Beam Energy and Centrality Dependence of Two-Pion Bose-Einstein Correlations at SPS Energies

Abstract

Results are presented of a two-pion interferometry (HBT) analysis in Pb+Au collisions at 40, 80, and 158 AGeV. A detailed study of the Bertsch-Pratt HBT radius parameters has been performed as function of the mean pair transverse momentum $k_t$ and in bins of the centrality of the collision. From these results we extract model dependent information about the space-time evolution of the reaction. An investigation of the effective volume of the pion emitting system provides an important tool to study the properties of thermal pion freeze-out.

24 pages, 16 figures, submitted to Nucl.Phys.A; minor changes as proposed by the referees: two short comments added, figure 6 caption changed, english style reviewed, references updated

References in corpus (13)

• Quark Mass and Flavour Dependence of the QCD Phase Transition
• Coalescence and flow in ultra-relativistic heavy ion collisions
• The Time-Delay Signature of Quark-Gluon-Plasma Formation in Relativistic Nuclear Collisions
• Pion Interferometry of $\sqrt{s_{NN}}=130$ GeV Au+Au Collisions at RHIC
• Hadronic Expansion Dynamics in Central Pb+Pb Collisions at 158 GeV per Nucleon
• Hadron freeze-out conditions in high energy nuclear collisions
• Dynamics of Ultra-Relativistic Nuclear Collisions with Heavy Beams: An Experimental Overview
• Hydrodynamics and collective behaviour in relativistic nuclear collisions
• Scaling of Particle and Transverse Energy Production in 208Pb+208Pb collisions at 158 A GeV
• Physics of Coulomb Corrections in Hanbury-Brown Twiss Interferometry in Ultrarelativistic Heavy Ion Collisions
• Universal pion freeze-out phase-space density
• Centrality dependence of the expansion dynamics in Pb-Pb collisions at 158 A GeV/c
• Space-time analysis: HBT at SPS and RHIC

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