }(2317{)}^{+}$ in the decay of $B_c$ into $J/\psi DK$
• A possible assignment for the ground scalar meson nonet
• P-Wave Charmed-Strange Mesons
• Charmed scalar resonances -- Conventional and four-quark mesons
• The quasiclassical theory of the Dirac equation with a scalar-vector interaction and its applications in the theory of heavy-light mesons
• Investigation of the $D_{s1}$ structure via $B_c$ to $D_{s1}{l}^{+}{l}^{-}/\nu \bar{\nu }$ transitions in QCD