Time Scales in Spectator Fragmentation

Authors: C. Schwarz for the ALADIN collaboration
Published: Proceedings of 3rd Catania Relativistic Ion Studies On Phase Transitions In Strong Interactions: Status And Perspectives (CRIS 2000) 22-26 May 2000, Acicastello, Italy
Nucl. Phys. A681(2001)279c [->Spires]
Preprint nucl-ex/0009006
Abstract: Proton-proton correlations and correlations of p-alpha, d-alpha, and t-alpha from spectator decays following 197Au + 197Au collisions at 1000 AMeV have been measured with an highly efficient detector hodoscope. The constructed correlation functions indicate a moderate expansion and low breakup densities similar to assumptions made in statistical multifragmentation models. In agreement with a volume breakup rather short time scales were deduced employing directional cuts in proton-proton correlations.

PACS numbers: 25.70.Pq, 21.65.+f, 25.70.Mn

Paper: Postscript 8 pages with 5 embedded figures
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