Fission fragment mass-angle correlations and mass ratio distributions have been measured for the reactions 16O+186Os, 24Mg+178Hf, 34S+168Er, and 48Ti+154Sm, forming the 202Po composite nucleus, at near barrier energies. Systematic analysis based on the expected dependence of the variance of the mass distribution on the angular momentum and temperature of the compound nucleus indicate that the t...

Fission fragment mass and angular distributions were measured from the 64 Ni+ 197 Au reaction at 418 MeV and 383 MeV incident energy. A detailed data analysis was performed, using the one-body dissipation theory implemented in the code HICOL. The effect of the window and the wall friction on the experimental observables was investigated. Friction stronger than one-body was also considered. The ...

Some nearly-symmetric fusion reactions are systematically investigated with the improved quantum molecular dynamics (ImQMD) model. By introducing two-body inelastic scattering in the Fermi constraint procedure, the stability of an individual nucleus and the description of fusion cross sections at energies near the Coulomb barrier can be further improved. Simultaneously, the quasi-fission proces...

Nuclear shell model calculations predict the existence of super-heavy elements (SHE) that are tentatively synthesized through heavy-ion collisions. A complete description of the reaction to synthesize super-heavy elements is necessary to bridge these predictions with the experimental results on the fission time and residue cross sections. In this contribution, we will present the constraints th...

In the first half of the 20 century nuclear fusion and fission were both seen as processes that could potentially be harnessed as a powerful energy source. Research into fusion began in the 1920’s, but it was too technically challenging to make a working fusion reactor. Fission developed much more successfully during the Second World War, when North America’s Manhattan Project attempted to use ...

Neutron-rich Sr and Zr nuclei were populated as fission fragments produced by the Usa , fd fusion-fission reaction. The yrast states of these nuclei have been extended up to <20", which is about 6" on average beyond the previously known spin, by studying the prompt g rays in coincidence with the detection of both fission fragments. This extension allows the observation of yrast states with spin...

Mitochondrial fission facilitates cytochrome c release from the intracristae space into the cytoplasm during intrinsic apoptosis, although how the mitochondrial fission factor Drp1 and its mitochondrial receptors Mff, MiD49, and MiD51 are involved in this reaction remains elusive. Here, we analyzed the functional division of these receptors with their knockout (KO) cell lines. In marked contras...

Coincidences between two heavy fragments have been measured from the fission of Ni compound nuclei formed in the S + Mg reaction at Elab( S) = 165.4 MeV. A unique experimental set-up consisting of two large-area position-sensitive (x, y) gas detector telescopes has been used allowing the complete determination of the observed fragments and their momentum vectors. In addition to binary fission e...

Coordination between sequential steps in synaptic vesicle endocytosis, including clathrin coat formation, fission, and uncoating, appears to involve proteinprotein interactions. Here, we show that compounds that disrupt interactions of the SH3 domain of endophilin with dynamin and synaptojanin impair synaptic vesicle endocytosis in a living synapse. Two distinct endocytic intermediates accumula...

The yields and velocity distributions of heavy residues and fission fragments from the reaction of 20 MeV/nucleon 197 Au + 90 Zr have been measured using the MSU A1200 fragment separator. A bimodal distribution of residues is observed, with one group, resulting from peripheral collisions, having fragment mass numbers A=160– 200 while the other group, resulting from " hard " collisions, has A=12...