Examination of evidence for collinear cluster tri-partition

In a series of the experiments at different time-of-flight spectrometers of heavy ions we have observed manifestations of a new at least ternary decay channel of low excited heavy nuclei. Due to specific features of the effect, it was called collinear cluster tri-partition (CCT). The experimental results obtained initiated a number of theoretical articles dedicated to different aspects of the CCT. We compare theoretical predictions with our experimental data, only partially published so far. The model of one of the most populated CCT modes that gives rise to the so called "Ni-bump" is discussed. Detection of the 68-72Ni fission fragments with a kinetic energy E<25 MeV at the mass-separator Lohengrin is proposed for an independent experimental verification of the CCT.Comment: 16 pages, 14 figure

Simulation of Spin Systems with Competing Interactions by the Classical Monte Carlo

We performed multicanonical replica-exchange Monte-Carlo simulations for frustrated 2D Ising model with competing interactions.Работа была выполнена при поддержке программы повышения конкурентоспособности Уральского Федерального университета (Акт 211 Правительства РФ, соглашение № 02.A03.21.0006) и Министерства образования и науки РФ, проект FEUZ-2020-0054