Electronlike Fermi surface and remnant ({pi},0) feature in overdoped La{sub 1.78}Sr{sub 0.22}CuO{sub 4}

We have performed an angle-resolved photoemission study of overdoped La{sub 1.78}Sr{sub 0.22}CuO{sub 4}, and have observed sharp nodal quasiparticle peaks in the second Brillouin zone that are comparable to data from Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{delta}}. The data analysis using energy distribution curves, momentum distribution curves, and intensity maps all show evidence of an electronlike Fermi surface, which is well explained by band-structure calculations. Evidence for many-body effects are also found in the substantial spectral weight remaining below the Fermi level around ({pi},0), where the band is predicted to lie above E{sub F}.