DE ROUBIN, A.; ATANASOV, D.; BLAUM, K.; GEORGE, S.; HERFURTH, F.; KISLER, D.; KOWALSKA, M.; KREIM, S.; LUNNEY, D.; MANEA, V.; MINAYA RAMIREZ, E.; MOUGEOT, M.; NEIDHERR, D.; ROSENBUSCH, M.; SCHWEIKHARD, L.; WELKER, A.; WIENHOLTZ, F.; WOLF, R.N.; ZUBER, K.

doi:10.1103/PhysRevC.96.014310

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DE ROUBIN, A.
Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]

ATANASOV, D.

BLAUM, K.

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Phys.Rev.C. 2017, vol. 96, n° 1, p. 014310

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An extension of the atomic mass surface in the region A≈100 was performed via measurements of the $^{100−102}$Sr and $^{100−102}$Rb masses with the ion-trap spectrometer ISOLTRAP at CERN-ISOLDE, including the first direct mass determination of $^{100−102}$Sr and $^{100−102}$Rb. These measurements confirm the continuation of the region of deformation with the increase of neutron number, at least as far as $N=65$. To interpret the deformation in the strontium isotopic chain and to determine whether an onset of deformation is present in heavier krypton isotopes, a comparison is made between the experimental values and mean-field and beyond mean-field results available in the literature. To complete this comparison Hartree-Fock-Bogoliubov calculations for even and odd isotopes were performed, illustrating the competition of nuclear shapes in the region.< Réduire

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Nuclear deformation in the A≈100 region: Comparison between new masses and mean-field predictions

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