Página principal > Modification of jet-like correlations in Pb - Au collisions at 158A GeV/c |
Article | |
Report number | arXiv:0904.2973 |
Title | Modification of jet-like correlations in Pb - Au collisions at 158A GeV/c |
Author(s) |
Adamova, D. (Rez, Nucl. Phys. Inst.) ; Agakichiev, G. (Darmstadt, GSI) ; Antonczyk, D. (Frankfurt U., Inst. Kernphys.) ; Appelshauser, H. (Frankfurt U., Inst. Kernphys.) ; Belaga, V. (Dubna, JINR) ; Bielcikova, J. (Heidelberg, Max Planck Inst. ; Heidelberg U.) ; Braun-Munzinger, P. (Darmstadt, GSI ; Darmstadt, Tech. Hochsch. ; Darmstadt, EMMI ; Frankfurt U., FIAS) ; Busch, O. (Heidelberg U.) ; Cherlin, A. (Weizmann Inst.) ; Damjanovic, S. (Heidelberg U.) ; Dietel, T. (Munster U.) ; Dietrich, L. (Heidelberg U.) ; Drees, A. (SUNY, Stony Brook) ; Dubitzky, W. (Heidelberg U.) ; Esumi, S.I. (Heidelberg U.) ; Filimonov, K. (Heidelberg U.) ; Fomenko, K. (Dubna, JINR) ; Fraenkel, Z. (Weizmann Inst.) ; Garabatos, C. (Darmstadt, GSI) ; Glassel, P. (Heidelberg U.) ; Holeczek, J. (Darmstadt, GSI) ; Kalisky, M. (Munster U.) ; Kniege, S. (Frankfurt U., Inst. Kernphys.) ; Kushpil, V. (Rez, Nucl. Phys. Inst.) ; Maas, A. (Darmstadt, GSI) ; Marin, A. (Darmstadt, GSI) ; Milosevic, J. (Heidelberg U.) ; Milov, A. (Weizmann Inst.) ; Miskowiec, D. (Darmstadt, GSI) ; Panebrattsev, Yu. (Dubna, JINR) ; Petchenova, O. (Dubna, JINR) ; Petracek, V. (Heidelberg U.) ; Pfeiffer, A. (CERN) ; Ploskon, M. (Frankfurt U., Inst. Kernphys.) ; Rak, J. (Heidelberg, Max Planck Inst.) ; Ravinovich, I. (Weizmann Inst.) ; Rehak, P. (Brookhaven) ; Sako, H. (Darmstadt, GSI) ; Schmitz, W. (Heidelberg U.) ; Schuchmann, S. (Frankfurt U., Inst. Kernphys.) ; Sedykh, S. (Darmstadt, GSI) ; Shimansky, S. (Dubna, JINR) ; Stachel, J. (Heidelberg U.) ; Sumbera, M. (Rez, Nucl. Phys. Inst.) ; Tilsner, H. (Heidelberg U.) ; Tserruya, I. (Weizmann Inst.) ; Wessels, J.P. (Munster U.) ; Wienold, T. (Heidelberg U.) ; Wurm, J.P. (Heidelberg, Max Planck Inst.) ; Xie, W. (Weizmann Inst.) ; Yurevich, S. (Heidelberg U.) ; Yurevich, V. (Dubna, JINR) |
Publication | 2009 |
Imprint | 21 Apr 2009 |
Number of pages | 15 p, 15 |
Note | Comments: 4 figures 4 figures |
In: | Phys. Lett. B 678 (2009) 259-263 |
DOI | 10.1016/j.physletb.2009.05.048 |
Subject category | Nuclear Physics - Experiment |
Accelerator/Facility, Experiment | CERN SPS ; CERES NA45 |
Abstract | Results of a two-particle correlation analysis of high-pt charged particles in Pb–Au collisions at 158A GeV/c are presented. The data have been recorded by the CERESexperiment at the CERN-SPS. The correlations are studied as function of transverse momentum, particle charge and collision centrality. We observe a jet-like structure in the vicinity of a high-pt trigger particleand a broad back-to-back distribution. The yields of associated particles per trigger show a strongdependence on the trigger/associate charge combination. A comparison to PYTHIA confirmsthe jet-likepattern at the near-side but suggestsa strongmodification at the away-side, implyingsignificant energy transferof the hard-scattered parton to the medium. |
Copyright/License | Elsevier B.V. |