An investigation of the elastic scattering of 17O projectiles by different target nuclei using the CDCC method

The Continuum Discretized Coupled Channels (CDCC) method is a convenient method that was developed in order to examine weakly bound nuclei. For this purpose, the elastic scattering data of 17 O projectile for 90 Zr, 124 Sn and 208 P b target nuclei were investigated at 340 MeV using the CDCC method. In calculations using this method, 17 O projectiles were taken to be .Optical potentials were selected as the interaction potentials. It was seen that the results obtained were compatible with the experimental data. The effects of excited channels in all three systems were also determined.

Lattice ground states for embedded-atom models in 2D and 3D

The Embedded-Atom Model (EAM) provides a phenomenological description of atomic arrangements in metallic systems. It consists of a configurational energy depending on atomic positions and featuring the interplay of two-body atomic interactions and nonlocal effects due to the corresponding electronic clouds. The purpose of this paper is to mathematically investigate the minimization of the EAM energy among lattices in two and three dimensions. We present a suite of analytical and numerical results under different reference choices for the underlying interaction potentials. In particular, Gaussian, inverse-power, and Lennard-Jones-type interactions are addressed.

Formation of Kinetics Coherent Structures in Weakly Collisional Media

The formation of nonlinear, nonstationary structures in weakly collisional media with collective interactions are investigated analytically within the framework of the kinetic description. This issue is considered in one-dimensional geometry using collision integral in the Bhatnagar-Gross-Krook form and some model forms of the interparticle interaction potentials that ensure the finiteness of the energy and momentum of the systems under consideration. As such potentials, we select the Yukawa potential, the δ-potential, which describes coherent structures in a plasma. For such potentials we obtained a dispersion relation which makes it possible to estimate the size and type of the forming structures.

PECULIARITIES OF CHANNELING AND GENERATED RADIATION OF RELATIVISTIC ELECTRONS IN THE MAIN CHARGED AXES OF LITHIUM HYDRIDE CRYSTAL

The paper deals with the calculation of electron interaction potentials with the main charged [110] axes in a lithium hydride crystal at T = 300, 600, and 900 K temperatures. For relativistic electrons with Lorentz factors γ = 50, 75, 100 the energy and corresponding wave functions of transverse levels of channeling motion are found numerically. The radiation spectra of channeling electrons with (and without) accounting an angular dispersion are calculated on the basis of these data.