Lifetime measurements in 
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Nd</mml:mi><mml:mprescripts /><mml:none /><mml:mn>138</mml:mn></mml:mmultiscripts></mml:math>

Garrote, F. L. Bello; Görgen, A.; Mihai, C.; Abraham, T.; Delaroche, J.-P.; Filipescu, D.; Florea, N.; Gheorghe, I.; Ghiţă, D.; Girod, M.; Glodariu, T.; Hadyńska-Klęk, K.; Klintefjord, M.; Libert, J.; Lică, R.; Marchlewski, T.; Mărginean, N.; Mărginean, R.; Mitu, I. O.; Negreţ, A.; Niță, Cristina; Nowacki, F.; Olacel, Adina; Pascu, S.; Renstrøm, T.; Şahin, E.; Siem, S.; Srebrny, J.; Stolarz, A.; Stroe, L.; Toma, S.; Tornyi, T. G.; Tucholski, A.

doi:10.1103/physrevc.97.064310

Cited by 4 publications

(1 citation statement)

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“…Table III lists the transitional quadrupole moments calculated with SLy4 L at both positive-and negative-γ values for a few configu-rations. Incidentally, a recent experiment [30] performed interesting life-time measurement on the rotational bands near ground state of 138 Nd. The current work suggests that the life-time data in the spin intervals of 30-40 are highly desirable.…”

Section: Resultsmentioning

confidence: 99%

Cranked self-consistent mean-field description of the triaxially deformed rotational bands in Nd138

Shi

2019

Phys. Rev. C

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Background Compared to the axially deformed nuclei, triaxially deformed ones are relatively scarce. This is mainly due to the difficulties in the identification of experimental signatures pertaining to the triaxial degree of freedom. In the nucleus 138 Nd, a number of rotational bands have been observed to have medium or high spin values. They have been interpretated in the macroscopic-microscopic method, to be based on triaxial minima. In particular, for a few configurations, the calculations suggested that a re-orientation of the rotational axis may have occurred along the rotational bands.Purpose The present work aims at a quantitative description of the experimentally observed bands in 138 Nd, using the cranked self-consistent Skyrme-Hartree-Fock (SHF) method or cranked nuclear density functional theory (DFT). Such a study, which is still missing, will provide alternative interpretations of the structure of the bands and hence, shed new lights on the triaxiality issue in connection with experimental data.Methods The rotational bands are described using cranked self-consistent mean-field method with SLy4 and SkM* Skyrme energy density functionals (EDFs). For SLy4 EDF, the time-odd pieces are included using Landau parameters (denoted with SLy4L). For SkM* EDF, the local gauge invariance argument has been used to determine the time-odd components of the mean-field. ResultsThe survey of different configurations near Fermi surface of 138 Nd results in 12 lowest configurations, at both positiveand negative-γ deformations. These are calculated to be the energetically lowest configurations. The results show that, for both EDFs, the rotational states based on positive-γ minimum, which is at γ ≈ 35 • , are lower than the respective configurations with negative-γ deformation. The general trends of the spin-versus-omega curve, and the energy-versusspin curve reproduce well those of the experimental data. Further, for the observed bands 'T1-T8', the calculated results using SLy4L allows the configurations of the observed bands to be assigned. The calculations predict transitional quadrupole moments, which can be used to compare with future experimental data. ConclusionsThe current cranked self-consistent mean-field calculations of the near-yrast high-spin rotational bands in 138 Nd reproduce well the experimental data. The results suggest that the experimentally observed bands can be assigned to the calculated bands with various configurations at the positive-γ deformation. The predictions of the current calculations are complementary to that of the well-know macroscopic-microscopic calculations, both of which await future experiment to verify.

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Section: Resultsmentioning

confidence: 99%