Strong and radiative decays of the $D_{s0}^{\ast }(2317)$ and $D_{s1}(2460)$

Abstract

Since their discovery in 2003, the open charm states $D_{s0}^{\ast }(2317)$ and $D_{s1}(2460)$ provide a challenge to the conventional quark model. In recent years, theoretical evidence has been accumulated for both states in favor of a predominantly $DK$ and $D^{\ast }K$ molecular nature, respectively. However, a direct experimental proof of this hypothesis still needs to be found. Since radiative decays are generally believed to be sensitive to the inner structure of the decaying particles, we study in this work the radiative and strong decays of both the $D_{s0}^{\ast }(2317)$ and $D_{s1}(2460)$, as well as of their counterparts in the bottom sector. While the strong decays are indeed strongly enhanced for molecular states, the radiative decays are of similar order of magnitude in different pictures. Thus, the experimental observable that allows one to conclusively quantify the molecular components of the $D_{s0}^{\ast }(2317)$ and $D_{s1}(2460)$ is the hadronic width, and not the radiative one, in contradistinction to common belief. We also find that radiative decays of the sibling states in the bottom sector are significantly more frequent than the hadronic ones. Based on this, we identify their most promising discovery channels.

References in corpus (44)

• Observation of a Narrow Meson Decaying to Ds+pi0 at a Mass of 2.32 GeV/c^2
• Observation of a Narrow Resonance of Mass 2.46 GeV/c^2 Decaying to D_s^*+ pi^0 and Confirmation of the D_sJ^* (2317) State
• Chiral Multiplets of Heavy-Light Mesons
• Implications of a DK Molecule at 2.32 GeV
• On heavy-light meson resonances and chiral symmetry
• Dynamically Generated Open and Hidden Charm Meson Systems
• Observed D_s(2317) and tentative D(2100-2300) as the charmed cousins of the light scalar nonet
• Dynamically generated 0^+ heavy mesons in a heavy chiral unitary approach
• Interactions of Charmed Mesons with Light Pseudoscalar Mesons from Lattice QCD and Implications on the Nature of the D_{s0}^*(2317)
• Strong and radiative decays of the Ds0*(2317) meson in the DK-molecule picture
• $D_{s0}^{\ast }(2317)$ Meson and $D$-Meson-Kaon Scattering from Lattice QCD
• Dynamically generated 1^+ heavy mesons
• $D_s$ mesons with $DK$ and $D^{\ast }K$ scattering near threshold
• Open-charm meson resonances with negative strangeness
• Interactions between heavy mesons and Goldstone bosons from chiral dynamics
• Axial Resonances in the Open and Hidden Charm Sectors
• Chiral Lagrangian with Heavy Quark-Diquark Symmetry
• Radiative $D^{\ast }$ Decay Using Heavy Quark and Chiral Symmetry
• Chiral effective action with heavy quark symmetry
• Radiative and isospin-violating decays of Ds mesons in the hadrogenesis conjecture
• Scattering lengths of Nambu-Goldstone bosons off $D$ mesons and dynamically generated heavy-light mesons
• Radiative transitions of $D_{sJ}^{\ast }(2317)$ and $D_{sJ}(2460)$
• D* K molecular structure of the Ds1(2460) meson
• Subleading contributions to the width of the D_{s0}*(2317)
• Implications of heavy quark spin symmetry on heavy meson hadronic molecules
• Possible S-wave Bound-States of Two Pseudoscalar Mesons
• Two-photon decays of hadronic molecules
• Light meson mass dependence of the positive parity heavy-strange mesons
• Molecular structure of the Bs0*(5725) and Bs1(5778) bottom-strange mesons
• Chiral Lagrangians for Baryons coupled to massive Spin-1 Fields
• Pion photoproduction off the proton in a gauge-invariant chiral unitary framework
• Continuum bound states K-long, D_{1}(2420), D_{s1}(2536) and their partners K-short, D_{1}(2400), D*_{sJ}(2463)
• Even- and Odd-Parity Charmed Meson Masses in Heavy Hadron Chiral Perturbation Theory
• Heavy-Quark Symmetry and the Electromagnetic Decays of Excited Charmed Strange Mesons
• The pion-nucleon scattering lengths from pionic deuterium
• Tetraquarks, hadronic molecules, meson-meson scattering and disconnected contributions in lattice QCD
• Radiative decays of the $D_{s0}(2317)$, $D_{s1}(2460)$ and the related strong coupling constants
• Radiative decay of the dynamically generated open and hidden charm scalar meson resonances D_{s0}^*(2317) and X(3700)
• Structure of the $(0^{+},1^{+})$ mesons $B_{s0}$ and $B_{s1}$, and the strong coupling constants $g_{B_{s0}BK}$ and $g_{B_{s1}{B}^{\ast }K}$
• Near Mass Degeneracy in the Scalar Meson Sector: Implications for $B_{(s)0}^{\ast }$ and $B_{(s)1}^{\prime }$ Mesons
• Mass splittings within heavy baryon isospin multiplets in chiral perturbation theory
• The mixing of $D_{s1}(2460)$ and $D_{s1}(2536)$
• Reanalysis of the (0^+,1^+) states B_{s0} and B_{s1} with QCD sum rules
• Radiative decays of the $(0^{+},1^{+})$ strange-bottom mesons

