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Coulomb energy differences between isobaric analogue states in 70Br and 70Se (2001)

de Angelis, G. ; Martinez, T. ; Gadea, A. ; [et al.]

Springer

The European physical journal 12 (2001), S. 51-55

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ISSN: 1434-601X

Keywords: PACS. 23.20.Lv Gamma transitions and level energies – 21.10.Sf Coulomb energies – 27.50.+e 59 ?A? 89

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract. Gamma ray transitions de-exciting states in the N = Z nucleus 70Br have been identified for the first time using the GASP and EUROBALL arrays coupled with ancillary detectors. The level scheme of 70Br has been established by means of particle-gated γ-γ and γ-γ-γ coincidences. The Coulomb energy differences between isobaric analogue states in 70Br and 70Se show a deviation from the expected behaviour which could be related to dripline effects.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/s100500170038

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High accuracy Dirac-finite-element (FEM) calculations for H 2 + and Th 2 179 + (2001)

Kullie, O. ; Kolb, D.

Springer

The European physical journal 17 (2001), S. 167-173

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ISSN: 1434-6079

Keywords: PACS. 02.70.Dh Finite-element and Galerkin methods – 03.65.Ge Solutions of wave equations: bound states – 31.15.Ar Ab initio calculations

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract: A two-dimensional, fully numerical approach to the four-component first-order Dirac-differential-equation utilizing the Finite-Element-Method (FEM) is employed for H 2 + and Th 2 179 + . Using elliptic-hyperbolic coordinates and further one-dimensional singular transformations, scaling transformations and extrapolation techniques (geometrical over iteration steps and logarithmic over grid points) we achieve for the molecules H 2 + and Th 2 179 + relative accuracies better than 10-12 for 1(1/2) g energies.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/s100530170019

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