2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/184625The yields of identified particles have been measured at RHIC for Au+Au collisions at sqrt{s_NN} = 200 GeV using the PHOBOS spectrometer. The ratios of antiparticle to particle yields near mid-rapidity are presented. The first measurements of the invariant yields of charged pions, kaons and protons at very low transverse momenta are also shown.4 pages, 4 figures, Contribution to Quark Matter 2002, Nantes, France, July 2002Nuclear Experimenttext