Scale-dependence of transverse momentum correlations in Pb - Au collisions at 158A GeV/c

Adamova, D.; Sedykh, S.; Wessels, J.P.; Petchenova, O.; Damjanovic, S.; Ravinovich, I.; Rak, J.; Ludolphs, W.; Cherlin, A.; Tilsner, H.; Filimonov, K.; Yurevich, V.; Yurevich, S.; Appelshauser, Harald; Xie, W.; Bielcikova, S.; Holeczek, J.; Maas, A.; Panebrattsev, Yu.; Sako, H.; Glassel, P.; Wurm, J.P.; Stachel, Johanna; Schmitz, W.; Pfeiffer, A.; Busch, O.; Petracek, V.; Belaga, V.; Fomenko, K.; Rehak, P.; Sumbera, Michal; Garabatos, C.; Marin, A.; Esumi, S.I.; Radomski, S.; Milov, Alexander M.; Dietrich, L.; Miskowiec, Dariusz; Braun-Munzinger, P.; Drees, A.; Milosevic, J.; Shimansky, S.; Dietel, T.; Tserruya, I.; Fraenkel, Zeev; Ploskon, M.; Tsiledakis, G.; Agakichiev, G.; Kushpil, V.; Antonczyk, D.; Wienold, T.

doi:10.1016/j.nuclphysa.2008.07.014

Article
Report number	arXiv:0803.2407
Title	Scale-dependence of transverse momentum correlations in Pb - Au collisions at 158A GeV/c
Author(s)	Adamova, D. (Rez, Nucl. Phys. Inst.) ; Agakichiev, G. (Darmstadt, GSI) ; Antonczyk, D. (Darmstadt, GSI) ; Appelshauser, Harald (Frankfurt U., Inst. Kernphys.) ; Belaga, V. (Dubna, JINR) ; Bielcikova, S. (Heidelberg U.) ; Braun-Munzinger, P. (Darmstadt, GSI) ; Busch, O. (Darmstadt, GSI) ; Cherlin, A. (Weizmann Inst.) ; Damjanovic, S. (Heidelberg U.) ; Dietel, T. (Heidelberg U.) ; Dietrich, L. (Heidelberg U.) ; Drees, A. (SUNY, Stony Brook) ; Esumi, S.I. (Heidelberg U.) ; Filimonov, K. (Heidelberg U.) ; Fomenko, K. (Dubna, JINR) ; Fraenkel, Zeev (Weizmann Inst.) ; Garabatos, C. (Darmstadt, GSI) ; Glassel, P. (Heidelberg U.) ; Holeczek, J. (Darmstadt, GSI) ; Kushpil, V. (Rez, Nucl. Phys. Inst.) ; Ludolphs, W. (Heidelberg U.) ; Maas, A. (Darmstadt, GSI) ; Marin, A. (Darmstadt, GSI) ; Milosevic, J. (Heidelberg U.) ; Milov, Alexander M. (Weizmann Inst.) ; Miskowiec, Dariusz (Darmstadt, GSI) ; Panebrattsev, Yu. (Dubna, JINR) ; Petchenova, O. (Dubna, JINR) ; Petracek, V. (Heidelberg U.) ; Pfeiffer, A. (CERN) ; Ploskon, M. (Frankfurt U., Inst. Kernphys.) ; Radomski, S. (Darmstadt, GSI) ; Rak, J. (Heidelberg, Max Planck Inst.) ; Ravinovich, I. (Weizmann Inst.) ; Rehak, P. (Brookhaven) ; Sako, H. (Darmstadt, GSI) ; Schmitz, W. (Heidelberg U.) ; Sedykh, S. (Darmstadt, GSI) ; Shimansky, S. (Dubna, JINR) ; Stachel, Johanna (Heidelberg U.) ; Sumbera, Michal (Rez, Nucl. Phys. Inst.) ; Tilsner, H. (Heidelberg U.) ; Tserruya, I. (Weizmann Inst.) ; Tsiledakis, G. (Darmstadt, GSI) ; 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)
Affiliation	(Rez, Nucl. Phys. Inst.) ; (Darmstadt, GSI) ; (Frankfurt U., Inst. Kernphys.) ; (Dubna, JINR) ; (Heidelberg U.) ; (Weizmann Inst.) ; (SUNY, Stony Brook) ; (Heidelberg, Max Planck Inst.) ; (Brookhaven) ; (Munster U.)
Publication	2008
Imprint	18 Mar 2008
Number of pages	23
In:	Nucl. Phys. A 811 (2008) 179-196
DOI	10.1016/j.nuclphysa.2008.07.014
Subject category	Nuclear Physics - Experiment
Accelerator/Facility, Experiment	CERN SPS ; CERES NA45
Abstract	We present results on transverse momentum correlations of charged particle pairs produced in Pb-Au collisions at 158$A$ GeV/$c$ at the Super Proton Synchrotron. The transverse momentum correlations have been studied as a function of collision centrality, angular separation of the particle pairs, transverse momentum and charge sign. We demonstrate that the results are in agreement with previous findings in scale-independent analyses at the same beam energy. Employing the two-particle momentum correlator $<\Delta p_{t,i}, \Delta p_{t,j}>$ and the cumulative $p_t$ variable $x(p_t)$, we identify, using the scale-dependent approach presented in this paper, different sources contributing to the measured correlations, such as quantum and Coulomb correlations, elliptic flow and mini-jet fragmentation.
Copyright/License	Elsevier B.V.