This title appears in the Scientific Report :
2005
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevLett.95.162701 in citations.
Please use the identifier: http://hdl.handle.net/2128/1657 in citations.
Fast decision in favor of the slow fission process
Fast decision in favor of the slow fission process
The fission probability P-f of highly excited targetlike nuclei produced in reactions of 2.5 GeV protons on Au, Bi, and U was studied as a function of excitation energy E-* whereby E-* is deduced eventwise from the multiplicity of evaporated light particles. At the highest E-* of 1000 MeV P-f amount...
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Personal Name(s): | Tishchenko, V. |
---|---|
Herbach, C. M. / Hilscher, D. / Jahnke, U. / Galin, J. / Goldenbaum, F. / Letourneau, A. / Schröder, U. | |
Contributing Institute: |
Institut 1 (Experimentelle Kernphysik I); IKP-E-I |
Published in: | Physical review letters, 95 (2005) S. 162701 |
Imprint: |
College Park, Md.
APS
2005
|
Physical Description: |
162701 |
DOI: |
10.1103/PhysRevLett.95.162701 |
Document Type: |
Journal Article |
Research Program: |
Physik der Hadronen |
Series Title: |
Physical Review Letters
95 |
Subject (ZB): | |
Link: |
Get full text OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/1657 in citations.
The fission probability P-f of highly excited targetlike nuclei produced in reactions of 2.5 GeV protons on Au, Bi, and U was studied as a function of excitation energy E-* whereby E-* is deduced eventwise from the multiplicity of evaporated light particles. At the highest E-* of 1000 MeV P-f amounts to approximate to 30% with all 3 target nuclei irrespective of the initial fissility. Statistical-model calculations satisfactorily reproduce the observed evolution of P-f with E-*-provided that no extra transient delay is introduced. Fission thus is decided upon very fast and early in the long deexcitation chain towards scission which comprises as much as approximate to 80% of all evaporated alpha particles. |