The transverse momentum (p(T)) spectra of identified charged particles have been measured at very low and intermediate transverse momenta in Au+Au collisions at root(s(NN)) = 62.4 GeV and d+Au collisions at root(s(NN)) = 200 GeV using the PHOBOS detector at RHIC. New results on charged particle production at very low p(T) in central Au+Au collisions at root(s(NN)) = 200 GeV in the centrality intervals 0-6% and 6-15% are presented. A comparison of the PHOBOS IOW-PT data with predictions of a recent optical model is shown. The shapes of m(T) spectra for d+Au and Au+Au collisions are compared.
