1–4 Sept 2024
CERN
Europe/Zurich timezone

Multiconfigurational energy spectra and transition rates of significant levels in Lr I (Z=103)

2 Sept 2024, 16:35
30m
503/1-001 - Council Chamber (CERN)

503/1-001 - Council Chamber

CERN

See timetable for exact location. Registration will be at the CERN Gateway just as the Public Lecture on Tuesday 3 September Lectures will be at the Council Chamber ( 503/1-001) on Monday 2nd & Wednesday 4th September Lectures will be in the Curie Room (40/S2-C01 ) on Tuesday 3rd (Morning)
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Speaker

Joseph Andrews (Friedrich Schiller University Jena)

Description

The study of the actinides represents a frontier in contemporary nuclear and atomic physics research. Lawrencium (Lr), with an atomic number of 103, is the heaviest and final actinide in the periodic table, positioned just before the super-heavy elements. Despite its significance, experimental data for lawrencium remain scarce. Precise and accurate theoretical calculations are essential for determining its energy levels.

Calculations were initially performed on lutetium (Lu), the lighter homologue of lawrencium, for which experimental data are available. This step is crucial to validate the predictive accuracy of our computational models for calculating the energy spectrum and transition properties of lawrencium.

The energy spectra of Lawrencium and Lutetium are investigated using the multiconfigurational Dirac-Hartree-Fock (MCDHF) method. Results of both the neutral atoms are presented and compared to previous calculations and experiment where available.

In this presentation, we report large-scale precision calculations of the energy structure of neutral lawrencium. Our results provide significantly more precise values than previous MCHF calculations for the energy levels of the levels and their corresponding transition rates.

Presentation materials