The neutron-rich barium isotopes

Scott, S M; Hamilton, W D; Hungerford, P.; Warner, D.D.; Jung, G.; Wünsch, K. D.; Pfeiffer, B.

doi:10.1088/0305-4616/6/10/016

Cited by 52 publications

(27 citation statements)

References 19 publications

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“…The /~-feedings are in agreement with spin 1; this value has been determined experimentally by Thibault et al [19] for the lighter isotope 144Cs. From the /~-endpoints given in Table 1, a consistent Qp-value of 9,290+75keV is derived for 146Cs, The partial decay scheme of 146Cs is taken from [17,18] which is in very good agreement with our earlier result, cf. Table 2.…”

Section: ~~supporting

confidence: 77%

“…The level scheme of a46Ba has been studied by Scott et al [17] and by Monnand et al [18]. These authors proposed a level scheme with 16 excited levels between 181 keV and 2,344 keV, which is well supported by the present /?7-coincidence measurements, where 7 /?-branches from the decay of I46Cs have been observed.…”

Section: ~~supporting

confidence: 61%

“…One of the /~-spectra measured in this decay is shown in Fig. 1, together with a partial decay scheme of 146Cs taken from [17,18]. The feedings of the 1,657keV level in 146Ba, which is depopulated by a 1,657 keV v-transition, and of the 1,638 keV level depopulated by a 1,457 keV 7-line, are very weak.…”

Section: ~~mentioning

confidence: 99%

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Beta-decay energies of neutron-rich nuclei in the mass region 142?A?150

Graefenstedt

Keyser

Münnich

et al. 1986

Z. Physik A - Atomic Nuclei

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The fi-endpoint energies of 6 neutron-rich nuclei with mass numbers A=146 and A--147 have been measured with a plastic scintillator telescope at the on-line mass separator OSTIS. With the Q,-values derived from these experiments and with those obtained in earlier studies, nuclear structure effects in this part of the nuclear chart are investigated. In addition, nuclear masses derived from the experimental Q~-values are compared with the predictions of theoretical mass calculations.

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Section: ~~supporting

confidence: 77%

Section: ~~supporting

confidence: 61%

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Beta-decay energies of neutron-rich nuclei in the mass region 142?A?150

Graefenstedt

Keyser

Münnich

et al. 1986

Z. Physik A - Atomic Nuclei

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“…Upper limits for relative intensities of unobserved γ transitions have been discussed above. The yrast levels lying below 1-MeV excitation have been reported in angular-correlation measurements [27]. The non-yrast states above 1 MeV typically decay via low-multiplicity cascades through the 2 + 1 level.…”

Section: γ-Ray Intensitiesmentioning

confidence: 93%

γ-softBa146and the role of nonaxial shapes atN≈90

Mitchell¹,

Lister²,

McCutchan³

et al. 2016

Phys. Rev. C

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Low-spin states in the neutron-rich, N = 90 nuclide 146 Ba were populated following β-decay of 146 Cs, with the goal of clarifying the development of deformation in Ba isotopes through delineation of their non-yrast structures. Fission fragments of 146 Cs were extracted from a 1.7-Ci 252 Cf source and mass-selected using the CARIBU facility. Low-energy ions were deposited at the center of a box of thin β detectors, surrounded by a high-efficiency HPGe array. The new 146 Ba decay scheme now contains 31 excited levels extending up to ∼2.5 MeV excitation energy, double what was previously known. These data are compared to predictions from the Interacting Boson Approximation (IBA) model. It appears that the abrupt shape change found at N = 90 in Sm and Gd is much more gradual in Ba and Ce, due to an enhanced role of the γ degree of freedom.

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“…These levels [15]. All these new experiments and theoretical calculations have provided new insights for these nuclei which is helpful to understand their structures [17][18][19][20][21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Theoretical Description of energy spectra and Quadrupole transition probabilities 0f 192 Pt

TAZEKAND¹,

SABRI²,

MOHAMMADI³

et al. 2016

CSJ

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Abstract. In this paper, we have studied the energy spectra and quadrupole transition probabilities of 192Pt nucleus with emphasis on shape coexistence. A transitional Interacting Boson Model Hamiltonian which are based on affine SU(1,1) lie algebra is used to consider the coexistence of spherical and axial symmetry shapes in this nuclei. Parameter free (up to overall scale factors) predictions for theoretical predictions are found to be in good agreement with experimental counterparts. Our results offer a combination of spherical and deformed shapes for this nucleus which is expected to be an excellent example for SO(6)dynamical limit.

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The neutron-rich barium isotopes

Cited by 52 publications

References 19 publications

Beta-decay energies of neutron-rich nuclei in the mass region 142?A?150

Beta-decay energies of neutron-rich nuclei in the mass region 142?A?150

γ-softBa146and the role of nonaxial shapes atN≈90

Theoretical Description of energy spectra and Quadrupole transition probabilities 0f 192 Pt

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