Study of band structures and crossings in179Re

Venkova, Ts.; Morek, T.; Lieder, R.M.; Gast, W.; Hebbinghaus, G.; Krämer–Flecken, A.; Urban, W.; Sletten, G.; Maier, K. H.

doi:10.1007/bf01294744

Z. Physik A - Atomic Nuclei

1989

DOI: 10.1007/bf01294744

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Study of band structures and crossings in179Re

Ts. Venkova

T. Morek

R.M. Lieder

et al.

Abstract: bands. This allowed to determine the excitation energy of the 9/2-member of the latter band. The band crossing features of the bands have been explained as the rotation alignment of an il 3/2 quasineutron pair taking into account shape changes.

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Cited by 3 publications

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Particle-number conserving analysis of the high- K multi-quasiparticle bands in ¹⁷⁹ Re

Zhang¹,

Hong-Qiao²,

Sun³

2010

Chinese Phys. C

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The experimentally observed ten rotational bands in 179Re are analyzed with the particle-number conserving method for treating the cranked shell model with pairing interaction, in which the blocking effects are taken into account exactly. The experimental moments of inertia of these bands are reproduced quite well by our calculations with no free parameter and the deformation driving effects are discussed. The bandhead energies and the variation in the occupation probability of each cranked orbital are also analyzed.

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Particle-number conserving analysis of the high- K multi-quasiparticle bands in ¹⁷⁹ Re

Zhang¹,

Hong-Qiao²,

Sun³

2010

Chinese Phys. C

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Deformation studies at high spins inγ-softRe179nucleus

et al. 2004

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The nuclear shape studies are done for different quasiproton bands in 179 Re nucleus through lifetime measurement using recoil distance Doppler shift technique. The deformation driving property of the low K, h 9/2 ͓541͔1/2 − intruder band and the stretching property of the high K, d 5/2 ͓402͔5/2 + and h 11/2 ͓514͔9/2 − bands are discussed. The average quadrupole moment obtained from these measurements for the h 9/2 configuration ͑Q t ϳ 6.5 e b͒ is found to be about 16% higher than the average quadrupole moment ͑Q t ϳ 5.6 e b͒ for the d 5/2 and the h 11/2 configurations. The higher value of quadrupole moment for the low K =1/2, h 9/2 band as compared to the high K =9/2, h 11/2 , and K =5/2, d 5/2 bands indicates its deformation driving property. The cranked Hartree-Fock-Bogoliubov and the microscopic Hartree-Fock calculations are done for these bands and are compared with the experimental observations.

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High-Kstates in the odd-odd nuclideRe180

et al. 2005

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The structure of the deformed, doubly odd nuclide 180 Re has been studied by γ -ray and conversion-electron spectroscopy using the 174 Yb( 11 B,5n) reaction with a pulsed 71 MeV beam of 11 B ions. Several of the previously known intrinsic states have been given revised spin and parity assignments. Rotational bands are observed with K π = (4 + ), (5 − ), (7 + ), 8 + , 9 − , 13 + , 14 − , 15 − , 16 + , 21 − , and (22 + ). Among these, a four-quasiparticle t band is identified, which is already energetically favored at its bandhead compared to the corresponding two-quasiparticle band; and two six-quasiparticle bands are identified and associated with a τ = 13 µs isomer. The observed structures, including g factors and alignments, are interpreted with the aid of Nilsson-plus-BCS calculations and configuration-constrained potential energy surface calculations. Reduced-hindrance values are obtained for K-forbidden transitions, illustrating the important role of the K quantum number for near-yrast isomers.

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Study of band structures and crossings in179Re

Abstract: bands. This allowed to determine the excitation energy of the 9/2-member of the latter band. The band crossing features of the bands have been explained as the rotation alignment of an il 3/2 quasineutron pair taking into account shape changes.

Cited by 3 publications

References 15 publications

Particle-number conserving analysis of the high- K multi-quasiparticle bands in ¹⁷⁹ Re

Particle-number conserving analysis of the high- K multi-quasiparticle bands in ¹⁷⁹ Re

Deformation studies at high spins inγ-softRe179nucleus

High-Kstates in the odd-odd nuclideRe180

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Study of band structures and crossings in179Re

Abstract: bands. This allowed to determine the excitation energy of the 9/2-member of the latter band. The band crossing features of the bands have been explained as the rotation alignment of an il 3/2 quasineutron pair taking into account shape changes.

Cited by 3 publications

References 15 publications

Particle-number conserving analysis of the high- K multi-quasiparticle bands in 179 Re

Particle-number conserving analysis of the high- K multi-quasiparticle bands in 179 Re

Deformation studies at high spins inγ-softRe179nucleus

High-Kstates in the odd-odd nuclideRe180

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Product

Resources

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Particle-number conserving analysis of the high- K multi-quasiparticle bands in ¹⁷⁹ Re

Particle-number conserving analysis of the high- K multi-quasiparticle bands in ¹⁷⁹ Re