Study of the structure of yrast bands of neutron-rich 114-124Pd isotopes

Chaudhary, Rubina; Devi, Rani; Khosa, S. K.

doi:10.1140/epjp/i2018-11902-7

Cited by 3 publications

(4 citation statements)

References 60 publications

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“…From the lifetimes measured, B(E 2) transition strengths and quadrupole moments Q 0 were calculated, along with their associated deformation parameters |β 2 |. None of the theoretical calculations performed using the IBM [37][38][39], PSM [14], and collective model calculations [20] are within 1σ of the measured B(E 2; 4 + 1 → 2 + 1 ) value, but the closest is the one obtained from the Killingbeck potential, probably because of the inclusion of a triaxial minimum. The lower limit obtained for the B(E 2; 6 + 1 → 4 + 1 ) value is in agreement with all the calculations.…”

Section: Discussionmentioning

confidence: 99%

“…Studies have indicated the vibrational behavior of 106,108 Pd isotopes [10], which approaches that of a γ -soft rotor for A 110 [8]. Spectroscopic investigations of higher mass [116][117][118][119][120] Pd isotopes [11][12][13] suggest that, as the neutron number increases, the behavior of Pd isotopes moves back to that of an anharmonic vibrator showing a loss of collectivity [14].…”

Section: Introductionmentioning

confidence: 99%

“…the comparison between measured B(E 2) values (black dots) and theoretical values from the projected shell model (PSM)[14] (squares) and using the Bohr Hamiltonian coupled with the Killingbeck potential[20] (triangles, Theoretical values of the reduced transition probabilities for the 2 + 1 → 0 + g.s. , 4 + 1 → 2 + 1 , and 6 + 1 → 4 + 1 transitions in 114 Pd, obtained from PSM (squares)[14], Killingbeck potential (triangles, down)[20], standard IBM-1 (triangles, up), and triaxial IBM-1 (crosses)[37], compared with experimental values (black dots).…”

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confidence: 99%

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Fast-timing measurements in the ground-state band of Pd114

Gamba¹,

Bruce²,

Lalkovski³

et al. 2019

Phys. Rev. C

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Using a hybrid Gammasphere array coupled to 25 LaBr 3 (Ce) detectors, the lifetimes of the first three levels of the yrast band in 114 Pd, populated via 252 Cf decay, have been measured. The measured lifetimes are τ 2 + = 103(10) ps, τ 4 + = 22(13) ps, and τ 6 + 10 ps for the 2 + 1 , 4 + 1 , and 6 + 1 levels, respectively. Palladium-114 was predicted to be the most deformed isotope of its isotopic chain, and spectroscopic studies have suggested it might also be a candidate nucleus for low-spin stable triaxiality. From the lifetimes measured in this work, reduced transition probabilities B(E 2; J → J − 2) are calculated and compared with interacting boson model, projected shell model, and collective model calculations from the literature. The experimental ratio R B(E 2) = B(E 2; 4 + 1 → 2 + 1)/B(E 2; 2 + 1 → 0 + 1) = 0.80(42) is measured for the first time in 114 Pd and compared with the known values R B(E 2) in the palladium isotopic chain: the systematics suggest that, for N = 68, a transition from γ-unstable to a more rigid γ-deformed nuclear shape occurs.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Fast-timing measurements in the ground-state band of Pd114

Gamba¹,

Bruce²,

Lalkovski³

et al. 2019

Phys. Rev. C

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“…Several models have been used to investigate the properties of the neutron-rich nuclei, including the Hartree-Fock-Bogoliubov (HFB) [19,24] method, projec-ted shell model [19,25,26], and the cranked shell model [3,5,6,9,14]. However, most models focus on the ground-state bands.…”

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confidence: 99%

rotational bands in neutron-rich Mo, Ru, and Pd nuclei *

2019

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The collective rotations of the configuration in neutron-rich Mo, Ru and Pd isotopes were systematically investigated by the configuration-constrained cranking shell model based on the Skyrme Hartree-Fock method with pairing treated by shell-model diagonalization. The calculations efficiently reproduce the experimental moments of inertia of both the ground-state and side bands. Rotational bands built on two-particle configurations have been the subject of intense study. Possible configurations were assigned to the observed bands in 102-106Mo, 108-112Ru and 112-114Pd. We predict the existence of the bands in 108,110Mo. These results provide deep insights into the structure of neutron-rich nuclei, and provide useful information for future experiments.

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Microscopic description of even–even medium-mass tellurium isotopes within the projected shell model

Sharma

Devi

Khosa

2022

Int. J. Mod. Phys. E

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The low-lying energy levels, [Formula: see text] transition probabilities and [Formula: see text]-factors of even–even medium-mass tellurium isotopes have been studied by employing the projected shell model (PSM) approach. The oblate ground state deformations are taken in this study that were predicted in previous relativistic Hartree Bogoliubov mean field study. The low-lying yrast and yrare states are reproduced well in these calculations. The energy and configuration of yre states are also predicted. The experimental [Formula: see text] values and their systematics with neutron number are reproduced well in the medium-mass Te isotopes. The experimental data are available for [Formula: see text]-factors of 2[Formula: see text] states of [Formula: see text]Te isotopes which is in line with these calculations. The enhancement of [Formula: see text]-factors at spin [Formula: see text] = 6[Formula: see text] in all the Te isotopes considered may be attributable to the alignment of protons in [Formula: see text] subshell. Furthermore, the reduction of [Formula: see text]-factors at spin [Formula: see text] in [Formula: see text]Te and [Formula: see text] in [Formula: see text]Te may be attributable to the alignment of neutrons in the [Formula: see text] subshell. The 8[Formula: see text] states of [Formula: see text]Te are envisaged to be of [Formula: see text] nature and in [Formula: see text]Te these states are found to be of [Formula: see text] nature.

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Study of the structure of yrast bands of neutron-rich 114-124Pd isotopes

Cited by 3 publications

References 60 publications

Fast-timing measurements in the ground-state band of Pd114

Fast-timing measurements in the ground-state band of Pd114

rotational bands in neutron-rich Mo, Ru, and Pd nuclei *

Microscopic description of even–even medium-mass tellurium isotopes within the projected shell model

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