Bimodality in spectator fragmentation

W. Trautmann; the ALADIN Collaboration

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arXiv · 0705.0678

Bimodality in spectator fragmentation

W. Trautmann·the ALADIN Collaboration

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Abstract

The fluctuations of the largest fragment charge of a partition and of the charge asymmetries of the two or three largest fragments in spectator decays following 197Au + 197Au collisions at 1000 MeV per nucleon are investigated. The observed bimodal distributions at specific values of the sorting variable Z_bound exhibit features known from percolation theory where they appear as finite-size effects. The underlying configurational fluctuations seem generic for fragmentation processes in small systems.

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W. Trautmann, the ALADIN Collaboration. 2007-05-04. Bimodality in spectator fragmentation. https://arxiv.org/abs/0705.0678

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