Three beta-decaying states in 128In and 130In resolved for the first time using Penning-trap techniques

Nesterenko, D. A.; Kankainen, A.; Kostensalo, Joel; Nobs, C.R.; Bruce, A. M.; Beliuskina, O.; Cañete, L.; Eronen, T.; Gamba, E. R.; Geldhof, S.; Groote, R. P. de; Jokinen, A.; Kurpeta, J.; Moore, Iain; Morrison, L.; Podolyák, Zs.; Pohjalainen, I.; Rinta‐Antila, S.; Roubin, A. de; Rudigier, M.; Suhonen, J.; Vilén, M.; Virtanen, V.; Äystö, J.

doi:10.1016/j.physletb.2020.135642

Cited by 21 publications

(29 citation statements)

References 51 publications

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“…3. Isomer excitation energies measured in this work, plotted in comparison to those reported in ENSDF [37] and the recent Penning trap measurements from TITAN [8] and JYFLTRAP [9]. Bands indicate the uncertainty.…”

Section: Resultsmentioning

confidence: 87%

“…Previous literature values are presented as well: ground state ME are from Ame2016 [3] and isomer ME are taken from Nubase2016 [28]. ME from the TITAN Penning trap measurements (Babcock2018) [8] and the recent JYFLTRAP measurements (Nesterenko2020) [9] are listed for comparison as well. Listed half-lives and spin/parity assignments are from ENSDF [29][30][31][32][33][34][35][36][37], except for 128 In m2 , which comes from [9].…”

Section: Discussionmentioning

confidence: 99%

“…The isomer excitation energy for 125 In was taken from the current ENSDF evaluation [29,37], while the isomer excitation energies used for the evaluation of 126 In and 130 In were taken from the recent TITAN [8] and JYFLTRAP [9] Penning trap measurements, respectively, as these had smaller uncertainties than the ENSDF values. [29][30][31][32][33][34][35][36][37] are presented as well as the TITAN Penning trap measurements (Babcock2018) [8] and the recent JYFLTRAP measurements (Nesterenko2020) [9]. In cases where the isomer excitation energies from ENSDF differ from those reported in Nubase2016, the Nubase values [28] are also listed in brackets.…”

Section: Discussionmentioning

confidence: 99%

“…In cases where the isomer excitation energies from ENSDF differ from those reported in Nubase2016, the Nubase values [28] are also listed in brackets. Listed half-lives and spin/parity assignments are from ENSDF, except for 128 In m2 , which comes from [9]. *Indicates cases where excitation energy and uncertainty were adjusted to account for unresolved isomers (see text for details).…”

Section: Discussionmentioning

confidence: 99%

“…More recently, a series of high-precision Penning trap mass measurements were carried out at TRIUMF's Ion Trap for Atomic and Nuclear science (TITAN) [7], measuring the masses of indium ground states and several long-lived (t 1/2 > 100 ms) isomers from A = 125−130 [8]. JYFLTRAP has also recently reported new Penning trap mass measurements of 128,130 In [9], including the observation of a new isomeric state for 128 In and resolving a low-lying isomer for 130 In that was not resolved in the previous CPT or TITAN measurements.…”

Section: Introductionmentioning

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: Resultsmentioning

confidence: 87%