2005/02/24 by Abdulla Rakhimov, Rakhimov, Abdulla
Physics and Astronomy · #FOS: Physical sciences #High-Energy Particle Collisions Research #Nuclear Theory (nucl-th) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #nucl-th
paper · pdf · doi:10.48550/arxiv.nucl-th/0502078
Thesis of the doctoral dissertation - second degree
arxiv created 2005/02/24 · openalex publication_date 2005/02/24 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The problem under consideration in this thesis has, actually, two aspects. The first one concerns the case when a nucleon is in free space that is in vacuum, while the second one studies a nucleon embedded into a nuclear environment. Both of these two aspects have been considered in the framework of chiral topological models of QCD. The whole content of the thesis may be divided into two main parts. In the first part the original Skyrme model with finite pion mass has been extended by inclusion of the light scalar - isoscalar sigma - meson. The Lagrangian has been further extended by explicit inclusion of sigma, rho and omega - mesons as well. In order to get a more complete picture of NN potential the appropriate meson - nucleon vertex form - factors are obtained. The second part of the thesis considers a nucleon immersed into a nuclear medium. For this purpose a medium modified Skyrme Lagrangian has been proposed. The Lagrangian describes well such well known medium effects as decreasing of nucleon mass and increasing of its size (swelling). We studied also a system with finite temperature also. The temperature effects are taken into account by using the method of termofield dynamics (TFD). The corresponding critical temperatures for each meson - nucleon system are calculated .