Rate of decline of the production cross section of superheavy nuclei with Z=114-117 at high excitation energies; Physical Review C; Vol. 103, iss. 4
| Parent link: | Physical Review C: nuclear physics Vol. 103, iss. 4.— 2021.— [L041601, 12 p.] |
|---|---|
| निगमित लेखक: | |
| अन्य लेखक: | , , , , |
| सारांश: | Title screen The production cross sections of superheavy nuclei with charge numbers 114-117 are predicted in the (5-9)n evaporation channels of the 48Ca-induced complete fusion reactions for future experiments. The estimates of synthesis capabilities are based on a uniform and consistent set of input nuclear data provided by the multidimensional microscopic-macroscopic approach. The contributions of various factors to the final production cross section are discussed. As shown, the specific interplay between survival and fusion probabilities unexpectedly leads to a relatively slow decline of the total cross sections with increasing excitation energy. This effect is supported by a favorable arrangement of fission barriers protecting the compound nucleus against splitting concerning energetic thresholds for the emission of successive neutrons. In particular, the probabilities of the formation of superheavy nuclei in the 5n, 6n, and in some cases even 7n evaporation channels are still promising. This may offer a new opportunity for the future synthesis of unknown neutron-deficient superheavy isotopes. |
| भाषा: | अंग्रेज़ी |
| प्रकाशित: |
2021
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| विषय: | |
| ऑनलाइन पहुंच: | https://doi.org/10.1103/PhysRevC.103.L041601 |
| स्वरूप: | इलेक्ट्रोनिक पुस्तक अध्याय |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=668072 |
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