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|Title:||Determination of the nuclear level densities and radiative strength function for 43 nuclei in the mass interval 28≤A≤200|
|Authors:||KNEZEVIC D.; JOVANCEVIC N.; SUKHOVOJ ANATOLY M.; MITSYNA LUDMILA V.; KRMAR MIODRAG; CONG VU D.; HAMBSCH FRANZ-JOSEF; OBERSTEDT STEPHAN; REVAY ZSOLT; STIEGHORST CHRISTIAN; DRAGIC ALEKSANDAR|
|Citation:||EPJ Web of Conferences vol. 169 p. 00007|
|Type:||Articles in periodicals and books|
|Abstract:||The determination of nuclear level densities and radiative strength functions is one of the most important tasks in low-energy nuclear physics. Accurate experimental values of these parameters are critical for the study of the fundamental properties of nuclear structure. The step-like structure in the dependence of the level densities ρ on the excitation energy of nuclei Eex is observed in the two-step gamma cascade measurements for nuclei in the 28 ≤ А ≤ 200 mass region. This characteristic structure can be explained only if a co-existence of quasi-particles and phonons, as well as their interaction in a nucleus, are taken into account in the process of gamma-decay. Here we present a new improvement to the Dubna practical model for the determination of nuclear level densities and radiative strength functions. The new practical model guarantees a good description of the available intensities of the two step gamma cascades, comparable to the experimental data accuracy.|
|JRC Directorate:||Nuclear Safety and Security|
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