Measurement of evaporation residue cross-sections of the reaction Si-30+U-238 at subbarrier energies
文献类型：期刊论文
| 作者 | Nishio, K.; Hofmann, S.; Hessberger, F. P.; Ackermann, D.; Antalic, S.; Comas, V. F.; Gan, Z.; Heinz, S.; Heredia, J. A.; Ikezoe, H. |
| 刊名 | EUROPEAN PHYSICAL JOURNAL A
 |
| 出版日期 | 2006-09-01 |
| 卷号 | 29页码:281-287 |
| ISSN号 | 1434-6001 |
| DOI | 10.1140/epja/i2006-10091-y |
| 英文摘要 | The reaction Si-30 + U-238 -> (268)Sg* was studied at beam energies close to the Coulomb barrier. At a center-of-mass energy of E-c.m. = 144.0 MeV for reactions at half thickness of the target we measured three decay chains of (263)Sg produced by evaporation of five neutrons. The cross-section was (67(-37)(+67)) pb. At E-c.m. =133.0 MeV we measured three spontaneously fissioning nuclei which we assigned to the isotope (264)Sg. The production cross-section was (10(-6)(+10)) pb and a half-life of (120(-44)(+126)) ms was determined. This half-life is a factor of twenty shorter than theoretical predictions. At E-c.m. = 128.0 MeV an upper cross-section limit of 15 pb was measured. The cross-section data reveal a strong influence of the orientation of the deformed target nucleus on the production yield. Compared to excitation functions measured for the lighter system O-16 + U-238 -> Fm-254 double dagger, a reduction of the fusion probability was observed at low beam energies indicating increasing competition from quasifission processes. |
| WOS关键词 | HEAVIEST ELEMENTS ; SPONTANEOUS-FISSION ; DECAY PROPERTIES ; FUSION ; NUCLEI |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000240852800004 |
| 出版者 | SPRINGER |
| 源URL | [http://119.78.100.186/handle/113462/26611]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Nishio, K. |
| 作者单位 | 1.Gesell Schwerionenforsch mbH, D-64220 Darmstadt, Germany 2.Japan Atom Energy Agcy, Tokai, Ibaraki 3191195, Japan 3.Univ Frankfurt, Inst Kernphys, D-60486 Frankfurt, Germany 4.Comenius Univ, Dept Nucl Phys, SK-84215 Bratislava, Slovakia 5.Higher Inst Technol & Appl Sci, Havana 10400, Cuba 6.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 7.St Petersburg State Univ, St Petersburg 198504, Russia 8.Univ Oulu, CUPP, FIN-86801 Pyhajarvi, Finland 9.Tohoku Univ, Nucl Sci Lab, Sendai, Miyagi 9820826, Japan 10.Joint Inst Nucl Res, Flerov Lab Nucl React, Dubna 141980, Russia |
| 推荐引用方式 GB/T 7714 | Nishio, K.,Hofmann, S.,Hessberger, F. P.,et al. Measurement of evaporation residue cross-sections of the reaction Si-30+U-238 at subbarrier energies[J]. EUROPEAN PHYSICAL JOURNAL A,2006,29:281-287. |
| APA | Nishio, K..,Hofmann, S..,Hessberger, F. P..,Ackermann, D..,Antalic, S..,...&Yeremin, A. V..(2006).Measurement of evaporation residue cross-sections of the reaction Si-30+U-238 at subbarrier energies.EUROPEAN PHYSICAL JOURNAL A,29,281-287. |
| MLA | Nishio, K.,et al."Measurement of evaporation residue cross-sections of the reaction Si-30+U-238 at subbarrier energies".EUROPEAN PHYSICAL JOURNAL A 29(2006):281-287. |
入库方式： OAI收割
来源：近代物理研究所
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