@article{3051168,
    title = "Xi and (Xi)over-bar production in 158 GeV/nucleon Pb+Pb collisions",
    author = "Appelhauser, H and Bachler, J and Bailey, SJ and Barna, D and Barnby, LS and and Bartke, J and Barton, RA and Bialkowska, H and Billmeier, A and and Blyth, CO and Bock, R and Bormann, C and Brady, FP and Brockmann, R and and Brun, R and Buncic, P and Caines, HL and Carr, LD and Cebra, D and and Cooper, GE and Cramer, JG and Cristinziani, M and Csato, P and Dunn, J and and Eckardt, V and Eckhardt, F and Ferguson, MI and Fischer, HG and and Flierl, D and Fodor, Z and Foka, P and Freund, P and Friese, V and and Fuchs, M and Gabler, F and Ganz, R and Geist, W and Gal, J and and Gazdzicki, M and Gladysz, E and Grebieszkow, J and Gunther, J and and Harris, JW and Hegyi, S and Henkel, T and Hill, LA and Hummler, H and and Igo, G and Irmscher, D and Jacobs, P and Jones, PG and Kadija, K and and Kolesnikov, VI and Konashenok, A and Kowalski, M and Lasiuk, B and and Levai, P and Liu, F and Malakhov, AI and Margetis, S and Markert, C and and Melkumov, GL and Mock, A and Molnar, J and Nelson, JM and Oldenburg, M and and Odyniec, G and Palla, G and Panagiotou, AD and Petridis, A and and Piper, A and Porter, RJ and Poskanzer, AM and Prindle, DJ and Puhlhofer, and F and Rauch, W and Reid, JG and Renfordt, R and Retyk, W and Ritter, HG and and Rohrich, D and Roland, C and Roland, G and Rudolph, H and Rybicki, A and and Sandoval, A and Sann, H and Semenov, AY and Schafer, E and and Schmischke, D and Schmitz, N and Schonfelder, S and Seyboth, P and and Seyerlein, J and Sikler, F and Skrzypczak, E and Snellings, R and and Squier, GTA and Stock, R and Strobele, H and Struck, C and Susa, T and and Szentpetery, I and Sziklai, J and Toy, M and Trainor, TA and and Trentalange, S and Ullrich, T and Vassiliou, M and Veres, G and and Vesztergombi, G and Vranic, D and Wang, F and Weerasundara, DD and and Wenig, S and Whitten, C and Wienold, T and Wood, L and Xu, N and Yates, and TA and Zimanyi, J and Zhu, XZ and Zybert, R and NA49 Collaboration",
    journal = "PHYSICS LETTERS B",
    year = "1998",
    volume = "444",
    number = "3-4",
    pages = "523-530",
    publisher = "ELSEVIER SCIENCE BV",
    issn = "0370-2693",
    doi = "10.1016/S0370-2693(98)01399-9",
    abstract = "We report measurements of Xi(-) and (Xi)over-bar(+) hyperon absolute
yields as a function of rapidity in 158 GeV/c Ph + Pb collisions. At
midrapidity, dN/dy = 2.29 +/- 0 12 for Xi(-), and 0.52 +/- 0.05 for
(Xi)over-bar(+), leading to the ratio of (Xi)over-bar(+)/Xi(-) = 0.23
+/- 0.03. Inverse slope parameters fitted to the measured transverse
mass spectra are of the order of T approximate to 300 MeV near
mid-rapidity. The estimated total yield of Xi(-) particles in Pb+ Pb
central interactions amounts to 7.4 +/- 1.0 per collision. Comparison to
Xi(-) production in properly scaled p + p reactions at the same energy
reveals a dramatic enhancement (about one order of magnitude) of Xi(-)
production in Pb + Pb central collisions over elementary hadron
interactions. (C) 1998 Elsevier Science B.V. All rights reserved."
}