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Motivated by recent photoemission experiments on cuprates, the low-lyingexcitations of a strongly correlated superconducting state are studiednumerically. It is observed that along the nodal direction these low-lyingone-particle excitations show a linear momentum dependence for a wide range ofexcitation energies and, thus, they do not present a kink-like structure. Thenodal Fermi velocity $v_{\rm F}$, as well as other observables, aresystematically evaluated directly from the calculated dispersions, and they arefound to compare well with experiments. It is argued that the parameterdependence of $v_{\rm F}$ is quantitatively explained by a simple picture of arenormalized Fermi velocity.Comment: 5 pages, 4 figures, to be published in Phys. Rev. Let

Role of Strong Correlation in the Recent Angle-Resolved Photoemission Spectroscopy Experiments on Cuprate Superconductors