Rotational structures in the 125Cs nucleus

Singh, K. P.; Sihotra, S.; Malik, Sushma; Goswamy, J.; Mehta, D.; Singh, Narinder; Kumar, Rajesh; Singh, R. P.; Muralithar, S.; Paul, E. S.; Sheikh, Javaid A.; Praharaj, C. R.

doi:10.1140/epja/i2006-10005-1

Cited by 20 publications

(18 citation statements)

References 14 publications

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“…A number of three-QP bands have been observed in odd-mass iodine and cesium nuclei in this mass region [6,8,11,12,[31][32][33][34][35][36]. The band heads lie between 2.0-and 3.0-MeV excitation, with spins at ∼ 21/2.…”

Section: Three-quasiparticle Band Dmentioning

confidence: 92%

High-spin states in127I

et al. 2012

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In-beam γ spectroscopy of the stable nucleus 127 I has been studied experimentally using the 124 Sn( 7 Li, 4nγ ) 127 I reaction at a beam energy of 32 MeV. The high-spin level scheme of 127 I is extended significantly. Negative-parity levels built on the 11/2 − , πh 11/2 particle state are observed up to (35/2 − ) and described as a decoupled band, extending our knowledge of decoupled structures to the most neutron-rich stable iodine isotope. Two I = 2 yrast positive-parity sequences are proposed to be associated with the πg 7/2 configuration due to observations of several strong interband transitions, and two weakly populated I = 2 positive-parity bands are newly identified and interpreted as arising mainly from the πd 5/2 configuration. Three-quasiparticle configurations are assigned to the I π = 15/2 + and 23/2 + states according to the existing knowledge in neighboring nuclei; irregular noncollective and regular collective excitations built on these two (15/2 + and 23/2 + ) states are observed to coexist at similar energies. The observed three-quasiparticle band structures are further interpreted with the aid of configuration-constrained potential energy surface calculations.

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Section: Three-quasiparticle Band Dmentioning

confidence: 92%

High-spin states in127I

et al. 2012

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“…(6), for the equation of state ǫ(n) (to calculate the ground-state density we have used a highly accurate variational approach of Ref. [41]). The curves explicitly show the nonmonotonic behavior of ω rad in the agreement with a schematic interpolation of Ref.…”

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confidence: 99%

Dynamics of strongly interacting Fermi gases of atoms in a harmonic trap

Kim

Zubarev

2004

Physics Letters A

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“…Moreover, the nearly degenerate doublet bands indicate the possible existence of chirality in 125,129,131 Cs, although not discussed specifically and systematically in those Refs. [26][27][28]. On the other hand, the bands 4 and 6 in 127 Cs [29] show very good similarity in level scheme as the doublet bands in 125,129,131 Cs, but assigned a different configuration of πg 7/2 /d 5/2 ⊗ νh −2 11/2 .…”

Section: Introductionmentioning

confidence: 85%

“…For the neighboring odd-A cesium isotopes, three-quasiparticle configurations based on high-j proton particle and neutron hole configuration πh 11/2 ⊗ νh −1 11/2 can be easily constructed and therefore the nuclear chirality is highly expected. In 125,129,131 Cs, a pair of bands has been observed involving the configuration of the πh 11/2 ⊗ νh −1 11/2 component with the third neutron quasiparticle in the orbital of s 1/2 /d 3/2 /g 7/2 [26][27][28]. Moreover, the nearly degenerate doublet bands indicate the possible existence of chirality in 125,129,131 Cs, although not discussed specifically and systematically in those Refs.…”

Section: Introductionmentioning

confidence: 92%

Systematic investigations of positive-parity doublet bands with three-quasiparticle configurations in Cs125,127,129,131

Guo

Sun

et al. 2019

Phys. Rev. C

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The experimental features of positive-parity doublet bands in the odd-A cesium isotopes 125,127,129,131 Cs, including angular momentum alignment, energy staggering,are studied systematically and compared to those of the candidate chiral bands in the adjacent odd-odd Cs isotopes. The configuration assignments and the dynamics of these bands are discussed. The self-consistent tilted axis cranking relativistic mean-field calculations are performed with configuration reassigned to these bands. The experimental level schemes of four nuclei are well reproduced, and the calculations also show four nuclei have obvious triaxial deformations and thus support the candidate chiral doublet bands in 125,127,129,131 Cs.

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Rotational structures in the 125Cs nucleus

Cited by 20 publications

References 14 publications

High-spin states in127I

High-spin states in127I

Dynamics of strongly interacting Fermi gases of atoms in a harmonic trap

Systematic investigations of positive-parity doublet bands with three-quasiparticle configurations in Cs125,127,129,131

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