We show that superheavy threshold corrections in the New Minimal Supersymmetric GUT based on the SO(10) Higgs system 210 ⊕ 126 ⊕ 126 ⊕ 10 ⊕ 120 can comfortably correct the prediction for the value of α3(MZ) from the relatively large value predicted by the two loop RG equations to the central value determined by the current world average. The unification scale is raised above the one loop value ...

We construct a hybrid inflationary model associated with the superheavy scale MX ≃ 2 × 1016 GeV of the minimal supersymmetric standard model which is based on the simplest superpotential for symmetry breaking and in which the inflaton potential along the inflationary trajectory is essentially provided by quasi-canonical supergravity. The resulting spectrum of adiabatic density pertubations is b...

The recent discovery of isotopes with Z=110–111 suggests evidence for (1) a monopole–monopole interaction that does not appear explicitly in Nilsson– Strutinsky mass systematics, and (2) a competition between SU(2) and SU(3) dynamical symmetries that has been predicted for this region. Our calculations suggest that these new isotopes are near spherical, and may represent a true island of superh...

Dynamical treatments of fission processes are briefly reviewed with an emphasis on the strong dissipation or friction for collective motions of nuclei in high excitation. The theories are applied to synthesis of superheavy elements. Characteristic features of formation and surviving are discussed with reference to possible incident channels. Theoretical prediction are presented on favorable inc...

In light of the mounting evidence that the highest energy cosmic rays are dominated by protons and not gammarays, we discuss the prospect that these cosmic rays are generated in the decay or annihilation of superheavy relic particles. We calculate the high energy neutrino spectrum which results and normalize our results to the ultrahigh energy cosmic ray spectrum. We show that most scenerios ar...

Starting from non-minimal supergravity theory with unified gauge symmetry, we obtain the low-energy effective theory by taking the flat limit and integrating out the superheavy fields in a model-independent manner. The scalar potential has extra non-universal contributions to soft supersymmetry breaking terms which can give an impact on phenomenological study. 1 Talk presented at YKIS’95, Kyoto...

The current status of the application of covariant density functional theory to microscopic description of nuclear fission with main emphasis on superheavy nuclei (SHN) is reviewed. The softness of SHN in the triaxial plane leads to an emergence of several competing fission pathes in the region of the inner fission barrier in some of these nuclei. The outer fission barriers of SHN are considera...

Following the early discovery of two-quasiparticle, high-K isomers in Fm (Z =100) and No (Z = 102) by Ghiorso et al. [1], a number of spectroscopic studies were carried out in the Fermium region, which have different sensitivities both in terms of decay branches (e.g. decay,  decay, fission, etc.) and lifetime ranges. There has been continuing activity in addressing the complex question of w...

We present a model with minimal assumptions for nonthermal leptogenesis with almost degenerate superheavy right-handed neutrinos in a supersymmetric setup. In this scenario the gauge singlet inflaton is directly coupled to the right-handed ~s!neutrinos with a mass heavier than the inflaton mass. This helps to avoid potential problems which can naturally arise otherwise. The inflaton decays into...

M. Bender,* K. Rutz, P.-G. Reinhard, J. A. Maruhn, and W. Greiner Institut für Theoretische Physik, Universität Frankfurt, Robert-Mayer-Strasse 10, D-60325 Frankfurt am Main, Germany Institut für Theoretische Physik II, Universität Erlangen-Nürnberg, Staudtstrasse 7, D-91058 Erlangen, Germany Gesellschaft für Schwerionenforschung mbH, Planckstrasse 1, D-64291 Darmstadt, Germany Joint Institute ...