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7 papers · 1 filter
Higgs and Nambu-Goldstone modes in condensed matter physics
Naoto Tsuji, Ippei Danshita, Shunji Tsuchiya
Collective dynamics of many particle systems is tightly linked to their underlying symmetry and phase transitions. Higgs and Nambu-Goldstone modes are, respectively, collective amp…
Modes of massive nucleon transfer appearing in quasifission processes for collisions of superheavy nuclei
S. Amano, Y. Aritomo, M. Ohta
It is challenging to distinguish between fusion-fission and quasifission experimentally. To determine the characteristics of quasifission processes associated with dominant phenome…
Modeling of nuclear reactions with Langevin calculations
S. Amano, Y. Aritomo, Y. Miyamoto +2
The mass angle distribution shows a strong correlation between mass and angle when quasifission events are dominant. Therefore, as long as quasifission events are dominant, the mas…
Dynamical mechanism of fusion hindrance in heavy ion collisions
S. Amano, Y. Aritomo, M. Ohta
In the fusion process, the investigation of the reaction dynamics in the time evolution of the nuclear configuration is necessary. The neck parameter which is one of the parame…
Nuclear viscosity estimated by dynamics of neck formation in the early stage of nuclear collision
S. Amano, Y. Aritomo, M. Ohta
The very early stage of the coalescence of two nuclei is studied and used to estimate the nuclear viscosity. The time evolution of the neck region has been simulated by the unified…
Fusion cross section and total kinetic energy of fission fragments by the dynamical dissipative surface-friction model
S. Amano, Y. Aritomo, M. Ohta
The capture cross section, the fusion cross section, and the quasi-fission yield producing symmetric fragments () in the Ca+U reaction are analyzed b…