Radiative and isospin-violating decays of Ds mesons in the hadrogenesis conjecture

Abstract

The masses and decays of the scalar D_{s0}^*(2317) and axial-vector D_{s1}^*(2460) charmed strange mesons are calculated consistently in the hadrogenesis conjecture. These mesons decay either strongly into the isospin-violating pi^0 D_s and pi^0 D_s^* channels or electromagnetically. They are generated by coupled-channel dynamics based on the leading order chiral Lagrangian. The effect of chiral corrections to chiral order Q_χ^2 is investigated. We show that taking into account large-N_c relations to determine the strength of these correction terms implies a measurable signal for an exotic axial-vector state in the eta D* invariant mass distribution. The one-loop contribution to the electromagnetic decay amplitudes of scalar and axial-vector states is calculated. The Lagrangian describing electromagnetic interactions is obtained by gauging the chiral Lagrangian for hadronic interactions and adding gauge-invariant correction terms to chiral order Q_chi^2. In addition the role of light vector meson degrees of freedom is explored. We confront our results with measured branching ratios. Once the light vector mesons are included, a natural explanation of all radiative decay parameters is achieved.

arXiv comment102 pages, 7 figures, further improved presentation

References in corpus (39)

• The Cosmological Parameters 2006
• Big-Bang nucleosynthesis (Particle Data Group mini-review)
• Phenomenology of Heavy Meson Chiral Lagrangians
• Observation of a Narrow Meson Decaying to Ds+pi0 at a Mass of 2.32 GeV/c^2
• The New Heavy Mesons: A Status Report
• 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
• Relativistic chiral SU(3) symmetry, large N_c sum rules and meson-baryon scattering
• On heavy-light meson resonances and chiral symmetry
• Dynamically Generated Open and Hidden Charm Meson Systems
• Dynamically generated 0^+ heavy mesons in a heavy chiral unitary approach
• Study of B- => D**0 pi-(D**0 => D(*)+ pi-) decays
• On meson resonances and chiral symmetry
• Strong and radiative decays of the Ds0*(2317) meson in the DK-molecule picture
• Dynamically generated 1^+ heavy mesons
• Chiral Lagrangians for Radiative Decays of Heavy Hadrons
• Scalar Mesons in $\varphi$ Radiative Decay: their implications for spectroscopy and for studies of CP-violation at $\varphi$ factories
• Open-charm meson resonances with negative strangeness
• Axial Resonances in the Open and Hidden Charm Sectors
• Observation of a New D_s Meson Decaying to D K at a Mass of 2.86 GeV/c^2
• Electromagnetic Corrections for Pions and Kaons : Masses and Polarizabilities
• Chiral effective action with heavy quark symmetry
• New Hadron States
• Electromagnetic Interactions in Heavy Hadron Chiral Theory
• J/Ψ\to ϕππ(K \bar{K}) decays, chiral dynamcis and OZI violation
• D* K molecular structure of the Ds1(2460) meson
• Spin-Orbit and Tensor Forces in Heavy-quark Light-quark Mesons: Implications of the New Ds state at 2.32 GeV
• Extraction of the D^*Dπcoupling from D^* decays
• Radiative decay of rho^0 and phi mesons in a chiral unitary approach
• Electromagnetic corrections in hadronic processes
• A Study of the DsJ(2317) and DsJ(2460) Mesons in Inclusive ccbar Production Near sqrt(s) = 10.6 GeV
• On Gauge Invariance of Breit-Wigner Propagators
• Effective chiral theory of nucleon-nucleon scattering
• $B^{\ast }B\pi (\gamma )$ couplings and $D^*\rar Dπ(γ) $-decays within a $1/M$-expansion in $full$ QCD
• Baryon self energies in the chiral loop expansion
• Heavy Meson Masses in Chiral Perturbation Theory with Heavy Quark Symmetry
• Heavy-Quark Symmetry and the Electromagnetic Decays of Excited Charmed Strange Mesons
• Study of B --> D^(*)D_s(J)^(*) Decays and Measurement of D_s^- and D_sJ(2 460)^- Branching Fractions
• Radiative decay of the dynamically generated open and hidden charm scalar meson resonances D_{s0}^*(2317) and X(3700)

Cited by in corpus (75)

