Masses of ground and isomeric states of 
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 and configuration-dependent shell evolution in odd-
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 indium isotopes

Xu, X.; Liu, J. H.; Yuan, C. X.; Xing, Y. M.; Wang, M.; Zhang, Y. H.; Litvinov, Yu. A.; Blaum, Klaus; Chen, R. J.; Chen, X. C.; Fu, Chuancheng; Gao, Bo; He, J. J.; Kubono, S.; Lam, Y. H.; Li, H. F.; Liu, M. L.; Ma, X. W.; Peng, Shuai; Si, M.; Sun, Mingze; Tu, X. L.; Wang, Q.; Xu, Hu; Yan, X. L.; Jiang, Yang; Yuan, Y. J.; Zeng, Q.; Zhang, P.; Zhou, X. H.; Zhan, W.; Litvinov, S.; Audi, G.; Naimi, S.; Uesaka, T.; Yamaguchi, Yoshitaka; Yamaguchi, Takayuki; Ozawa, A.; Sun, B. H.; Kaneko, Kazunari; Sun, Y.; Fang, Xu

doi:10.1103/physrevc.100.051303

Cited by 24 publications

(13 citation statements)

References 47 publications

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“…This presents strong motivation for additional theoretical studies similar to those presented in Ref. [50] extending beyond N = 82 to pinpoint the microscopic interactions driving the increased isomer excitation energy. The trend of the 1/2 − excitation energy across the indium isotopic chain is presented in Fig.…”

Section: Inmentioning

confidence: 59%

“…The TITAN Penning trap measured a 41 keV shift from the ENSDF value, reporting an excitation energy of 359 (34) keV. The new JYFLTRAP measurement [9], which fully resolved the 130 In ground state and both isomers, found a 385.5 (50) keV excitation energy for 130 In m2 , between the TITAN Penning trap and ENSDF values. The TITAN MR-TOF-MS measured the 130 In m2 excitation energy to be 370 (25) keV, in agreement with both Penning trap measurements.…”

Section: Inmentioning

confidence: 92%

“…These two isomeric states could not be resolved by the MR-TOF-MS, so a single peak fit was used to fit the two unresolved states and the reported mass of 129 In m2 * was adjusted as described previously. 130 In 130 In has a low-lying isomer with an excitation energy recently reported by JYFLTRAP as 58.6(82) keV [9], improving the uncertainty from the ENSDF value of 50 (50) keV [37] based on Q β − measurements [44]. This state could not be resolved from the ground state in either the TITAN Penning trap or MR-TOF-MS measurements.…”

Section: Inmentioning

confidence: 98%

“…Thus the excitation energy of the 1/2 − isomer reflects the energy gap between the π2p 1/2 and π1g 9/2 orbitals. Recent studies of these isomer excitation energies for neutron-deficient indium [50,51] have demonstrated the sensitivity of this gap to neutron occupation numbers. The JYFLTRAP measurements of 129 In and 131 In isomers [43] clarified the trend of the 1/2 − excitation energy up to the N = 82 shell closure.…”

Section: Inmentioning

confidence: 99%

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Mass measurements of neutron-rich indium isotopes for r -process studies

Izzo¹,

Bergmann²,

Dietrich³

et al. 2021

Phys. Rev. C

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A new series of neutron-rich indium mass measurements are reported from the TITAN multiplereflection time-of-flight mass spectrometer (MR-TOF-MS). These mass measurements cover 125−134 In (N = 76 − 85) and include ground states as well as isomeric states. The masses of nuclei in this region are known to be of great importance for accurately modeling r-process nucleosynthesis, and the significance of the reported neutron-rich indium masses is discussed in this context. Results are compared with earlier experimental data where available as well as theoretical mass models. The measurements reported here include the first mass measurements of 133,134 In, as well as the first direct mass measurement of 132 In. The masses of 125−131 In ground states and several isomers were previously measured to higher precision by Penning trap mass spectrometry, which also resolved some low-lying isomers that could not be resolved in this work. The earlier Penning trap measurements serve as excellent cross-checks for the MR-TOF-MS measurements, and in some cases the MR-TOF-MS measurements improve the literature uncertainties of higher-lying isomer masses and excitation energies. A new isomeric state for 128 In, recently reported for the first time by the JYFLTRAP group, is also confirmed by the TITAN MR-TOF-MS, with a measured excitation energy of 1813(17) keV.

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Section: Inmentioning

confidence: 59%

Section: Inmentioning

confidence: 92%

Section: Inmentioning

confidence: 98%

Section: Inmentioning

confidence: 99%

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Mass measurements of neutron-rich indium isotopes for r -process studies

Izzo¹,

Bergmann²,

Dietrich³

et al. 2021

Phys. Rev. C

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show abstract

“…The shell model is an essential tool for the systematic understanding of the nuclear structure. Recently, it has been employed in describing light, proton-rich, exotic nuclei and the related isospin symmetry breaking [30][31][32][33], interpreting the shell evolution in the medium mass region [34,35], reproducing isomeric states in the medium [36,37] and heavy nuclei [38][39][40], and investigating the α-decay properties of heavy-mass nuclei [41,42].…”

Section: Introductionmentioning

confidence: 99%

Cross-Shell Excitation in F and Ne Isotopes around N = 20

Liu

Yuan

2021

Symmetry

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Within the framework of the configuration–interaction shell model, the present work applies three effective interactions to investigate the effects of the cross-shell excitation on F and Ne isotopes around N = 20, which are significantly proton–neutron asymmetric, and have different properties compared with the proton–neutron symmetric nuclei. It is shown that cross-shell excitation is necessary in order to reproduce separation energies, neutron drip lines, and low-energy levels of these isotopes. Furthermore, the cross-shell excitation of (0–5)ħω is suggested to be important in the description of 29F and 30Ne. However, the three interactions are insufficient in describing the bound structure of 29,31Ne, and provide inconsistent shell structures and evolutions in the target nuclei. Their cross-shell interactions are suggested to be improved.

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Nuclear Isomers

Walker¹,

Podolyák²

2022

Handbook of Nuclear Physics

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Masses of ground and isomeric states of In101 and configuration-dependent shell evolution in odd- A indium isotopes

Cited by 24 publications

References 47 publications

Mass measurements of neutron-rich indium isotopes for r -process studies

Mass measurements of neutron-rich indium isotopes for r -process studies

Cross-Shell Excitation in F and Ne Isotopes around N = 20

Nuclear Isomers

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