@article{3073335,
    title = "System-size dependence of particle-ratio fluctuations in Pb + Pb collisions at 158A GeV",
    author = "Anticic, T. and Baatar, B. and Barna, D. and Bartke, J. and Beck, H. and Betev, L. and Białkowska, H. and Blume, C. and Bogusz, M. and Boimska, B. and Book, J. and Botje, M. and Bunčić, P. and Cetner, T. and Christakoglou, P. and Chung, P. and Chvála, O. and Cramer, J.G. and Eckardt, V. and Fodor, Z. and Foka, P. and Friese, V. and Gaåodzicki, M. and Grebieszkow, K. and Höhne, C. and Kadija, K. and Karev, A. and Kolesnikov, V.I. and Kollegger, T. and Kowalski, M. and Kresan, D. and László, A. and Lacey, R. and Van Leeuwen, M. and MaćKowiak-Pawłowska, M. and Makariev, M. and Malakhov, A.I. and Mateev, M. and Melkumov, G.L. and Mitrovski, M. and Mrówczyński, S. and Nicolic, V. and Pálla, G. and Panagiotou, A.D. and Peryt, W. and Pluta, J. and Prindle, D. and Pühlhofer, F. and Renfordt, R. and Roland, C. and Roland, G. and Rybczyński, M. and Rybicki, A. and Sandoval, A. and Schmitz, N. and Schuster, T. and Seyboth, P. and Siklér, F. and Skrzypczak, E. and Słodkowski, M. and Stefanek, G. and Stock, R. and Ströbele, H. and Susa, T. and Szuba, M. and Utvić, M. and Varga, D. and Vassiliou, M. and Veres, G.I. and Vesztergombi, G. and Vranić, D. and Włodarczyk, Z. and Wojtaszek-Szwarc, A.",
    journal = "PHYSICAL REVIEW C : NUCLEAR PHYSICS",
    year = "2013",
    volume = "87",
    number = "2",
    publisher = "American Physical Society",
    issn = "0556-2813",
    doi = "10.1103/PhysRevC.87.024902",
    abstract = "New measurements by the NA49 experiment of the centrality dependence of event-by-event fluctuations of the particle yield ratios (K++K -)/(π++π-), (p+p̄) /(π++π-), and (K++K-)/ (p+p̄) are presented for Pb+Pb collisions at 158A GeV. The absolute values of the dynamical fluctuations of these ratios, quantified by the measure σdyn, increase by about a factor of two from central to semiperipheral collisions. Multiplicity scaling scenarios are tested and found to apply for both the centrality and the previously published energy dependence of the (K++K-)/(π++π-) and (p+p̄)/(π++π-) ratio fluctuations. A description of the centrality and energy dependence of (K++K -)/(p+p̄) ratio fluctuations by a common scaling prescription is not possible since there is a sign change in the energy dependence. © 2013 American Physical Society."
}