Tag: Isotope
Neutron-capture uncertainties limit r-process residuals
What the study found Some r-process, or rapid neutron-capture, isotope residuals in the solar system remain significantly uncertain because uncertainties in s-process, or slow neutron-capture, abundances propagate into them. Why the authors say this matters The authors say this is important because r-process residuals are used as a benchmark in stellar models of explosive nucleosynthesis,…
Cyclotron rotation and ion waves drive nickel isotope enrichment
What the study found The study found that a self-consistent model can explain the unusually large enrichment of nickel isotopes seen in ablation plumes from ultrafast laser irradiation of solid surfaces. The model centers on a spontaneous magnetic centrifuge in the plasma, with cyclotron rotation of ions and ion Bernstein waves (IBWs, broad-spectrum plasma waves)…
Calcium isotope selectivity was increased with polarized resonance ionization
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Selective resonance ionization technique using angular momentum selection rules and polarized light enables isolation of rare calcium isotopes Ca-43 and Ca-41 while suppressing abundant Ca-40.
First ab initio nuclear Schiff moment calculated for 19F
First ab initio nuclear calculation of fluorine-19 Schiff moment reveals new constraints on fundamental symmetry violations through precision molecular spectroscopy measurements.
