In-beam study and structure of the N = 82 nucleus 141Pr

Prade, H.; Enghardt, W.; Jäger, H.U.; Käubler, L.; Keller, H.; Stary, F.

doi:10.1016/0375-9474(81)90754-5

Cited by 28 publications

(9 citation statements)

References 18 publications

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“…1). On the other hand, the low-lying part of the level scheme of 139 La can be compared to the one of 141 Pr, which exhibits both the 5/2 + state and the 7/2 + one in the in-beam studies [20]. This leads the spin values of the 1381-, 1537-and 1711-keV states to be 9/2 + , 11/2 + , and 13/2 + , respectively.…”

Section: Angular Correlations Of Transitions Emitted Bymentioning

confidence: 99%

High-spin structures of fiveN=82isotopes:54136Xe,
Astier
¹
,
Porquet
²
,
Venkova
³

et al. 2012
Phys. Rev. C

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Five N = 82 isotones have been produced in two fusion-fission reactions and their γ rays studied with the Euroball array. The high-spin states of 139 La have been identified for the first time, while the high-spin yrast and near-to-yrast structures of the four others have been greatly extended. From angular correlation analysis, spin values have been assigned to some states of 136 Xe and 137 Cs. Several cascades involving γ rays of 139 La have been found to be delayed, they deexcite an isomeric state with T 1/2 = 315(35) ns located at 1800-keV excitation energy. The excited states of these five N = 82 isotones are expected to be due to various proton excitations involving the three high-j subshells located above the Z = 50 shell closure. This is confirmed by the results of shell-model calculations performed in this work. In addition, high-spin states corresponding to the excitation of the neutron core have been unambiguously identified in 136 Xe, 137 Cs, and 138 Ba.

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Section: Angular Correlations Of Transitions Emitted Bymentioning

confidence: 99%

High-spin structures of fiveN=82isotopes:54136Xe,
Astier
¹
,
Porquet
²
,
Venkova
³

et al. 2012
Phys. Rev. C

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“…(ii) The 13/2 + state: The observed 1811-keV level is a good candidate for association with the computed 13/2 + state due to the proposed spin assignment and an energy difference between the data and calculations of 142 keV. One of the nearby N = 82 isotones, 141 Pr, also has a low-lying (E = 1767 keV) 13/2 + level [19], and it is interesting to compare the decay branches from the 13/2 + states in both nuclei. The 141 Pr nucleus has a lowlying (E = 1118 keV) 11/2 − state to which the 13/2 + level decays most strongly, but the 13/2 + → 11/2 + transition is the next strongest decay branch.…”

Section: Resultsmentioning

confidence: 93%

Low-spin structure of the N=82 nucleus Cs137

et al. 2018

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Excited states in 137 Cs have been studied by using the near-barrier, single-proton transfer reaction 10 B(136 Xe, 9 Beγ) 137 Cs in inverse kinematics and performing particle-γ and particle-γγ coincidence measurements. The low-spin level scheme of 137 Cs has been augmented: (i) The expected set of single-proton, seniority υ = 1 states has been delineated in its entirety; (ii) Another member of the υ = 3 proton 0g 7/2 multiplet, a low-lying 9/2 + level, has been identified and this set of states now approaches completion; (iii) A second 9/2 + and a candidate 13/2 + level have been observed. The results are discussed in the framework of shell-model calculations in the proton 2s1d0g0h shell.

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“…Hence, for the states, J π 6 + seniority must be ν 4 with breaking a second or more proton pair (up to J 12). Although the admixture of configuration from the πd 3/2 and πs 1/2 orbitals are small but very crucial to generate the correct level scheme [48,49]. In doubly even nuclei, odd parity states J π 9 − are generated by the (πh 11/2 , πd 5/2 ) and (πh 11/2 , πg 7/2 ) multiplets.…”

Section: Similarity Between Sn and Pb Regionsmentioning

confidence: 99%

Systematic shell model study for N = 82 and N = 126 isotones and nuclear isomers

Bhoy¹,

Srivastava²

2022

J. Phys. G: Nucl. Part. Phys.

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In the present work, we have done a systematic shell model study of $N=82$ and $N=126$ isotones. For the $N=82$ isotones, we have performed calculations using SN100PN interaction, while for $N=126$ isotones, we have used KHPE interaction. Similarities between these two isotonic chains have been reported, using the strong resemblance between the high-$j$ orbitals. Apart from the nuclear spectroscopic properties, we have also explained different isomeric states in these two regions. In the $N$ =82 region, we have mainly discussed properties of the $6^+$ and $17/2^+$ isomers, while in the $N=126$ region for $8^+$, $11^-$, $21/2^-$ and $29/2^+$ isomers. We have reported $B(E2)$, $B(E3)$, $g$-factor, and quadrupole moments of the isomeric states for comparison in these two isotonic chains.

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In-beam study and structure of the N = 82 nucleus 141Pr

Cited by 28 publications

References 18 publications

High-spin structures of fiveN=82isotopes:54136Xe,
Astier
¹
,
Porquet
²
,
Venkova
³

et al. 2012
Phys. Rev. C

High-spin structures of fiveN=82isotopes:54136Xe,
Astier
¹
,
Porquet
²
,
Venkova
³

et al. 2012
Phys. Rev. C

Low-spin structure of the N=82 nucleus Cs137

Systematic shell model study for N = 82 and N = 126 isotones and nuclear isomers

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In-beam study and structure of the N = 82 nucleus 141Pr

Cited by 28 publications

References 18 publications

High-spin structures of fiveN=82isotopes:54136Xe,Astier1, Porquet2, Venkova3 et al. 2012Phys. Rev. C

High-spin structures of fiveN=82isotopes:54136Xe,Astier1, Porquet2, Venkova3 et al. 2012Phys. Rev. C

Low-spin structure of the N=82 nucleus Cs137

Systematic shell model study for N = 82 and N = 126 isotones and nuclear isomers

Contact Info

Product

Resources

About

High-spin structures of fiveN=82isotopes:54136Xe,
Astier
¹
,
Porquet
²
,
Venkova
³

et al. 2012
Phys. Rev. C

High-spin structures of fiveN=82isotopes:54136Xe,
Astier
¹
,
Porquet
²
,
Venkova
³

et al. 2012
Phys. Rev. C