Hindrance ofO16+Pb208fusion at extreme sub-barrier energies
نویسندگان
چکیده
منابع مشابه
Hindrance of Heavy-ion Fusion at Extreme Sub-Barrier Energies in Open-shell Colliding Systems
The excitation function for the fusion-evaporation reaction Ni + Mo has been measured down to a cross-section of ∼ 5 nb. Extensive coupled-channels calculations have been performed, which cannot reproduce the steep fall-off of the excitation function at extreme sub-barrier energies. Thus, this system exhibits a hindrance for fusion, a phenomenon that has been discovered only recently. In the S-...
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Interest in extremely high energy cosmic rays has increased rapidly in the last decade. More important perhaps is that that interest now extends well beyond the \usual suspects" to include members of the wider astrophysics and high energy physics communities. Factors which have contributed to this development include: a keener appreciation of the diiculties associated with cosmic ray production...
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The role of higher order coupling of surface vibrations to the relative motion in heavyion fusion reactions at near-barrier energies is investigated. The coupled channels equations are solved to all orders, and also in the linear and the quadratic coupling approximations. Taking Ni + Zr reactions as examples, it is shown that all order couplings lead to considerably improved agreement with the ...
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Coincidence measurements of breakup fragments were carried out for the 7Li + 197Au and 204Pb systems at sub-barrier energies. The mechanisms triggering breakup, and time-scales of each process, were identified through the reaction Q-values and the relative energy of the breakup fragments. Binary breakup of 7Li were found to be predominantly triggered by nucleon transfer, with p-pickup leading t...
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ژورنال
عنوان ژورنال: Physical Review C
سال: 2007
ISSN: 0556-2813,1089-490X
DOI: 10.1103/physrevc.76.054609