Effects of intruder states in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">Ir</mml:mi></mml:mrow><mml:mprescripts /><mml:mrow /><mml:mrow><mml:mn>179</mml:mn></mml:mrow><mml:mrow /><mml:mrow /></mml:mmultiscripts></mml:mrow></mml:math>

Jin, H. Q.; Riedinger, L. L.; Bingham, C. R.; Carpenter, M. P.; Janzen, V. P.; Yu, C. H.; Zhou, L.; Semmes, P.B.; Zhang, J. Y.; Riley, M. A.; Baktash, C.; Halbert, M. L.; Johnson, N.R.; Lee, I. Y.; McGowan, F.K.

doi:10.1103/physrevc.53.2106

Cited by 19 publications

(2 citation statements)

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“…From 173 Ir to 181 Ir rotational bands consistent with configurations based on h 11/2 , h 9/2 , and i 13/2 orbitals of prolate shape have been observed up to high spins [10][11][12][13][14]. In the lightest odd-mass isotopes, 171−175 Ir, triaxiality again is an important feature as the yrast bands show increasing signature splitting with decreasing neutron number.…”

Section: Introductionmentioning

confidence: 97%

First identification of excited states inIr169

Sandzelius¹,

Scholey²,

Cederwall³

et al. 2007

Phys. Rev. C

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Gamma rays populating the α-decaying isomeric state in 169 Ir have been observed for the first time. The experiment employed the recoil-decay tagging method using the JUROGAM γ -ray spectrometer, the RITU gas-filled recoil separator and the GREAT spectrometer located at the RITU focal plane. The γ -ray cascade feeding the isomeric α-decaying state exhibits a rotational structure consistent with a h 11/2 proton coupled to a triaxially deformed core. The experimental results are compared with predictions from total Routhian surface calculations.

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Section: Introductionmentioning

confidence: 97%

First identification of excited states inIr169

Sandzelius¹,

Scholey²,

Cederwall³

et al. 2007

Phys. Rev. C

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“…Thus excitation of an odd particle to any of these configurations presents the possibility of examining the effects on the collectivity and the associated nuclear shapes. The shape driving property of these intruder single-particle orbitals for the rare earth nuclei has been comprehensively studied by Jin et al [1]. The lifetime measurements in 171,173 Ta, 177 Re, and 179 Ir [2][3][4][5] nuclei have confirmed the deformation driving properties of these single-particle orbitals, and the delay of ϳ70 keV observed in the band crossing frequency for this low K͑1/2͒ h 9/2 band as compared to the band crossing frequency for the ground state band in the nearest even-even neighbors and also compared to the other bands in these nuclei is interpreted as because of the higher deformation for this band.…”

Section: Introductionmentioning

confidence: 99%

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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