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Fri, 14 Jul 2006 10:32:02 +0200Fri, 14 Jul 2006 10:32:02 +0200Two-dimensional nuclear inertia : analytical relationships
http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/2377
The components of the nuclear inertia tensor, functions of the separation distance R and of the radius of the light fragment R2, BRR(R,R2), BRR2(R,R2), and BR2R2(R,R2) are calculated within the Werner-Wheeler approximation, by using the parametrization of two intersected symmetric or asymmetric spheres. Analytical relationships are derived. When projected to a path R2=R2(R), the reduced mass is obtained at the touching point. The two one-dimensional parametrizations with R2=const, and the volume V2=const previously studied, are found to be particular cases of the present more general approach. Illustrations for the cold fission, cluster radioactivity, and α decay of 252Cf are given.Radu A. Gherghescu; Walter Greiner; Dorin N. Poenaruarticlehttp://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/2377Fri, 14 Jul 2006 10:32:02 +020012C emission from 114Ba and nuclear properties
http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/2404
We investigate the influence of nuclear masses, radii, and interaction potentials on 12C radioactivity of 114the best representative of a new island of cluster emitters leading to daughter nuclei around the doubly magic 100Sn. Three different models are considered: one derived by Blendowske, Fliessbach, and Walliser (BFW) from the many-body theory of alpha decay, as well as our analytical (ASAF) and numerical (NuSAF) superasymmetric fission models. A Q value larger by 1 MeV or an ASAF potential barrier reduced by 3% are producing a half-life shorter by 2 orders of magnitude. A similar effect can be obtained within BFW and NuSAF by a decrease of the action integral with less than 10% and 5%, respectively. By increasing the radius constant within ASAF or BFW models by 10%, the half-life becomes shorter by 3 orders of magnitude.Dorin N. Poenaru; Walter Greiner; E. Houraniarticlehttp://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/2404Wed, 12 Jul 2006 09:54:53 +0200