NDLI: Measurement of evaporation residue cross-sections of the reaction 30Si + 238U at subbarrier energies

Content Provider	Springer Nature Link
Author	Nishio, K. Hofmann, S. Heßberger, F. P. Ackermann, D. Antalic, S. Comas, V. F. Gan, Z. Heinz, S. Heredia, J. A. Ikezoe, H. Khuyagbaatar, J. Kindler, B. Kojouharov, I. Kuusiniemi, P. Lommel, B. Mann, R. Mazzocco, M. Mitsuoka, S. Nagame, Y. Ohtsuki, T. Popeko, A. G. Saro, S. Schött, H. J. Suligna, B. Svirikhin, A. Tsukada, K. Tsuruta, K. Yeremin, A. V.
Copyright Year	2006
Abstract	The reaction 30Si + 238U → 268Sg* was studied at beam energies close to the Coulomb barrier. At a center-of-mass energy of E c.m. = 144.0MeV for reactions at half thickness of the target we measured three decay chains of 263Sg produced by evaporation of five neutrons. The cross-section was ( 67+67 -37) pb. At E c.m. = 133.0MeV we measured three spontaneously fissioning nuclei which we assigned to the isotope 264Sg. The production cross-section was ( 10+10 -6) pb and a half-life of ( 120+126 -44) ms was determined. This half-life is a factor of twenty shorter than theoretical predictions. At E c.m. = 128.0MeV an upper cross-section limit of 15pb 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 16O + 238U → 254Fm*, a reduction of the fusion probability was observed at low beam energies indicating increasing competition from quasifission processes.
Starting Page	281
Ending Page	287
Page Count	7
File Format	PDF
ISSN	14346001
Journal	The European Physical Journal A - Hadrons and Nuclei
Volume Number	29
Issue Number	3
e-ISSN	1434601X
Language	English
Publisher	Società Italiana di Fisica
Publisher Date	2006-09-14
Publisher Place	Bologna
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Elementary Particles and Nuclei Nuclear Physics, Heavy Ions, Hadrons Nuclear Fusion
Content Type	Text
Resource Type	Article
Subject	Nuclear and High Energy Physics

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