Investigate the scalar section, the gauge section, and currents in the 3 − 2 − 3 − 1 model and the minimal 3 − 4 − 1 model with right-handed neutrino. Identifying particles and interactions of SM as well as predicting new particles and interactions. | MINISTRY OF EDUCATION AND VIETNAM ACADEMY TRAINING OF SCIENCE AND TECHNOLOGY GRADUATE UNIVERSITY SCIENCE AND TECHNOLOGY ----------------- DUONG VAN LOI SOME NEW PHYSICS EFFECTS IN THE 3 2 3 1 AND 3 4 1 MODELS Major Theoretical and Mathematical Physics Code 62 44 01 03 SUMMARY OF PHYSICS DOCTORAL THESIS HANOI - 2018 The work has been completed at Graduate University of Science and Technology Vietnam Academy of Science and Technology Scientific Supervisor . Hoang Ngoc Long - Institute of Physics Graduate University of Science and Technology Referee 1 . Dang Van Soa - Hanoi Metropolitan University Referee 2 . Phan Hong Lien - Military Technical Academy Referee 3 Dr. Nguyen Huy Thao - Hanoi Pedagogical University 2 This dissertation will be defended in front of the evaluating assembly at academy level Place of defending meeting room Graduate University Science and Technology Vietnam Academy of Science and Technology. The thesis can be found at - National Library - Institute of Physics Library. INTRODUCTION 1. Motivation of thesis topic The Standard Model SM is a very good theory for describing three basic types of interactions and this has been empirically tested. However SM has yet to explain some issues such as the generation number equal to three the small mass of the neutrino the existence of dark matter. At the same time some results in SM related to the ρ-parameter the neutral meson mass differences the total decay width of the W boson . do not coincide with the experiment although the difference is very small. Many other characteristics also indicate that SM is an effective theory of a more fundamental theory. Therefore the development of extended theories to solve existing problems is very natural and necessary. In SM extensions expanding the gauge symmetry group of the electroweak part is very much in the interest of many scientists. Accordingly the model based on the SU 3 C SU 2 L SU 3 R U 1 X 3 2 3 1 gauge group has just been .
