Effects of nuclear orientation on fusion and fission in the reaction using 238U target nucleus
Fission fragment mass distributions in the reaction of 30Si+238U were measured around the Coulomb barrier. At the above-barrier energies, the mass distribution showed a Gaussian shape. At the subbarrier energies, triple-humped distribution was observed, which consists of symmetric fission and asymmetric fission peaked at AL/AH ~ 90/178. The asymmetric fission should be attributed to quasifission from the results of the measured evaporation residue (ER) cross-sections for 30Si+238U. The cross-section for 263Sg at the abovebarrier energy agree with the statistical model calculation which assumes that the measured fission cross-section originates from fusion-fission, whereas the one for 264 Sg measured at the sub-barrier energy is smaller than the calculation, which suggests the presence of quasifission.
| Author: | Katsuhisa Nishio, Hiroshi Ikezoe, Shinichi Mitsuoka, Ichiro Nishinaka, Yuichiro Nagame, Tsutomu Ohtsuki, Katsuhisa Hirose, Stefan Hofmann |
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| URN: | urn:nbn:de:hebis:30-102044 |
| Document Type: | Article |
| Language: | English |
| Date of Publication (online): | 29.04.2011 |
| Year of first Publication: | 2010 |
| Publishing Institution: | Univ.-Bibliothek Frankfurt am Main |
| Source: | EPJ Web of Conferences 2, 10001 (2010) ; DOI 10.1051/epjconf/20100210001 ; CNR*09 - Second International Workshop on Compound Nuclear Reactions and Related Topics |
| HeBIS PPN: | 246166584 |
| Institutes: | Physik |
| Dewey Decimal Classification: | 530 Physik |
| Sammlungen: | Universitätspublikationen |
| Note: | This is an Open Access article distributed under the terms of the Creative Commons Attribution-Noncommercial License, which permits unrestricted use, distribution, and reproduction in any noncommercial medium, provided the original work is properly cited. |
| Licence (German): |  Veröffentlichungsvertrag für Publikationen ohne Print on Demand |