• Hadronic molecules
• Heavy-Quark QCD Exotica
• 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
• Interactions of Charmed Mesons with Light Pseudoscalar Mesons from Lattice QCD and Implications on the Nature of the D_{s0}^*(2317)
• Interactions between heavy mesons and Goldstone bosons from chiral dynamics
• Hidden gauge formalism for the radiative decays of axial-vector mesons
• Effect of charmed meson loops on charmonium transitions
• Isospin breaking decays as a diagnosis of the hadronic molecular structure of the $P_c(4457)$
• Scattering lengths of Nambu-Goldstone bosons off $D$ mesons and dynamically generated heavy-light mesons
• Towards a theory of hadron resonances
• Subleading contributions to the width of the D_{s0}*(2317)
• Implications of heavy quark spin symmetry on heavy meson hadronic molecules
• Two-pole structures in QCD: Facts, not fantasy!
• Towards a new paradigm for heavy-light meson spectroscopy
• Electromagnetic transition form factors of light vector mesons
• Light meson mass dependence of the positive parity heavy-strange mesons
• Dynamically generated $J^P=1/2^{-}(3/2^{-})$ singly charmed and bottom heavy baryons
• Charm diffusion in a pion gas implementing unitarity, chiral and heavy quark symmetries
• Strong and radiative decays of the $D_{s0}^{\ast }(2317)$ and $D_{s1}(2460)$
• Extraction of the light quark mass ratio from the decays psi' --> J/psi pi^0 (eta)
• On chiral extrapolations of charmed meson masses and coupled-channel reaction dynamics
• D-meson propagation in hot dense matter
• How the X(5568) challenges our understanding of QCD
• On the radiative decays of light vector and axial-vector mesons
• Contribution of constituent quark model $c\bar{s}$ states to the dynamics of the $D_{s0}^{\ast }(2317)$ and $D_{s1}(2460)$ resonances
• Novel analysis of the decays psi' -> h_c pi^0 and eta_c'-> chi_{c0} pi^0
• Electromagnetic transitions in an effective chiral Lagrangian with the eta-prime and light vector mesons
• Compositeness of S-wave weakly-bound states from next-to-leading order Weinberg's relations
• The open-charm radiative and pionic decays of molecular charmonium Y(4274)
• Phenomenology of charmed mesons in the extended Linear Sigma Model
• Meson loops in the $f_0(980)$ and $a_0(980)$ radiative decays into $\rho$, $\omega$
• Impact of a thermal medium on $D$ mesons and their chiral partners
• Study on $0^{+}$ states with open charm in unitarized heavy meson chiral approach
• Transport properties of bottomed mesons in a hot mesonic gas
• Open bottom states and the anti-B meson propagation in hadronic matter
• 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
• Resonances in QCD
• Photon-fusion reactions from the chiral Lagrangian with dynamical light vector mesons
• Aspects of the low-energy constants in the chiral Lagrangian for charmed mesons
• Weak decays of heavy hadron molecules involving the f0(980)
• Radiative decays of dynamically generated charmed baryons
• Production of charm-strange hadronic molecules at the LHC
• Probing the nature of $Y(4260)$ and $Z_c(3900)$ in the isospin violating process $Y(4260)\to J/\psi \eta {\pi }^0$
• On kinematical constraints in boson-boson systems
• Spectral representation for u- and t-channel exchange processes in a partial-wave decomposition
• On chiral excitations with exotic quantum numbers
• Coupled-channel dynamics with chiral long-range forces in the open-charm sector of QCD
• On the chiral expansion of vector meson masses
• The mass spectrum and strong decay properties of the charmed-strange mesons within Godfrey-Isgur model considering the coupled-channel effects
• Isospin-conserving hadronic decay of the $D_{s1}(2460)$ into $D_s{\pi }^{+}{\pi }^{-}$
• One-loop renormalization of the chiral Lagrangian for spinless matter fields in the SU(N) fundamental representation
• Do near-threshold molecular states mix with neighbouring $\bar{Q}Q$ states?
• Study of $D_{s1}(2460{)}^{+}\to D_s^{+}{\pi }^{+}{\pi }^{-}$ in $B\to {\bar{D}}^{(\ast )}{D}_s^{+}{\pi }^{+}{\pi }^{-}$ decays
• Combined large-$N_c$ and heavy-quark operator analysis of 2-body meson-baryon counterterms in the chiral Lagrangian with charmed mesons
• Binding of the three-hadron $D{D}^{\ast }K$ system from the lattice effective field theory
• A coupled-channel system with anomalous thresholds and unitarity
• Masses and radiative decay widths of the $D_{s0}^{\ast }(2317)$ and $D_{s1}^{\prime }(2460)$ and their bottom analogs
• Phase shifts of the light pseudoscalar meson and heavy meson scattering in heavy meson chiral perturbation theory
• On coupled-channel dynamics in the presence of anomalous thresholds
• Degeneracy patterns of chiral companions at finite temperature
• On kinematical constraints in the hadrogenesis conjecture for the baryon resonance spectrum
• Phenomenology of a pseudoscalar glueball and charmed mesons
• Quark mass dependence of the low-lying charmed mesons at one loop in HH$\chi$PT
• A walk through the world of chiral dynamics
• Another walk through the world of chiral dynamics
• Chiral excitations of open-beauty systems
• Dynamics of strong and radiative decays of Ds-mesons in the hadrogenesis conjecture
• What can we learn from the radiative decays of the $D_{s1}(2460)$ meson?
• On chiral extrapolations of coupled-channel reaction dynamics for charmed mesons
• Radiative decays of hadronic molecules: From confusion to inspiration
• Exotic hadrons associated with $b$-quark
• Combined heavy-quark symmetry and large-$N_c$ operator analysis for 2-body counterterms in the chiral Lagrangian with $D$ mesons and charmed baryons
• Observation of the radiative decay $D_s(2317{)}^{+}\to D_s^{\ast }\gamma$