التفاصيل البيبلوغرافية
| العنوان: |
Selection of cold transfer and enhanced neutron-pair transfer in the 206Pb + 118Sn reaction. |
| المؤلفون: |
von Oertzen, W., Peter, I., Thummerer, S., Bohlen, H. G., Gebauer, B., Gerl, J., Kaspar, M., Kozhoukharov, I., Kröll, T., Rejmund, M., Wollersheim, H. J. |
| المصدر: |
European Physical Journal A -- Hadrons & Nuclei; Apr2004, Vol. 20 Issue 1, p153-156, 4p |
| مصطلحات موضوعية: |
PARTICLES (Nuclear physics), NEUTRONS, DETECTORS, GAMMA decay, GAMMA rays, BINARY number system |
| مستخلص: |
The neutron transfer in a very heavy asymmetric nuclear system, in 206Pb + 118Sn has been measured using particle-γ coincidence techniques with position-sensitive detectors, 5 EUROBALL-Cluster detectors (EB) and the Heidelberg-Darmstadt Nal-CIRYSTAL BALL (CB). The fragments are identified via the known γ-decays of the lowest excited states using the high resolution of EB. Using the unique feature of the set-up with the CB, transfer to well-defined final channels with known quantum numbers is selected using the high-efficiency multiplicity filter of the CB with no second γ-ray, i. e. without feeding. The enhancement in the two-neutron transfer is deduced, for population of the low-lying super-fluid 2+ states in 120Sn and 116Sn, while the 2n-transition remains in the ground state for the recoiling 20XPb-nuclei Large enhancements up to EF ≃ 10³ are observed. This is the first observation of neutron pair-transfer enhancement for a heavy nuclear binary system with superfluid properties with experimentally separated levels. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
