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arXiv · 1308.5302

Sequential fissions of heavy nuclear systems

Diego Gruyer·J. D. Frankland·E. Bonnet·M. Boisjoli·A. Chbihi·L. Manduci·P. Marini·K. Mazurek·P. N. Nadtochy
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Abstract

In Xe+Sn central collisions from 12 to 20 MeV/A measured with the INDRA 4$π$ multidetector, the three-fragment exit channel occurs with a significant cross section. In this contribution, we show that these fragments arise from two successive binary splittings of a heavy composite system. Strong Coulomb proximity effects are observed in the three-fragment final state. By comparison with Coulomb trajectory calculations, we show that the time scale between the consecutive break-ups decreases with increasing bombarding energy, becoming compatible with quasi-simultaneous multifragmentation above 18 MeV/A.

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Diego Gruyer, J. D. Frankland, E. Bonnet, M. Boisjoli, A. Chbihi, L. Manduci, P. Marini, K. Mazurek, P. N. Nadtochy. 2013-08-24. Sequential fissions of heavy nuclear systems. https://doi.org/10.1051/epjconf%2F20136207006

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