Multiparticle<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>M</mml:mi><mml:mn>1</mml:mn></mml:mrow></mml:math>band in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mmultiscripts><mml:mi mathvariant="normal">La</mml:mi><mml:mprescripts /><mml:none /><mml:mrow><mml:mn>134</mml:mn></mml:mrow></mml:mmultiscripts></mml:math>

Kumar, Vinod; Das, P.; Singh, R. P.; Kumar, Rajesh; Muralithar, S.; Bhowmik, R. K.

doi:10.1103/physrevc.76.014309

Cited by 8 publications

(13 citation statements)

References 19 publications

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“…however, the possibility of other negative-parity fourquasiparticle configurations also should be taken into account. Indeed, a similar negative-parity four-quasiparticle band has been found in the neighboring 134 La and the πh 11/2 νg 7/2 (h 11/2 ) 2 [37] or πg 7/2 νh 3 11/2 [38] configuration has been assigned to it.…”

Section: Bandsupporting

confidence: 67%

Medium- and high-spin band structure of the chiral candidate132La

et al. 2013

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Medium-and high-spin states of 132 La have been studied based on the data obtained from 100 Mo( 36 S, p3n) and 116 Cd( 23 Na, α3n) fusion-evaporation reactions using the EUROBALL and Gammasphere detector arrays, respectively. Triple-γ coincidence relations, angular correlations, and linear polarizations of the observed γ transitions have been deduced. The level scheme of 132 La has been considerably extended, and unambiguous spin and parity values have been assigned to most of the excited states. The configuration of one of the bands is πg 7/2 (h 11/2 ) 2 νh 11/2 instead of the previously thought πh 11/2 νh 11/2 ; thus its previously suggested magnetic rotational character cannot be upheld. The observed similarities between the level structures of 132 La and 134 Pr suggest the possible existence of a third πh 11/2 νh 11/2 band in 132 La that may show chiral features.

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Section: Bandsupporting

confidence: 67%

Medium- and high-spin band structure of the chiral candidate132La

et al. 2013

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“…For example, an isomeric state with spin-parity of 31/2 + occurs in the odd-A isotopes in Au (Z = 79) which has the configuration of πh −1 11/2 ⊗ νi −1 13/2 νh −1 9/2 [3,4,5,6]. The systematic of the halflives of this isomer and the low-lying 11/2 − isomer in odd-A Au nuclei have been shown in 8,9,10,11,12]. For the odd-odd Cs isotopes, the band structures built on the 9 + (or 8 + ) state corresponding to the πh 11/2 ⊗ νh 11/2 configuration, have been found to be a well developed rotation like band for neutron number N = 63 to N = 77 i.e from 118 Cs to 132 Cs.…”

Section: Introductionmentioning

confidence: 94%

Transitional nuclei near shell closures

Mukherjee¹,

Pai²

2014

AIP Conference Proceedings

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High spin states in Bismuth and Thallium nuclei near the Z = 82 shell closure and Cesium nuclei near the N = 82 shell closure in A = 190 and A = 130 regions, respectively, have been experimentally investigated using heavy-ion fusion evaporation reaction and by detecting the gamma rays using the Indian National Gamma Array (INGA). Interesting shape properties in these transitional nuclei have been observed. The results were compared with the neighboring nuclei in these two regions. The total Routhian surface (TRS) calculations have been performed for a better understanding of the observed properties. In mass region A = 190, a change in shape from spherical to deformed has been observd around neutron number N = 112 for the Bi (Z = 83) isotopes with proton number above the magic gap Z = 82, whereas, the shape of Tl (Z = 81) isotopes with proton number below the magic gap Z = 82 remains stable as a function of neutron number. An important transition from aplanar to planar configuration of angular momentum vectors leading to the occurance of nuclar chirality and magnetic rotation, respectively, has been proposed for the unique parity πh 11/2 ⊗ νh 11/2 configuration in Cs isotopes in the mass region A ∼ 130 around neutron number N = 79. These results are in commensurate with the TRS calculations.

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“…Comparing with the results obtained in Ref. [13], we updated the high-spin scheme of 139 Nd. Some * zhusj@mail.tsinghua.edu.cn new levels and transitions have been identified.…”

Section: Introductionmentioning

confidence: 97%

“…In this article, we report on experimental research on high spin states and collective band structures in 139 Nd in more detail. When this work was in progress, Kumar et al [13] published some high spin states in 139 Nd. Comparing with the results obtained in Ref.…”

Section: Introductionmentioning

confidence: 99%

High-spin states and collective oblate bands inNd139

Xu¹,

Zhu²,

L.³

et al. 2008

Phys. Rev. C

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High spin states in 139 Nd nucleus have been reinvestigated with the reaction 128 Te ( 16 O, 5n) at a beam energy of 90 MeV. The level scheme has been expanded with spin up to 47/2h. At low spin, the yrast collective structure built on the νh −1 11/2 multiplet shows a triaxial shape with γ ≈ 32 • according to calculations of the triaxial rotor-plus-particle model. The configurations for some high spin states have been discussed from a systematic comparison with neighboring nuclei. Three collective oblate bands with γ ∼ −60 • at high spin were identified for the first time. A band crossing is observed aroundhω ∼ 0.4 MeV in one oblate band based on the 25/2 − level. The characteristics for these oblate bands have been discussed.

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MultiparticleM1band inLa134

Cited by 8 publications

References 19 publications

Medium- and high-spin band structure of the chiral candidate132La

Medium- and high-spin band structure of the chiral candidate132La

Transitional nuclei near shell closures

High-spin states and collective oblate bands inNd139

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