Nuclear Data Sheets for A = 213

Basunia, M. S.

doi:10.1016/j.nds.2007.02.002

Cited by 53 publications

(38 citation statements)

References 107 publications

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“…It should be noted that these isotopes belong to the region of neutron-rich short-lived nuclei and the precise determination of their spectra of excited states is a complex experimental task. Low-lying excitations J P = 13/2 − , 17/2 − , 21/2 − are defined with good reliability and interpreted as the (1h 9/2 ) 5π configuration in 213 Fr [17] and the (1h 9/2 ) −3π configuration in 215 Ac [18]. Our calculations show the authenticity of this interpretation.…”

Section: Resultssupporting

confidence: 71%

Pairing and (9/2)ⁿ configuration in nuclei in the ²⁰⁸Pb region

et al. 2018

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Abstract. Excited states in low-energy spectra in nuclei near 208 Pb are considered. The pure ( j = 9/2) n configuration approximation with delta-force is used for ground state multiplet calculations. The multiplet splitting is determined by the pairing energy, which can be defined from the even-odd straggering of the nuclear masses. For the configurations with more than two valence nucleons, the seniority scheme is used. The results of the calculations agree with the experimental data for both stable and exotic nuclei within 0.06-6.16%. Due to simplicity and absence of the fitted parameters, the model can be easily applied for studies of nature of the excited states in a wide range of nuclei.

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Section: Resultssupporting

confidence: 71%

Pairing and (9/2)ⁿ configuration in nuclei in the ²⁰⁸Pb region

et al. 2018

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“…In fact, both the proposed α-β + /EC branching ratio as well as the leading α-decay branching ratios into the ground, first excited, and second excited states of 209 Rn remained unchanged since then [12,13]. The situation is similar for the main decay characteristics of 2469-9985/2017/96(3)/034315 (12) 034315-1 ©2017 American Physical Society [18]. While confirming these early results, still based on He-jet techniques, Raich et al [19] performed the first α-γ coincidence study of 213 Ra, thereby also establishing a 2.15 ms, 17/2 − isomeric state at 1770 keV.…”

Section: Introductionmentioning

confidence: 80%

Quantum-state-selective decay spectroscopy of Ra213

et al. 2017

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General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from the public portal for the purpose of private study or research.• You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal 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 48 Ca beam impinging on a thin 170 Er 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 213 Ra was mass-selected in SHIPTRAP, and the 213 Ra 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 213 Ra, thereby exemplifying the potential of a combination of a mass-selective Penning trap device with a dedicated nuclear decay station and contemporary GEANT4 simulations.

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“…The experimental data seem fitted reasonably well by the model with two effective parameters x and c . Table III and compared with the corresponding experimental data [25][26][27][28][29][30][31], where the spin and parity in the parentheses indicate they are not confirmed experimentally. Table III and compared with the corresponding experimental data (Exp.…”

Section: Applicationsmentioning

confidence: 99%

Quantum phase transition in the spherical mean-field plus quadrupole-quadrupole and pairing model in a single-jshell

Pan

Draayer

2016

Phys. Rev. C

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The quantum phase transitional behavior of the spherical shell model mean-field plus the geometric quadrupole-quadrupole and standard pairing model within a single-j shell is analyzed in detail. Various quantities, such as low-lying energy levels, some typical energy ratios, the overlaps of the excited states with those of the corresponding limiting cases, B(E2) values and electric quadrupole moments of some low-lying states and their ratios, as functions of the control parameter of the model in a j = 15/2 shell are calculated as an example, in which only a crossover occurs due to the Pauli exclusion. The results show that there are noticeable changes within the crossover region of the rotation-like to the pair-excitation (superconducting) phase transition, especially in the half-filling case. As application to realistic nuclear systems, a chain of isotones 212 Rn-213 Fr-214 Ra-215 Ac is chosen to be described by the model with valence protons in the 1h 9/2 shell. As far as the lowlying energy levels, the experimentally observed B(E2) values, and the electric quadrupole moment within the yrast band are concerned, these nuclei seem fitted reasonably well. The results indicate that these nuclei are all within the rotation-like to the pair-excitation phase transition near to the crossover point.

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Nuclear Data Sheets for A = 213

Cited by 53 publications

References 107 publications

Pairing and (9/2)ⁿ configuration in nuclei in the ²⁰⁸Pb region

Pairing and (9/2)ⁿ configuration in nuclei in the ²⁰⁸Pb region

Quantum-state-selective decay spectroscopy of Ra213

Quantum phase transition in the spherical mean-field plus quadrupole-quadrupole and pairing model in a single-jshell

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Nuclear Data Sheets for A = 213

Cited by 53 publications

References 107 publications

Pairing and (9/2)n configuration in nuclei in the 208Pb region

Pairing and (9/2)n configuration in nuclei in the 208Pb region

Quantum-state-selective decay spectroscopy of Ra213

Quantum phase transition in the spherical mean-field plus quadrupole-quadrupole and pairing model in a single-jshell

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Product

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Pairing and (9/2)ⁿ configuration in nuclei in the ²⁰⁸Pb region

Pairing and (9/2)ⁿ configuration in nuclei in the ²⁰⁸Pb region