In the unconstrained MSSM, we reanalyze the constraints on the phases of supersymmetric flavour conserving couplings that follow from the electron and neutron electric dipole moments (EDM). We find that the constraints become weak if at least one exchanged superpartner mass is > O(1 TeV) or if we accept large cancellations among different contributions. However, such cancellations have no evide...

During the Second World War, Canada made several important contributions to wartime nuclear research efforts. The three main were: establishing a domestic laboratory in Montreal investigate heavy water reactor; creating supply chains provide uranium oxide, water, and polonium Manhattan Project; direct of Canadians living United States project. These efforts helped establish legacy that has pers...

The thermodynamical properties of the main phases of metallic polonium are examined using density functional theory. The exceptional nature of the solid-solid phase transition of alpha to beta Po is underlined: it induces a lowering in symmetry, from cubic to rhombohedral, with increasing temperature. This is explained as the result of a delicate balance between bonding and entropic effects. Ov...

The aim of this study was to test a possible use of Urtica dioica (common nettle) plant as a biomonitor of polonium (210)Po and lead (210)Pb contamination near phosphogypsum stacks by determining concentrations of these radionuclides in samples collected from the area of phosphogypsum stockpile in Wiślinka (northern Poland). The (210)Po and (210)Pb contents in roots depended on their concentrat...