Dresden 2000 – scientific programme

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HK: Physik der Hadronen und Kerne

HK 12: Physik mit schweren Ionen III / Kernphysik

HK 12.7: Talk

Monday, March 20, 2000, 18:15–18:30, B 98

Time Scales in Spectator Fragmentation — •Carsten Schwarz — Planckstr. 1 64291 Darmstadt

Proton-proton correlations and correlations of p-α, d-α, and t-α 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.