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Dynamically generated open-charm baryons beyond the zero-range approximation
Authors: C. E. Jiménez-Tejero, A. Ramos & I. Vidaña
Ref.: Phys. Rev. C 80, 055206 (2009)
Abstract: The interaction of the low-lying pseudoscalar mesons with the ground-state baryons in the charm sector is studied within a coupled-channel approach using a t-channel vector-exchange driving force. The amplitudes describing the scattering of the pseudoscalar mesons off the ground-state baryons are obtained by solving the Lippmann-Schwinger equation. We analyze in detail the effects of going beyond the t=0 approximation. Our model predicts the dynamical generation of several open-charm baryon resonances in different isospin and strangeness channels, some of which can be clearly identified with recently observed states.
