/ Experiment-Nucl arXiv:0809.1445

Three-Dimensional two-pion source image from Pb+Pb Collisions at s(NN)**(1/2) = 17.3-GeV: New constraints for source breakup dynamics

Alt, C. (Frankfurt U.) ; Anticic, T. (Boskovic Inst., Zagreb) ; Baatar, B. (Dubna, JINR) ; Barna, D. (Budapest, RMKI) ; Bartke, J. (Cracow, INP) ; Betev, L. (CERN) ; Bialkowska, H. (Warsaw, Inst. Nucl. Studies) ; Blume, C. (Frankfurt U.) ; Boimska, B. (Warsaw, Inst. Nucl. Studies) ; Botje, M. (NIKHEF, Amsterdam) ; Bracinik, J. (Comenius U.) ; Bramm, R. (Frankfurt U.) ; Buncic, P. (CERN) ; Cerny, V. (Comenius U.) ; Christakoglou, P. (Athens U.) ; Chung, P. (SUNY, Stony Brook, Chem. Dept.) ; Chvala, O. (Charles U.) ; Cramer, J.G. (CENPA, Seattle) ; Csato, P. (Budapest, RMKI) ; Dinkelaker, P. (Frankfurt U.) ; Eckardt, V. (Munich, Max Planck Inst.) ; Flierl, D. (Frankfurt U.) ; Fodor, Z. (Budapest, RMKI) ; Foka, P. (Darmstadt, GSI) ; Friese, V. (Darmstadt, GSI) ; Gal, J. (Budapest, RMKI) ; Gazdzicki, M. (Jan Kochanowski U.) ; Genchev, V. (Sofiya, Inst. Nucl. Res.) ; Georgopoulos, G. (Athens U.) ; Gladysz, E. (Cracow, INP) ; Grebieszkow, K. (Warsaw U. of Tech.) ; Hegyi, S. (Budapest, RMKI) ; Hohne, C. (Darmstadt, GSI) ; Kadija, K. (Boskovic Inst., Zagreb) ; Karev, A. (Munich, Max Planck Inst.) ; Kikola, D. (Warsaw U. of Tech.) ; Kliemant, M. (Frankfurt U.) ; Kniege, S. (Frankfurt U.) ; Kolesnikov, V.I. (Dubna, JINR) ; Kornas, E. (Cracow, INP) ; Korus, R. (Jan Kochanowski U.) ; Kowalski, M. (Cracow, INP) ; Kraus, I. (Darmstadt, GSI) ; Kreps, M. (Comenius U.) ; Laszlo, A. (Budapest, RMKI) ; Lacey, R. (SUNY, Stony Brook, Chem. Dept.) ; van Leeuwen, M. (NIKHEF, Amsterdam) ; Levai, P. (Budapest, RMKI) ; Litov, L. (Sofiya U.) ; Lungwitz, B. (Frankfurt U.) ; Makariev, M. (Sofiya U.) ; Malakhov, A.I. (Dubna, JINR) ; Mateev, M. (Sofiya U.) ; Melkumov, G.L. (Dubna, JINR) ; Mischke, A. (NIKHEF, Amsterdam) ; Mitrovski, M. (Frankfurt U.) ; Molnar, J. (Budapest, RMKI) ; Mrowczynski, St. (Jan Kochanowski U.) ; Nicolic, V. (Boskovic Inst., Zagreb) ; Palla, G. (Budapest, RMKI) ; Panagiotou, A.D. (Athens U.) ; Panayotov, D. (Sofiya U.) ; Petridis, A. (Athens U.) ; Peryt, W. (Warsaw U. of Tech.) ; Pikna, M. (Comenius U.) ; Pluta, J. (Warsaw U. of Tech.) ; Prindle, D. (CENPA, Seattle) ; Puhlhofer, F. (Marburg U., ITP) ; Renfordt, R. (Frankfurt U.) ; Roland, C. (MIT) ; Roland, G. (MIT) ; Rybczynski, M. (Jan Kochanowski U.) ; Rybicki, A. (Cracow, INP) ; Sandoval, A. (Darmstadt, GSI) ; Schmitz, N. (Munich, Max Planck Inst.) ; Schuster, T. (Frankfurt U.) ; Seyboth, P. (Munich, Max Planck Inst.) ; Sikler, F. (Budapest, RMKI) ; Sitar, B. (Comenius U.) ; Skrzypczak, E. (Warsaw U.) ; Slodkowski, M. (Warsaw U. of Tech.) ; Stefanek, G. (Jan Kochanowski U.) ; Stock, R. (Frankfurt U.) ; Strabel, C. (Frankfurt U.) ; Strobele, H. (Frankfurt U.) ; Susa, T. (Boskovic Inst., Zagreb) ; Szentpetery, I. (Budapest, RMKI) ; Sziklai, J. (Budapest, RMKI) ; Szuba, M. (Warsaw U. of Tech.) ; Szymanski, P. (Warsaw, Inst. Nucl. Studies) ; Trubnikov, V. (Warsaw, Inst. Nucl. Studies) ; Varga, D. (CERN) ; Vassiliou, M. (Athens U.) ; Veres, G.I. (MIT) ; Vesztergombi, G. (Budapest, RMKI) ; Vranic, D. (Darmstadt, GSI) ; Wetzler, A. (Frankfurt U.) ; Wlodarczyk, Z. (Jan Kochanowski U.) ; Wojtaszek, A. (Jan Kochanowski U.) ; Yoo, I.K. (Pusan Natl. U.) ; Zimanyi, J. (Budapest, RMKI) ; Alexander, J.M. (SUNY, Stony Brook, Chem. Dept.) ; Danielewicz, P. (Michigan State U.) ; Kisiel, A. (Ohio State U.) ; Pratt, S. (NIKHEF, Amsterdam)

Published in: Phys.Lett.
Year: 2010
Vol.: B685
Page No: 41-46
Pages: 6

Abstract: Source imaging methodology is used to provide a three-dimensional two-pion source function for mid-rapidity pion pairs with $p_T<70$ MeV/c in central ($0-7%$) Pb+Pb collisions at $\sqrt s_{NN}$=17.3 GeV. Prominent non-Gaussian tails are observed in the pion pair transverse momentum (outward) and in the beam (longitudinal) directions. Model calculations reproduce them with the assumption of Bjorken longitudinal boost invariance and transverse flow blast-wave dynamics coupled with 'outside-in burning' in the transverse direction/ they also yield a proper time for breakup and emission duration for the pion source.

Keyword(s): 3D-imaging ; HBT ; Emission life time

Web-Page: http://inspirebeta.net/record/796020/files/na49_fig1b_ppg.png; http://inspirebeta.net/record/796020/files/na49_fig2b_ppg.png; http://inspirebeta.net/record/796020/files/na49_fig3b_ppg.png; http://inspirebeta.net/record/796020/files/na49_fig4b_ppg.png

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