No abstract

There are two kind of bosons: holes and particles depending on the nearest closed shell or middle closed shell for neutrons or protons. In this article, the kind of bosons for even-even Xe isotopes have been changed from holes to particles for mass number 132 to 140. Energy levels and electric transitions probability calculated in IBM-1 and IBM-2 models, and potential energy surface to determine the limit of these isotopes and the deformation in them. There are a good matching between two models and experimental data.

The study is based on the Parkes Galactic All Sky Survey (GASS III) to investigate the neutral hydrogen (H I) emission in the areas surrounding the disc of the Milky Way (MW). The aim of the study is to looking for a sign of disk-halo interaction by tracing the kinematics of the H I in different heights from the midplane of the MW, as a spiral galaxy. The analysis focused on the 21 cm spectral line to examine the shape of the emission line and determine the Gaussian parameters according to the number of fitting functions. Twelve positions were investigated by chosen two slices with longitude (l = 20̊, 340̊) and different latitude (b = 10̊, 12̊, 14̊, 16̊, 18̊, 20̊) for each slice. In some positions the line profiles show broadening or even line splitting as a result to interaction between different component with different kinematics and physical environments. Our results also indicate that the velocity reduces with increase the height from the midplane and take this as evidence of lags as a result to the interaction between the disk and halo.

In this research, some properties of the element 194Po and 190Hg was studied by applying the interacting bosons model-1. By obtaining the energy levels of this elements and comparing them with the practical values, which give an idea of the element’s belonging to a particular determination, where this elements belongs to U(5) and O(6) through the ratio between the energy of the excited plane The fourth to the second agitated level 𝐸4+𝐸2+ , as well as other ratios, as well as through the arrangement of practical levels. In addition the probability of electrical transitions B(E2) was studied through (IBMT) and its agreement with the practical probability. Finally, the surface potential of the nucleus was studied through the (IBMP) program, which gives an idea of the deformation occurring in the nucleus from the deviation of the contour lines and their collection in a specific area.