Fine structure of proton-neutron mixed symmetry states in someN=80isotones
نویسندگان
چکیده
منابع مشابه
Microscopic Restoration of Proton-Neutron Mixed Symmetry in Weakly Collective Nuclei
Starting from the microscopic low-momentum nucleon-nucleon interaction Vlow k, we present the first systematic shell model study of magnetic moments and magnetic dipole transition strengths of the basic low-energy one-quadrupole phonon excitations in nearly-spherical nuclei. Studying in particular the even-even N = 52 isotones from Zr to Cd , we find the predicted evolution of the predominantly...
متن کاملMixed - symmetry states and the structure of 200 Hg
Mixed-symmetry assignments are made to the 1.570 (l;), 1.573 (2:) and 1.659 (3:) MeV levels in 2wHg. The characteristics of the 2: level are shared with nearby 2+ levels at 1.254 and 1.593 MeV. An interacting boson approximation (IBA-2) analysis examines the sensitivity of the mixed-symmetry states to the E , parameters of the Majorana term and finds that both the magnitude and sign of the d(E2...
متن کاملNeutron and proton structure today
The paper in this issue by Taylor reviews the experimental discovery of quarks in deep-inelastic scattering (DIS). Altarelli (1989) reviewed how quantum chromodynamics (QCD) provides the rules governing strong forces that hold quarks inside the nucleon. The remaining papers in this issue discuss the status of current issues on these important subjects. This makes me wonder what I am supposed to...
متن کاملComposition-structure of Electron, Proton & Neutron
An element is non-composite but composes other particles. The elementary quarks & leptons of the Modern Standard Model are found to be compressible and assembleable, hence having composition. These in Unified Theory are composed by two elementary cosminos, positrino & negatrino. The cosmino-sharmon composition-structures of electron, proton and neutron presented for the first time are defined b...
متن کاملGlobal features of proton-neutron interactions and symmetry energy
We study global features of proton-neutron (p-n) interactions and symmetry energy over a wide range of nuclei, using a schematic model interaction with four forces proposed recently. Calculations are performed by the BCS approximation in N,Z=20-50 and N,Z=50-82 regions. The experimental double differences of binding energies and symmetry energy are reproduced quite well. It is shown that the is...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review C
سال: 2008
ISSN: 0556-2813,1089-490X
DOI: 10.1103/physrevc.77.044310