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arXiv · 1005.1236

Structural effects in the nuclide distributions of the residues of highly excited systems

P. Napolitani·F. Rejmund·L. Tassan-Got·M. V. Ricciardi·A. Kelic·K. -H. Schmidt·O. Yordanov·A. V. ignatyuk·C. villagrasa
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Abstract

New data from GSI on the production-cross-section for fragmentation of the systems 56Fe+p and 56Fe+Ti at 1 A GeV revealed the appearance of even-odd staggering in the cross-section distribution for chains of isotopes with given N-Z. The staggering is strongly enhanced for the chain N=Z, it reduces as the production moves away from the N=Z chain, and it reverses for the most neutron-rich odd-A residues. These phenomena, observed in the residues of rather violent reactions, are related to structural effects in the level-densities below the particle-emission threshold.

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P. Napolitani, F. Rejmund, L. Tassan-Got, M. V. Ricciardi, A. Kelic, K. -H. Schmidt, O. Yordanov, A. V. ignatyuk, C. villagrasa. 2010-05-07. Structural effects in the nuclide distributions of the residues of highly excited systems. https://doi.org/10.1142/s0218301304002144

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