Meson-Baryon Scattering in QCD_2 for any Coupling

Abstract

Extending earlier work on strong-coupling meson-baryon scattering in QCD_2, we derive the effective meson-baryon action for any value of the coupling constant, in the large-N_c limit. Colour degrees of freedom play an important role, and we show that meson-baryon scattering can be formulated as a relativistic potential problem. We distinguish two cases that are non-trivial for unequal quark masses, and present the resulting equations for meson-baryon scattering amplitudes.

13 pages; acknowledgements added

References in corpus (16)

• Evidence for Narrow S=+1 Baryon Resonance in Photo-production from Neutron
• Observation of a Narrow Meson Decaying to Ds+pi0 at a Mass of 2.32 GeV/c^2
• Exotic Anti-Decuplet of Baryons: Prediction from Chiral Solitons
• Chiral Multiplets of Heavy-Light Mesons
• Implications of a DK Molecule at 2.32 GeV
• Observed D_s(2317) and tentative D(2100-2300) as the charmed cousins of the light scalar nonet
• Observation of a near-threshold enhancement in th p pbar mass spectrum from radiative J/psi-->gamma p pbar decays
• Understanding $D_{sJ}(2317)$
• Testing the Nature of the D_{sJ}^*(2317)^+ and D_{sJ}(2463)^+ States Using Radiative Transitions
• Description of the $D_s^{\ast }(2320)$ resonance as the $D\pi$ atom
• Spin-Orbit and Tensor Forces in Heavy-quark Light-quark Mesons: Implications of the New Ds state at 2.32 GeV
• The DsJ(2317): what can the Lattice say?
• Low-Mass Baryon-Antibaryon Enhancements in B Decays
• Bosonization and QCD in Two Dimensions
• Quark solitons as constituents of hadrons
• Scattering and Resonances in QCD_2

Cited by in corpus (8)

• Observation of a resonance X(1835) in J/ψ--> γπ^+ π^- η^{\prime}
• Observation of a threshold enhancement in the p \bar{Lambda} invariant mass spectrum
• Observation of a ppb mass threshoud enhancement in ψ^\prime\toπ^+π^-J/ψ(J/ψ\toγp\bar{p}) decay
• Study of Jψdecaying into ωp \bar p
• Exotic baryons in two-dimensional QCD and the generalized sine-Gordon solitons
• Renormalization of QCD_2
• Threshold behavior of scattering poles
• Meson spectrum in $QC{D}_2$ revisited