Fragmentation cross-sections and binding energies of neutron-rich nuclei
| Autor: | Tsang, M. B., Lynch, W. G., Friedman, W. A., Mocko, M., Sun, Z. Y., Aoi, N., Cook, J. M., Delaunay, F., Famiano, M. A., Hui, H., Imai, N., Iwasaki, H., Motobayashi, T., Niikura, M., Onishi, T., Rogers, A. M., Sakurai, H., Suzuki, H., Takeshita, E., Takeuchi, S., Wallace, M. S. |
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| Rok vydání: | 2007 |
| Předmět: | |
| Zdroj: | Phys.Rev.C76:041302,2007 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevC.76.041302 |
| Popis: | An exponential dependence of the fragmentation cross-section on the average binding energy is observed and reproduced with a statistical model. The observed functional dependence is robust and allows the extraction of binding energies from measured cross-sections. From the systematics of 75,77,78,79Cu isotope cross-sections have been extracted. They are 636.94 +/- 0.40 MeV, 647.1 +/- 0.4 MeV, 651.6 +/- 0.4 MeV and 657.8 +/- 0.5 MeV, respectively. Specifically, the uncertainty of the binding energy of 75Cu is reduced from 980 keV (listed value in the 2003 mass table of Audi and Wapstra) to 400 keV. The predicted cross-sections of two near drip-line nuclei, 39Na and 40Mg, from the fragmentation of 48Ca are discussed. Comment: 12 pages, 3 figures |
| Databáze: | arXiv |
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