2009/01/31 by Takayuki Myo, T. Myo, H. Toki +3 · 2 citations
Physics and Astronomy · #Binding energy #Interaction model #Nuclear physics research studies #Operator (biology) #Pion #Quantum Chromodynamics and Particle Interactions #Quantum, superfluid, helium dynamics #SHELL model #Shell (structure) #Tensor (intrinsic definition) #Unitary state #nucl-th
paper · pdf · doi:10.1143/ptp.121.511
published as Prog.Theor.Phys.121:511-531,2009 · 21 pages, 5 figures
openalex publication_date 2009/03/01 · arxiv created 2009/03/04 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The pion exchange between nucleons generates a strong tensor interaction, which provides a large attractive contribution for the binding energy of nucleus. This noncentral tensor interaction is difficult to handle in the shell model framework, which hinders full understanding of nuclear structure. We develop the tensor-optimized shell model (TOSM) for the strong tensor interaction and now we are able to use bare nucleon-nucleon interaction with the help of the unitary correlation operator method (UCOM) for the short-range hard core. We adopt the nucleon-nucleon interaction, AV8′, and calculate explicitly the ground state of 4He and make a detailed comparison with rigorous few-body model calculations. We show a large amount of success of the tensor-optimized shell model with bare nucleon-nucleon interaction for 4He.