Strangeness measurements in NA49 experiment with Pb projectiles

Margetis, S Appelshauser, H Bachler, J Bailey, SJ Barna, D Barnby, LS Bartke, J Baton, RA Bialkowska, H Billmeier, A Blyth, CO Bock, R Bormann, C Brady, FP Brockmann, R Brun, R Buncic, P Caines, HL Carr, LD Cebra, D Cooper, GE Cramer, JG Cristinziani, M Csato, P Dunn, J Eckardt, V Eckhardt, F Ferguson, MI Fischer, HG Flierl, D Fodor, Z Foka, P Freund, P Friese, V Fuchs, M Gabler, F Gal, J Gazdzicki, M Gladysz, E Grebieszkow, J Gunther, J Harris, JW Hegyi, S Henkel, T Hill, LA Hummler, H Igo, G Irmscher, D Jacobs, P Jones, PG Kadija, K Kolesnikov, VI Kowalski, M Lasiuk, B Levai, P Malakhov, AI Markert, C Melkumov, GL Mock, A Molnar, J Nelson, JM Oldenburg, M Odyniec, G Palla, G Panagiotou, AD Petridis, A Piper, A Porter, RJ Poskanzer, AM Prindle, DJ Puhlhofer, F Rauch, W Reid, JG Renfordt, R Retyk, W Ritter, HG Rohrich, D Roland, C Roland, G Rudolph, H Rybicki, A Sandoval, A Sann, H Semenov, AY Schafer, E Schmischke, D Schmitz, N Schonfelder, S Seyboth, P Seyerlein, J Sikler, F Skrzypczak, E Snellings, R Squier, GTA Stock, R Strobele, H Struck, C Szentpetery, I Sziklai, J Toy, M Trainor, TA Trentalange, S Ullrich, T Vassiliou, M Veres, G Vesztergombi, G Vranic, D Wang, F Weerasundara, DD Wenig, S Whitten, C Wienold, T Wood, L Xu, N Yates, TA Zimanyi, J Zhu, XZ Zybert, R

S. Margetis et al., Strangeness measurements in NA49 experiment with Pb projectiles, J PHYS G-NU, 25(2), 1999, pp. 189-197

16

INGLESE

Article

Physics

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS

0954-3899 → ACNP

25

2

1999

189 - 197

ISI

0954-3899(199902)25:2<189:SMINEW>2.0.ZU;2-4

Charged and neutral strange particle production was studied by the NA49 exp eriment at CERN. Preliminary inclusive spectra are presented for K+/-, K-S( 0), Phi, Lambda, <(Lambda)over bar> and Xi(+/-) particles, measured in a re gion close to mid-rapidity, for central Pb+Pb collisions at 158 GeV per nuc leon. An enhanced strange particle production relative to properly scaled e lementary nucleon-nucleon collisions is observed, but its strength is simil ar to lighter S + nucleus systems. The enhancement is stronger for multistr ange particles.