@article{3074814,
    title = "Recent results on spectra and yields from NA49",
    author = "Van Leeuwen, M. and Afanasiev, S.V. and Anticic, T. and Baatar, B. and Barna, D. and Bartke, J. and Barton, R.A. and Behler, M. and Betev, L. and Białkowska, H. and Billmeier, A. and Blume, C. and Blyth, C.O. and Boimska, B. and Botje, M. and Bracinik, J. and Bramm, R. and Brun, R. and Bunčić, P. and Cerny, V. and Chvala, O. and Cramer, J.G. and Csató, P. and Dinkelaker, P. and Eckardt, V. and Filip, P. and Fischer, H.G. and Fodor, Z. and Foka, P. and Freund, P. and Friese, V. and Gál, J. and Gaździcki, M. and Georgopoulos, G. and Gladysz, E. and Hegyi, S. and Höhne, C. and Igo, G. and Jones, P.G. and Kadija, K. and Karev, A. and Kolesnikov, V.I. and Kollegger, T. and Kowalski, M. and Kraus, I. and Kreps, M. and Lévai, P. and Malakhov, A.I. and Margetis, S. and Markert, C. and Mayes, B.W. and Melkumov, G.L. and Meurer, C. and Mischke, A. and Mitrovski, M. and Molnár, J. and Nelson, J.M. and Pálla, G. and Panagiotou, A.D. and Perl, K. and Petridis, A. and Pikna, M. and Pinsky, L. and Pühlhofer, F. and Reid, J.G. and Renfordt, R. and Retyk, W. and Roland, C. and Roland, G. and Rybicki, A. and Sammer, T. and Sandoval, A. and Sann, H. and Schmitz, N. and Seyboth, P. and Siklér, F. and Sitar, B. and Skrzypczak, E. and Squier, G.T.A. and Stock, R. and Ströbele, H. and Susa, T. and Szentpétery, I. and Sziklai, J. and Trainor, T.A. and Varga, D. and Vassiliou, M. and Veres, G.I. and Vesztergombi, G. and Vranić, D. and Wenig, S. and Wetzler, A. and Whitten, C. and Yoo, I.K. and Zaranek, J. and Zimányi, J.",
    journal = "Nuclear Physics A",
    year = "2003",
    volume = "715",
    pages = "161c-170c",
    publisher = "Elsevier",
    issn = "0375-9474",
    doi = "10.1016/S0375-9474(02)01424-0",
    abstract = "The energy dependence of hadron production ill central Pb+Pb collisions is presented and discussed. In particular, midrapidity mT-spectra for π-, K-, K+, p, p̄, d, φ, Λ and Λ̄ at 40, 80 and 158 AGeV are shown. In addition and Ω spectra are available at 158 AGeV. The spectra allow to determine the thermal freeze-out temperature T and the transverse flow velocity βT at the three energies. We do not observe a significant energy dependence of these parameters; furthermore there is no indication of early thermal freeze-out of and Ω at 158 AGeV. Rapidity spectra for π-, K-, K+ and φ at 40, 80 and 158 AGeV are shown, as well as first results on Ω rapidity distributions at 158 AGeV. The chemical freeze-out parameters T and μB at the three energies are determined from the total yields. The parameters are close to the expected phase boundary in the SPS energy range and above. Using the total yields of kaons and lambdas, the energy dependence of the strangeness to pion ratio is discussed. A maximum in this ratio is found at 40 AGeV. This maximum could indicate the formation of deconfined matter at energies above 40 AGeV. A search for open charm in a large sample of 158 AGeV events is presented. No signal is observed. This result is compared to several model predictions. © 2003 Elsevier Science B.V. All rights reserved."
}