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Dynamically generated open charmed baryons beyond the zero range approximation

Research paper by C. E. Jimenez-Tejero, A. Ramos, I. Vidana

Indexed on: 26 Nov '09Published on: 26 Nov '09Published in: High Energy Physics - Phenomenology



Abstract

The interaction of the low lying pseudo-scalar 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 pseudo-scalar 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 charmed baryon resonances in different isospin and strangeness channels, some of which can be clearly identified with recently observed states.