Quantum-state-selective decay spectroscopy of ²¹³Ra

Summary, in English

An experimental scheme combining the mass resolving power of a Penning trap with contemporary decay spectroscopy has been established at GSI Darmstadt. The Universal Linear Accelerator (UNILAC) at GSI Darmstadt provided a ⁴⁸Ca beam impinging on a thin ¹⁷⁰Er target foil. Subsequent to velocity filtering of reaction products in the Separator for Heavy Ion reaction Products (SHIP), the nuclear ground state of the 5n evaporation channel ²¹³Ra was mass-selected in SHIPTRAP, and the ²¹³Ra ions were finally transferred into an array of silicon strip detectors surrounded by large composite germanium detectors. Based on comprehensive Geant4 simulations and supported by theoretical calculations, the spectroscopic results call for a revision of the decay path of ²¹³Ra, thereby exemplifying the potential of a combination of a mass-selective Penning trap device with a dedicated nuclear decay station and contemporary Geant4 simulations.

• Author: Ch Lorenz; L. G. Sarmiento; D. Rudolph; D. E. Ward; M Block; F. P. Heßberger; D. Ackermann; L. L. Andersson; Manuel Lazo Cortés; C. Droese; M. Dworschak; M. Eibach; U. Forsberg; P. Golubev; R. Hoischen; I Kojouharov; J. Khuyagbaatar; D. Nesterenko; I. Ragnarsson; H Schaffner; L. Schweikhard; S. Stolze; J. Wenzl
• Department/s: Nuclear physics; Mathematical Physics
• Publishing year: 2017-09-18
• Language: English
• Publication/Series: Physical Review C
• Volume: 96
• Issue: 3
• Full text: - 716 kB; Download statistics
• Links: http://dx.doi.org/10.1103/PhysRevC.96.034315
• Document type: Journal article
• Publisher: American Physical Society
• Topic: Subatomic Physics
• Keywords: alpha decay; gamma-ray spectroscopy; Penning trap; nuclear shell model; Nilsson-Strutinsky calculations
• Status: Published
• Project: Quantum-state Selective Nuclear Decay Spectroscopy; Characterization of New Superheavy Elements
• ISBN/ISSN/Other: ISSN: 2469-9985