DN interaction from meson exchange

Abstract

A model of the DN interaction is presented which is developed in close analogy to the meson-exchange KbarN potential of the Juelich group utilizing SU(4) symmetry constraints. The main ingredients of the interaction are provided by vector meson (rho, omega) exchange and higher-order box diagrams involving D*N, DΔ, and D*Δintermediate states. The coupling of DN to the pi-Lambda_c and pi-Sigma_c channels is taken into account. The interaction model generates the Lambda_c(2595) resonance dynamically as a DN quasi-bound state. Results for DN total and differential cross sections are presented and compared with predictions of an interaction model that is based on the leading-order Weinberg-Tomozawa term. Some features of the Lambda_c(2595) resonance are discussed and the role of the near-by pi-Sigma_c threshold is emphasized. Selected predictions of the orginal KbarN model are reported too. Specifically, it is pointed out that the model generates two poles in the partial wave corresponding to the Lambda(1405) resonance.

14 pages, 8 figures

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• Strangeness in Nuclei and Neutron Stars
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• Scattering studies with low-energy kaon-proton femtoscopy in proton-proton collisions at the LHC
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• Structure of the $\mathbf{\Lambda }(1405)$ from Hamiltonian effective field theory
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• Compositeness of the strange, charm and beauty odd parity $\Lambda$ states
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• $D^{(\ast )}N$ interaction and the structure of ${\Sigma }_c(2800)$ and ${\Lambda }_c(2940)$ in chiral effective field theory
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• Charming mesons with baryons and nuclei
• Strong couplings and form factors of charmed mesons in holographic QCD
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• Toward establishing low-lying $\Lambda$ and $\Sigma$ hyperon resonances with the $\bar{K}+d\to \pi +Y+N$ reaction
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• Formation spectra of charmed meson--nucleus systems using an antiproton beam
• SU(4) flavor symmetry breaking in D-meson couplings to light hadrons
• Hadronic molecules with a $\bar{D}$ meson in a medium
• Baryon-baryon interactions from chiral effective field theory
• $D^{+}{D}^{-}$ hadronic atom and its production in $pp$ and $p\bar{p}$ collisions
• Combined large-N_c and heavy-quark operator analysis for the chiral Lagrangian with charmed baryons
• $\bar{D}D$ meson pair production in antiproton-nucleus collisions
• $\bar{p}p$ annihilation into $\bar{D}D$ meson pair within an effective Lagrangian model
• Faddeev approach to the reaction $K^{-}d\to \pi \Sigma n$ at $p_K=1$ GeV/c
• Pole trajectories of the $\Lambda (1405)$ helps establish its dynamical nature
• The $\psi$(3770) resonance and its production in $\bar{p}p\to D\bar{D}$
• Study of $qqq\bar{q}Q$ pentaquark system in the Chiral Quark Model
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• Strangeness and Charm in Nuclear Matter
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