نتایج جستجو برای: neutron decay
تعداد نتایج: 117888 فیلتر نتایج به سال:
A systematic study of the total β-decay half-lives and β-delayed neutron emission probabilities is performed. The β-strength function is treated within the self-consistent density-functional + continuum-QRPA framework including the Gamow-Teller and first-forbidden transitions. The experimental total β-decay half-lives for the Ni isotopes with A ≤76 are described satisfactorily. The half-lives p...
This paper reviews the scientific literature for new measurements of both non-neutron and neutron nuclear data. Some of the highlights of this review are the following items. There was a withdrawal of a previous claim for discovery of element 118. There have been new measurements of some isotopic abundance values that have led to changes for many elements. There was a new set of recommended sta...
It was pointed out recently that the neutron oscillation into mirror neutron, a sterile state exactly degenerate in mass with the neutron, could be the most rapid process with the the baryon number violation, even faster than the neutron decay itself. This process is sensitive to the magnetic field and it could be observed by comparing the neutron lose rates in the UCN storage chambers for diff...
We propose to study the neutron-deficient (201−206Fr) and neutron-rich (218,219,229−232Fr) francium isotopes with high-resolution collinear resonance ionization spectroscopy. Extraction of the quadrupole moments will provide information on the nature of the deformation in the neutron-deficient nuclei and the octupole deformation suggested in the neutron-rich nuclei. The presence of the decay sp...
Current knowledge of the neutron β-decay lifetime has come under scrutiny as of late due to large disagreements between recent precise measurements. Measurements using magnetically trapped Ultra-Cold Neutrons (UCNs) offer the possibility of storage without spurious losses which can provide a reliable value for the neutron lifetime. The progress towards realizing a neutron lifetime measurement u...
Superheavy isotopes are highly neutron rich nuclei in the vicinity of neutron drip-line, stabilized by shell effect against the instability due to repulsive component of nuclear force, analogous to superheavy elements similarly stabilized against Coulomb instability. Here we discuss the stability and fission decay properties of such nuclei in the Th region and show that they are stable against ...
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