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Expansion dynamics of Pb-Pb collisions at 40 A GeV/c viewed by negatively charged hadrons

Abstract : In this paper we present results on transverse mass spectra and Hanbury-Brown and Twiss correlation functions of negatively charged hadrons, which are expected to be mostly negative pions, measured in Pb-Pb collisions at 40 A GeV/c beam momentum. Based on these data, the collision dynamics and the space-time extent of the system at the thermal freeze-out are studied over a centrality range corresponding to the most central 53% of the Pb--Pb inelastic cross section. Comparisons with freeze-out conditions of strange particles and HBT results from other experiments are discussed.
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http://hal.in2p3.fr/in2p3-00125212
Contributor : Dominique Girod <>
Submitted on : Thursday, January 18, 2007 - 1:49:23 PM
Last modification on : Tuesday, May 4, 2021 - 11:26:07 AM

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F. Antinori, P. Bacon, A. Badalà, R. Barbera, A. Belogianni, et al.. Expansion dynamics of Pb-Pb collisions at 40 A GeV/c viewed by negatively charged hadrons. Journal of Physics G: Nuclear and Particle Physics, IOP Publishing, 2007, 34, pp.403-429. ⟨10.1088/0954-3899/34/3/001⟩. ⟨in2p3-00125212⟩

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