Nucleon density in the nuclear periphery determined with antiprotonic x rays: Calcium isotopes
نویسندگان
چکیده
X rays from the cascade of antiprotonic atoms have been studied by the PS209 Collaboration at LEAR of CERN. In this publication the strong interaction widths and shifts for calcium isotopes are presented. The isotopes Ca,Ca,Ca,Ca, and Ca have been investigated. The measured widths are compared with results from Hartree-Fock-Bogoliubov calculations. As a CaCO3 target had been used for the measurement also the lowest antiprotonic transition of O could be observed.
منابع مشابه
Investigation of strong force influence on behavior of nuclear energy levels in Calcium and Titanium isotopes: Based on quantum chaos theory
The atomic nucleus is a complex many-body system that consists of two types of fermion (neutron and proton). They are in the strong interaction. The statistical properties of energy levels and influence of strong force between these fermions are well described by random matrix theory. Resonance of energy levels depends on the Hamiltonian symmetry placed in one of the GOE, GUE and GSE ensembles ...
متن کاملRadiosensitizing effect of deferoxamine on human glioma cells
ABSTRACT Background: Tumor cells exhibit an increased requirement for iron to support their rapid proliferation. Deferoxamine (DFO), an iron chelator, has been reported to have anti-proliferative effects on cancer cells through induction of apoptosis and cell cycle arrest. X-rays also induce apoptosis and cell cycle arrest. However, limited information is available regarding the effect of iron...
متن کاملNeutron density distributions from antiprotonic 208 Pb and 209 Bi atoms
The x-ray cascade from antiprotonic atoms was studied for 208Pb and 209Bi. Widths and shifts of the levels due to the strong interaction were determined. Using modern antiproton-nucleus optical potentials, the neutron densities in the nuclear periphery were deduced. Assuming two-parameter Fermi distributions (2pF) describing the proton and neutron densities, the neutron rms radii were deduced f...
متن کاملComparison of Absorbed Fraction of Gamma and Beta Rays of I-124 and I-131radio-Isotopes in Thyroid Gland with Monte Carlo Simulation
I131 is a famous radio-iodine isotope in use for diagnosis and treatment of hyper functioning and cancerous thyroid gland. It is a nuclear reactor product; however nuclear reactor may be unavailable in some areas. Replacement by I-124 may be possible, another iodine isotope producible by cyclotron; a system more available than reactor. Here absorbed fraction of Gamma and Beta rays of...
متن کاملComparison of Absorbed Fraction of Gamma and Beta Rays of I-124 and I-131radio-Isotopes in Thyroid Gland with Monte Carlo Simulation
I131 is a famous radio-iodine isotope in use for diagnosis and treatment of hyper functioning and cancerous thyroid gland. It is a nuclear reactor product; however nuclear reactor may be unavailable in some areas. Replacement by I-124 may be possible, another iodine isotope producible by cyclotron; a system more available than reactor. Here absorbed fraction of Gamma and Beta rays of...
متن کامل