Open-charm meson spectroscopy

Abstract

We present a theoretical framework that accounts for the new $D_J$ and $D_{sJ}$ mesons measured in the open-charm sector. These resonances are properly described if considered as a mixture of conventional $P-$wave quark-antiquark states and four-quark components. The narrowest states are basically $P-$wave quark-antiquark mesons, while the dominantly four-quark states are shifted above the corresponding two-meson threshold, being broad resonances. We study the electromagnetic decay widths as basic tools to scrutiny their nature. The proposed explanation incorporates in a natural way the most recently discovered mesons in charmonium spectroscopy.

15 pages, 5 tables. Accepted for publication in Phys. Rev. D

References in corpus (20)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Observation of a Broad Structure in the ${\pi }^{+}{\pi }^{-}J/\psi$ Mass Spectrum around 4.26 GeV/$c^2$
• Constituent quark model study of the meson spectra
• Observation of String Breaking in QCD
• Observation of a near-threshold omega-J/psi mass enhancement in exclusive B-->K omega J/psi decays
• A low-lying scalar meson nonet in a unitarized meson model
• Resonances in $J/\psi \to \varphi {\pi }^{+}{\pi }^{-}$ and $\varphi K^{+}{K}^{-}$
• Dynamics and Decay of Heavy-Light Hadrons
• A Comprehensive Four-Quark Interpretation of D_s(2317), D_s(2457) and D_s(2632)
• Production of $f_0(1710)$, $f_0(1500)$, and $f_0(1370)$ in $J/\psi$ hadronic decays
• Radiative transitions of $D_{sJ}^{\ast }(2317)$ and $D_{sJ}(2460)$
• First observation of a narrow charm-strange meson DsJ(2632) -> Ds eta and D0 K+
• Excited Charmed Mesons: Observations, Analyses and Puzzles
• Mass of D*_sJ(2317) and Coupled Channel Effect
• Nature of the light scalar mesons
• The coupled-channel analysis of the D and D_s mesons
• Heavy-Quark Symmetry and the Electromagnetic Decays of Excited Charmed Strange Mesons
• Is $D_{sJ}^{+}(2632)$ the first radial excitation of $D_s^{\ast }(2112)$?
• Options for the SELEX state D$_{s\J}^+(2632)$
• Towards an Understanding of the New Charm and Charm-Strange Mesons

Cited by in corpus (46)

• The Physics of the B Factories
• A review of the open charm and open bottom systems
• Dynamically Generated Open and Hidden Charm Meson Systems
• Dynamically generated 0^+ heavy mesons in a heavy chiral unitary approach
• Heavy-light meson spectroscopy and Regge trajectories in the relativistic quark model
• Dynamically generated 1^+ heavy mesons
• Axial Resonances in the Open and Hidden Charm Sectors
• New Hadron States
• Strong decays of heavy-light mesons in a chiral quark model
• Amplitude analysis of $B^{-}\to D^{+}{\pi }^{-}{\pi }^{-}$ decays
• Constituent quark model description of charmonium phenomenology
• Study of $D_J$ meson decays to $D^{+}{\pi }^{-}$, $D^0{\pi }^{+}$ and $D^{\ast +}{\pi }^{-}$ final states in pp collision
• Open charm and bottom tetraquarks in an extended relativized quark model
• Dynamical study of $\mathbf{QQ}-\bar{\mathbf{u}}\bar{\mathbf{d}}$ mesons
• Decoding the $X(5568)$ as a fully open-flavor $su\bar{b}\bar{d}$ tetraquark state
• Do $c\bar{c}n\bar{n}$ bound states exist?
• Four-quark Bound States in Chiral SU(3) Quark Model
• Newly observed $D_J(3000{)}^{+,0}$ and $D_J^{\ast }(3000{)}^0$ as $2P$ states in $D$ meson family
• Strong decays of $T_{c\bar{s}0}(2900{)}^{++/0}$ as a fully open-flavor tetraquark state
• Masses of tetraquarks with open charm and bottom
• Charmed-strange Meson Spectrum: Old and New Problems
• Contribution of $DK$ Continuum in the QCD Sum Rule for $D_{sJ}(2317)$
• AdS-QCD quark-antiquark potential, meson spectrum and tetraquarks
• Mass spectra and strong decays of charmed and charmed-strange mesons
• Masses of open charm and bottom tetraquark states in a relativized quark model
• Baryonium, tetra-quark state and glue-ball in large N_c QCD
• Studying the interaction between charm and light-flavor mesons
• Tetraquark Spectroscopy: A Symmetry Analysis
• Radiative decay of the dynamically generated open and hidden charm scalar meson resonances D_{s0}^*(2317) and X(3700)
• B meson spectroscopy
• Heavy hadron spectroscopy: a quark model perspective
• Quasi-two-body decays $B_{(s)}\to P{D}_0^{\ast }(2400)\to PD\pi$ in the perturbative QCD approach
• A multiquark description of the $D_{sJ}(2860)$ and $D_{sJ}(2700)$
• Hadronic-loop induced mass shifts in scalar heavy-light mesons
• Nonleptonic $B\to D^{(\ast )}{D}_{sJ}^{(\ast )}$ decays and the nature of the orbitally excited charmed-strange mesons
• Chiral SU(3) Quark Model Study of Tetraquark States: $cn\bar{n}\bar{s}/cs\bar{s}\bar{s}$
• Resonant state $D_0^{\ast }(2400)$ in the quasi-two-body $B$ meson decays
• Four-quark structure of the excited states of heavy mesons
• Four-quark stability
• Masses and radiative decay widths of the $D_{s0}^{\ast }(2317)$ and $D_{s1}^{\prime }(2460)$ and their bottom analogs
• S-wave DK interactions in the chiral SU(3) quark model
• Hadronic loop effects to excited scalar charmed mesons revisited
• Decay properties of $D_{s0}^{\ast }(2317{)}^{+}$ as a conventional $c\bar{s}$ meson
• Quark-model hadron structure
• Analysis of the hadronic molecules $DK$, $D^{\ast }K$, $D{K}^{\ast }$ and their bottom analogs with QCD sum rules
• Mass spectra of heavy mesons with instanton effects