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Baryon stopping and charged particle distributions in central Pb+Pb collisions at 158-GeV per nucleon (CROSBI ID 85794)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Appelshauser, H. ; Bachler, J. ; Bailey, S.J. ; Barnby, L.S. ; Bartke, J. ; Barton, R.A. ; Bialkowska, H. ; Billmeier, A. ; Blyth, C.O. ; Bock, R. et al. Baryon stopping and charged particle distributions in central Pb+Pb collisions at 158-GeV per nucleon // Physical review letters, 82 (1999), 2471-2475-x

Podaci o odgovornosti

Appelshauser, H. ; Bachler, J. ; Bailey, S.J. ; Barnby, L.S. ; Bartke, J. ; Barton, R.A. ; Bialkowska, H. ; Billmeier, A. ; Blyth, C.O. ; Bock, R. ; Boimska, B. ; Bormann, C. ; Brady, F.P. ; Brockmann, R. ; Brun, R. ; Bunčić, P. ; Caines, H.L. ; Cebra, D. ; Cooper, G.E. ; Cramer, J.G. ; Csato, P. ; Dunn, J. ; Eckardt, V. ; Eckhardt, F. ; Ferguson, M.I. ; Fischer, G.H. ; Flierl, D. ; Fodor, Z. ; Foka, P. ; Freund, P. ; Friese, V. ; Fuchs, M. ; Gabler, F. ; Gal, J. ; Ganz, R. ; Gazdzicki, M. ; Geist, W. ; Gladysz, E. ; Grebieszkow, J. ; Gunther, J. ; Harris, J.W. ; Hegyi, S. ; Henkel, T. ; Hill, L.A. ; Huang, I. ; Hummler, H. ; Igo, G. ; Irmscher, D. ; Jacobs, P. ; Jones, P.G. ; Kadija, Krešo ; Kolesnikov, V.I. ; Kowalski, M. ; Lasiuk, B. ; Levai, P. ; Malakhov, A.I. ; Margetis, S. ; Markert, C. ; Melkumov, G.L. ; Mock, A. ; Molnar, J. ; Nelson, J.M. ; Oldenburg, M. ; Odyniec, G. ; Palla, G. ; Panagiotou, A.D. ; Petridis, A. ; Piper, A. ; Porter, R.J. ; Poskanzer, A.M. ; Poziombka, S. ; Prindle, D.J. ; Puhlhofer, F. ; Reid, J.G. ; Renfordt, R. ; Retyk, W. ; Ritter, H.G. ; Rohrich, D. ; Roland, C. ; Roland, G. ; Rudolph, H. ; Rybicki, A. ; Sandoval, A. ; Sann, H. ; Semenov, A.Yu. ; Schafer, E. ; Schmischke, D. ; Schmitz, N. ; Schonfelder, S. ; Seyboth, P. ; Sikler, F. ; Skrzypczak, E. ; Squier, G.T.A. ; Stock, R. ; Strobele, H. ; Szentpetery, I. ; Sziklai, J. ; Toy, M. ; Trainor, T.A. ; Trentalange, S. ; Ullrich, T. ; Vassiliou, M. ; Vesztergombi, G. ; Vranić, Danilo ; Wang, F. ; Weerasundara, D.D. ; Wenig, S. ; Whitten, C. ; Wienold, T. ; Wood, L. ; Xu, N. ; Yates, T.A. ; Zimanyi, J. ; Zhu, X.Z. ; Zybert, R.

engleski

Baryon stopping and charged particle distributions in central Pb+Pb collisions at 158-GeV per nucleon

Net proton and negative hadron spectra for central PbPb collisions at 158 GeV per nucleon at the CERN SPS were measured and compared to spectra from lighter systems. Net baryon distributions were derived from those of net protons, utilizing model calculations of isospin contributions as well as data and model calculations of strange baryon distributions. Stopping (rapidity shift with respect to the beam) and mean transverse momentum meanpt of net baryons increase with system size. The rapidity density of negative hadrons scales with the number of participant nucleons for nuclear collisions, whereas their meanpt is independent of system size. The meanpt dependence upon particle mass and system size is consistent with larger transverse flow velocity at midrapidity for PbPb compared to SS central collisions.

NA49; heavy ion; stopping; transverse momentum; rapidity; baryon; hadron

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Podaci o izdanju

82

1999.

2471-2475-x

objavljeno

0031-9007

Povezanost rada

Fizika

Indeksiranost