We have studied properties and shell structure of the superheavy elements from Z = 102 to Z = 120 within the framework of the RMF theory. The region of study spans nuclides with neutron numbers N = 150 − 190. The Lagrangian model NL-SV1 with the inclusion of the vector self-coupling of the ω-meson has been employed in this work. We have performed RMF + BCS calculations for an axially deformed c...

Dynamical reaction theories are reviewed for synthesis of superheavy elements. Characteristic features of formation and surviving are discussed with reference to possible incident channels. Theoretical predictions are presented on favorable incident channels and on optimum energies for synthesis of Z = 114. 1. Introduction Superheavy elements around Z = 114(or 126) and N = 184 have been believe...

In the standard dark matter scenarios, WIMPs are usually considered to have once been in local thermodynamic equilibrium (LTE), and their present abundance is determined by their self-annihilation cross section. In that case, unitarity and the lower bound on the age of the universe constrains the mass of the relic to be less than 500 TeV. 1 On the other hand, if the DM particles never attained ...

One way to suppress flavor changing neutral currents or CP violating processes in supersymmetry is to make at least some of the first two generations’ scalars superheavy (above ∼ 20TeV). We summarize the motivations and challenges, theoretically and phenomenologically, for superheavy supersymmetry. We then argue for more viable alternatives on the superheavy theme and are led to models where th...

J. C. Pei,1 F. R. Xu,1,2,3,∗ and P. D. Stevenson4 1School of Physics, Peking University, Beijing 100871, China 2Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080, China 3Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Collisions, Lanzhou 730000, China 4Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom (Received 8 N...

The dark matter in the Universe might be composed of superheavy particles (mass > ∼ 10 GeV). These particles can be detected via nuclear recoils produced in elastic scatterings from nuclei. We estimate the observable rate of strongly interacting supermassive particles (simpzillas) in direct dark matter search experiments. The simpzilla energy loss in the Earth and in the experimental shields is...

The phase of inflationary expansion in the early universe produces superheavy relics in a mass window between 10 GeV and 10 GeV. Decay or annihilation of these superheavy relics can explain the observed ultrahigh energy cosmic rays beyond the GreisenZatsepin-Kuzmin cutoff. We emphasize that the pattern of cosmic ray arrival directions seen by the Pierre Auger observatory will decide between the...