TY - INPR A1 - Roland, Christof A1 - Alt, Christopher A1 - Antičić, Tome A1 - Baatar, B. A1 - Barna, Daniel A1 - Bartke, Jerzy A1 - Betev, Latchezar A1 - Białkowska, Helena A1 - Billmeier, Anja A1 - Blume, Christoph A1 - Boimska, Bożena A1 - Botje, Michiel A1 - Bracinik, Juraj A1 - Bramm, Roland A1 - Brun, René A1 - Bunčić, Predrag A1 - Cerny, Vladimír A1 - Christakoglou, Panagiotis A1 - Chvala, Ondrej A1 - Cramer, John G. A1 - Csató, Péter A1 - Darmenov, Nikolay A1 - Dimitrov, Anton A1 - Dinkelaker, Peter A1 - Eckardt, Volker A1 - Farantatos, Gerassimos A1 - Flierl, Dominik Bernhard A1 - Fodor, Zoltán A1 - Foka, Panagiota A1 - Freund, Peter A1 - Friese, Volker A1 - Gál, József A1 - Gaździcki, Marek A1 - Georgopoulos, George A1 - Gładysz-Dziaduś, Ewa A1 - Grebieszkow, Katarzyna A1 - Hegyi, Sándor A1 - Höhne, Claudia A1 - Kadija, Krešo A1 - Karev, Alexandre A1 - Kliemant, Michael A1 - Kniege, Stefan A1 - Kolesnikov, Vadim I. A1 - Kollegger, Thorsten A1 - Kornaś, Ewelina A1 - Korus, Robert A1 - Kowalski, Marek A1 - Kraus, Ingrid A1 - Kreps, Michal A1 - Leeuwen, Marco van A1 - Lévai, Péter A1 - Litov, Leandr A1 - Lungwitz, Benjamin A1 - Makariev, Martin Vasilev A1 - Malakhov, Aleksandr I. A1 - Markert, Christina A1 - Mateev, Matej D. A1 - Mayes, Bill W. A1 - Melkumov, Georgy L. A1 - Meurer, Christine A1 - Mischke, André A1 - Mitrovski, Michael Kosta A1 - Molnár, József A1 - Mrówczyński, Stanislaw A1 - Pálla, Gabriella A1 - Panagiotou, Apostolos D. A1 - Panayotov, Dobromir A1 - Petridis, Athanasios A1 - Pikna, Miroslav A1 - Pinsky, Lawrence A1 - Pühlhofer, Falk A1 - Reid, Jeffrey G. A1 - Renfordt, Rainer Arno Ernst A1 - Roland, Gunther A1 - Richard, Agnes Carol Joanna A1 - Rybczyński, Maciej A1 - Rybicki, Andrzej A1 - Sandoval, Andres A1 - Sann, Hans A1 - Schmitz, Norbert A1 - Seyboth, Peter A1 - Siklér, Ferenc A1 - Sitar, Branislav A1 - Skrzypczak, Ewa A1 - Stefanek, Grzegorz A1 - Stock, Reinhard A1 - Ströbele, Herbert A1 - Šuša, Tatjana A1 - Szentpétery, Imre A1 - Sziklai, János A1 - Trainor, Thomas A. A1 - Varga, Dezsö A1 - Vassiliou, Maria A1 - Veres, Gábor I. A1 - Vesztergombi, György A1 - Vranić, Danilo A1 - Wetzler, Alexander Albert A1 - Włodarczyk, Zbigniew A1 - Yoo, In-Kwon A1 - Zaranek, Jacek A1 - Zimányi, József T1 - Event-by-event fluctuations of particle ratios in central Pb + Pb collisions at 20 to 158 AGeV N2 - In the vicinity of the QCD phase transition, critical fluctuations have been predicted to lead to non-statistical fluctuations of particle ratios, depending on the nature of the phase transition. Recent results of the NA49 energy scan program show a sharp maximum of the ratio of K+ to Pi+ yields in central Pb+Pb collisions at beam energies of 20-30 AGeV. This observation has been interpreted as an indication of a phase transition at low SPS energies. We present first results on event-by-event fluctuations of the kaon to pion and proton to pion ratios at beam energies close to this maximum. Y1 - 2004 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/3872 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30-16230 N1 - Preprint, später in Journal of Physics G: Nuclear and Particle Physics 30.2004, S1381 ER -