QCD string in light-light and heavy-light mesons

Abstract

The spectra of light-light and heavy-light mesons are calculated within the framework of the QCD string model, which is derived from QCD in the Wilson loop approach. Special attention is payed to the proper string dynamics that allows us to reproduce the straight-line Regge trajectories with the inverse slope being 2πσfor light-light and twice as small for heavy-light mesons. We use the model of the rotating QCD string with quarks at the ends to calculate the masses of several light-light mesons lying on the lowest Regge trajectories and compare them with the experimental data as well as with the predictions of other models. The masses of several low-lying orbitally and radially excited heavy--light states in the D, D_s, B, and B_s meson spectra are calculated in the einbein (auxiliary) field approach, which has proven to be rather accurate in various calculations for relativistic systems. The results for the spectra are compared with the experimental and recent lattice data. It is demonstrated that an account of the proper string dynamics encoded in the so-called string correction to the interquark interaction leads to an extra negative contribution to the masses of orbitally excited states that resolves the problem of the identification of the D(2637) state recently claimed by the DELPHI Collaboration. For the heavy-light system we extract the constants \barΛ, λ_1, and λ_2 used in Heavy Quark Effective Theory (HQET) and find good agreement with the results of other approaches.

RevTeX, 42 pages, 7 tables, 7 EPS figures, uses epsfig.sty, typos corrected, to appear in Phys.Rev.D

Cited by in corpus (80)

• The $XYZ$ states: experimental and theoretical status and perspectives
• Mass spectra and Regge trajectories of light mesons in the relativistic quark model
• Heavy-light meson spectroscopy and Regge trajectories in the relativistic quark model
• Comment on the new $D_s^{(\ast )+}{\pi }^0$ resonances
• Excited bottom and bottom-strange mesons in the quark model
• Freezing of QCD coupling affects the short distance static potential
• Properties of the Charmed P-wave Mesons
• The coupled-channel analysis of the D and D_s mesons
• Decay constants of the heavy-light mesons from the field correlator method
• Universal description of radially excited heavy and light vector mesons
• Light-meson orbital excitations in the QCD string approach
• Channel coupling in heavy quarkonia: energy levels, mixing, widths and new states
• Nambu-Goldstone mesons in strong magnetic field
• Higher excitations of the $D$ and $D_s$ mesons
• Infrared behavior of the running coupling constant and bound states in QCD
• Spectra and decays of hybrid charmonia
• Masses of tetraquarks with open charm and bottom
• Dielectron widths of the S-, D-vector bottomonium states
• Deconfinement and quark-gluon plasma
• Radiative Decays of Excited Vector Mesons
• Asymptotic freedom and IR freezing in QCD: the role of gluon paramagnetism
• Regge Trajectories Analysis to DsJ(2317), DsJ(2460) and DsJ(2632) Mesons
• On the possibility to observe higher $n^3{D}_1$ bottomonium states in the $e^{+}{e}^{-}$ processes
• The chiral transitions in heavy-light mesons
• Measurement of the absolute branching fraction of $D_{s0}^{\ast \pm }(2317)\to {\pi }^0{D}_s^{\pm }$
• Relativistic path integral and relativistic Hamiltonians in QCD and QED
• Spin-dependent interactions in quarkonia
• The Hyperfine Splittings in Bottomonium and the $B_q(q=n,s,c)$ Mesons
• Baryon magnetic moments in the effective quark Lagrangian approach
• Revisiting $D_{s0}^{\ast }(2317)$ as a $0^{+}$ tetraquark state from QCD sum rules
• Di-electron and two-photon widths in charmonium
• X(6200) as a compact tetraquark in the QCD string model
• Note on universal description of heavy and light mesons
• Magnetic moments of mesons
• Leptonic widths of high excitations in heavy quarkonia
• Bethe-Salpeter study of radially excited vector quarkonia
• Orbitally excited D and B mesons in the approach of the QCD string with quarks at the ends
• 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 $J/\psi DK$
• Thermodynamics of quark-gluon plasma at finite baryon density
• The radial Regge trajectories and leptonic widths of the isovector mesons
• Chiral Lagrangian and chiral quark model from confinement in QCD
• The matrix Hamiltonian for hadrons and the role of negative-energy components
• The heavy-quark pole masses in the Hamiltonian approach
• Remarks on meson loop effects on quark models
• Charm and bottom baryons in nonperturbative quark dynamics
• Nonperturbative hyperfine contribution to the $b_1$ and $h_1$ meson masses
• The sigma meson from QCD sum rules for large-$N_c$ Regge spectra
• QED spectra in the path integral formalism
• Higher ${\eta }_c(nS)$ and ${\eta }_b(nS)$ mesons
• Accuracy of Auxiliary Field Approach for Baryons
• Chiral Symmetry Breaking with Scalar Confinement
• Microscopic study of the string breaking in QCD
• Search for a doubly-charged $DDK$ bound state in ${\rm Y}(1S,2S)$ inclusive decays and via direct production in $e^{+}{e}^{-}$ collisions at $\sqrt{s}$ = 10.520, 10.580, and 10.867 GeV
• Radial Regge trajectories for higher $\psi (nS)$ and $\psi (nD)$ states
• Spectrum and Regge-trajectories in QCD
• Chiral symmetry breaking and the Lorentz nature of confinement
• The leptonic widths of high $\psi$-resonances in unitary coupled-channel model
• Electromagnetic couplings of radially excited light vector mesons from QCD sum rules
• Exact relativistic Green's functions for the time-independent potentials
• QCD string in excited heavy-light mesons and heavy-quark hybrids
• Dynamical suppression of the spin-orbit interaction in hadrons
• The running mass $m_s$ at low scalefrom the heavy-light meson decay constants
• Regularities in hadron systematics, Regge trajectories and a string quark model
• Baryons in the Field Correlator Method: Effects of the Running Strong Coupling
• Hyperspherical-coordinate approach to the spectra and decay widths of hybrid quarkonia
• Gluonic correlation length from spin-dependent potentials
• String Correction for Baryon Orbital Excitations
• The charmed mesons in the region above 3.0 GeV
• The large-Nc limit of borelized spectral sum rules and the slope of radial Regge trajectories
• A multiquark approach to excited hadrons and Regge trajectories
• $B_{(s)}\to D_{s0}^{\ast }(2317)P(V)$ decays in perturbative QCD approach
• The case of equivalence of low and high energy constraints on Regge vector spectrum in AdS/QCD
• Probing $D_{s0}^{\ast }(2317)$ in the decays of $B$ to two charmed mesons
• Lepton decay constants of light mesons
• Theory of time-like baryon form factors near thresholds
• About the possibility of five-dimensional effective theories for low-energy QCD
• Extraction of nonperturbative parameters for $D^{(\ast )}$ mesons from lattice data
• Mass generation with adjoint fermions
• Chiral shifts in heavy-light mesons