Cited by in corpus (47)

• Hadronic molecules
• A review of the open charm and open bottom systems
• Chiral perturbation theory for heavy hadrons and chiral effective field theory for heavy hadronic molecules
• Weak decays of heavy hadrons into dynamically generated resonances
• Towards a theory of hadron resonances
• What can radiative decays of the X(3872) teach us about its nature?
• On chiral extrapolations of charmed meson masses and coupled-channel reaction dynamics
• Novel coupled channel framework connecting quark model and lattice QCD: an investigation on near-threshold $D_s$ states
• A Review on Partial-wave Dynamics with Chiral Effective Field Theory and Dispersion Relation
• How the X(5568) challenges our understanding of QCD
• Contribution of constituent quark model $c\bar{s}$ states to the dynamics of the $D_{s0}^{\ast }(2317)$ and $D_{s1}(2460)$ resonances
• Study of open-charm $0^{+}$ states in unitarized chiral effective theory with one-loop potentials
• $D_{s0}^{\ast }(2317)$ and $DK$ scattering in $B$ decays from BaBar and LHCb data
• Testing the molecular nature of ${\mathbf{D}}_{\mathbf{s}0}^{\ast }(2317)$ and ${\mathbf{D}}_0^{\ast }(2400)$ in semileptonic ${\mathbf{B}}_{\mathbf{s}}$ and $\mathbf{B}$ decays
• Triangle singularities in $B^{-}\to K^{-}{\pi }^{-}{D}_{s0}^{+}$ and $B^{-}\to K^{-}{\pi }^{-}{D}_{s1}^{+}$
• Masses of $D$ mesons, $D_s$ mesons and charmonium states from twisted mass lattice QCD
• A QCD sum rule study for a charged bottom-strange scalar meson
• Radiative and pionic transitions from the $D_{s1}(2460)$ to the $D_{s0}^{\ast }(2317)$
• New spectrum of negative-parity doubly charmed baryons: Possibility of two quasistable states
• Update on strong and radiative decays of the $D_{s0}^{\ast }(2317)$ and $D_{s1}(2460)$ and their bottom cousins
• Continuum limit of the $D$ meson, $D_s$ meson and charmonium spectrum from $N_f=2+1+1$ twisted mass lattice QCD
• Resonances in QCD
• Measurement of the absolute branching fraction of $D_{s0}^{\ast \pm }(2317)\to {\pi }^0{D}_s^{\pm }$
• Masses of Scalar and Axial-Vector B Mesons Revisited
• On chiral excitations with exotic quantum numbers
• $D_{s0}^{\ast }(2317{)}^{+}$ in the decay of $B_c$ into $J/\psi DK$
• The Strong Decays of $P-$wave Mixing Heavy-Light $1^{+}$ States
• The $\rho (\omega )B^{\ast }(B)$ interaction and states of $J=0,1,2$
• Chiral loops in the isospin violating decays of D_{s1}(2460) and D*_{s0}(2317)
• Coupled-channel dynamics with chiral long-range forces in the open-charm sector of QCD
• $D_{s0}^{\ast \pm }(2317)$ and $KD$ scattering from $B_s^0$ decay
• Isospin-conserving hadronic decay of the $D_{s1}(2460)$ into $D_s{\pi }^{+}{\pi }^{-}$
• Do near-threshold molecular states mix with neighbouring $\bar{Q}Q$ states?
• Production of $P-$wave charmed and charmed-strange mesons in pion and kaon induced reactions
• Electric transitions of the charmed-strange mesons in a relativistic quark model
• Measurement of the Born Cross Sections for $e^{+}{e}^{-}\to D_s^{+}{D}_{s1}(2460{)}^{-}+c.c.$ and $e^{+}{e}^{-}\to D_s^{\ast +}{D}_{s1}(2460{)}^{-}+c.c.$
• Production of the $D_{s0}(2317)$ and $D_{s1}(2460)$ by kaon-induced reactions on a proton target
• 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
• Masses and radiative decay widths of the $D_{s0}^{\ast }(2317)$ and $D_{s1}^{\prime }(2460)$ and their bottom analogs
• Reanalysis of lattice QCD spectra leading to the $D_{s0}^{\ast }(2317)$ and $D_{s1}^{\ast }(2460)$
• $B_{s1}(5778)$ as a $B^{\ast }\bar{K}$ molecule in the Bethe-Salpeter equation approach
• Status and perspectives for $\bar{P}ANDA$ at FAIR
• Exotic hadrons associated with $b$-quark
• What can we learn from the radiative decays of the $D_{s1}(2460)$ meson?
• Observation of the radiative decay $D_s(2317{)}^{+}\to D_s^{\ast }\gamma$
• Radiative decays of hadronic molecules: From confusion to inspiration
• Perspectives of Open Charm Physics at $\bar{P}ANDA$