Isomeric states of fission fragments explored via Penning trap mass spectrometry at IGISOL

A. Jaries; M. Stryjczyk; A. Kankainen; L. Al Ayoubi; O. Beliuskina; L. Canete; R. P. de Groote; C. Delafosse; P. Delahaye; T. Eronen; M. Flayol; Z. Ge; S. Geldhof; W. Gins; M. Hukkanen; P. Imgram; D. Kahl; J. Kostensalo; S. Kujanpää; D. Kumar; I. D. Moore; M. Mougeot; D. A. Nesterenko; S. Nikas; D. Patel; H. Penttilä; D. Pitman-Weymouth; I. Pohjalainen; A. Raggio; M. Ramalho; M. Reponen; S. Rinta-Antila; A. de Roubin; J. Ruotsalainen; P. C. Srivastava; J. Suhonen; M. Vilen; V. Virtanen; A. Zadvornaya

doi:10.1103/PhysRevC.110.034326

Isomeric states of fission fragments explored via Penning trap mass spectrometry at IGISOL

A. Jaries ^1,*, M. Stryjczyk ^1,†, A. Kankainen ^1,‡, L. Al Ayoubi ^1,2, O. Beliuskina ¹, L. Canete ^1,§, R. P. de Groote ^1,∥, C. Delafosse ^1,¶, P. Delahaye ³ et al.

T. Eronen ¹, M. Flayol ⁴, Z. Ge ^5,1, S. Geldhof ^1,**, W. Gins¹, M. Hukkanen^1,4, P. Imgram ^6,∥, D. Kahl ^7,††, J. Kostensalo ⁸, S. Kujanpää ¹, D. Kumar ⁵, I. D. Moore ¹, M. Mougeot ¹, D. A. Nesterenko ¹, S. Nikas ¹, D. Patel ⁹, H. Penttilä ¹, D. Pitman-Weymouth ¹⁰, I. Pohjalainen¹, A. Raggio ¹, M. Ramalho ¹, M. Reponen ¹, S. Rinta-Antila ¹, A. de Roubin ^1,4,‡‡, J. Ruotsalainen¹, P. C. Srivastava ⁹, J. Suhonen ^1,11, M. Vilen ¹, V. Virtanen ¹, and A. Zadvornaya ^1,§§

¹University of Jyvaskyla, Department of Physics, Accelerator Laboratory, P.O. Box 35(YFL), FI-40014 Jyvaskyla, Finland
²Université Paris Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
³GANIL, CEA/DSM-CNRS/IN2P3, Boulevard Henri Becquerel, 14000 Caen, France
⁴Université de Bordeaux, CNRS/IN2P3, LP2I Bordeaux, UMR 5797, F-33170 Gradignan, France
⁵GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany
⁶Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
⁷Extreme Light Infrastructure – Nuclear Physics, Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering (IFIN-HH), 077125 Bucharest-Măgurele, Romania
⁸Natural Resources Institute Finland, FI-80100 Joensuu, Finland
⁹Department of Physics, Indian Institute of Technology Roorkee, Roorkee 247667, India
¹⁰Department of Physics and Astronomy, University of Manchester, Manchester M13 9PL, United Kingdom
¹¹International Centre for Advanced Training and Research in Physics (CIFRA), P.O. Box MG12, 077125 Bucharest-Măgurele, Romania

^*Contact author: arthur.a.jaries@jyu.fi
^†Contact author: marek.m.stryjczyk@jyu.fi
^‡Contact author: anu.kankainen@jyu.fi
^§Present address: Northeastern University London, Devon House, 58 St Katharine's Way, E1W 1LP, London, United Kingdom.
^∥Present address: KU Leuven, Instituut voor Kern- en Stralingsfysica, B-3001 Leuven, Belgium.
^¶Present address: Université Paris Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France.
^**Present address: GANIL, CEA/DRF-CNRS/IN2P3, B.P. 55027, 14076 Caen, France.
^††Present address: Facility for Rare Isotope Beams, Michigan State University, East Lansing, MI, USA.
^‡‡Present address: LPC Caen, Normandie Univ., 14000 Caen, France.
^§§Present address: University of Edinburgh, Edinburgh EH9 3FD, United Kingdom.

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Phys. Rev. C 110, 034326 – Published 26 September, 2024

DOI: https://doi.org/10.1103/PhysRevC.110.034326

Abstract

The masses of ${}^{84}{Br}, {}^{105}{Mo}, {}^{115, 119, 121}{Pd}, {}^{122}{Ag}, {}^{127, 129}{In}, {}^{132}{Sb}$ , and their respective isomeric states have been measured with the JYFLTRAP Penning trap mass spectrometer using the phase-imaging ion-cyclotron-resonance technique. The excitation energies of the isomeric states in ${}^{132}{Sb}$ and ${}^{119}{Pd}$ were experimentally determined for the first time, while for ${}^{84}{Br}, {}^{115}{Pd}$ , and ${}^{127, 129}{In}$ , the precision of the mass values was substantially improved. In ${}^{105}{Mo}$ and ${}^{121}{Pd}$ there were no signs of a long-lived isomeric state. The ground-state measurements of ${}^{119}{Pd}$ and ${}^{122}{Ag}$ indicated that both are significantly more bound than the literature values. For ${}^{122}{Ag}$ , there was no indication of a proposed third long-lived state. The results for the $N = 49$ nucleus ${}^{84}{Br}$ and isomers close to doubly magic ${}^{132}{Sn}$ have been compared to the shell-model and the microscopic quasiparticle-phonon model calculations.

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Corrections

12 February, 2025

Correction: An error in the value given for the frequency ratio in the thirteenth row of the sixth column of Table I has been fixed.

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Isomeric states of fission fragments explored via Penning trap mass spectrometry at IGISOL

Abstract

Physics Subject Headings (PhySH)

Corrections

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Mass measurements in the ${}^{132}{Sn}$ region with the JYFLTRAP double Penning trap mass spectrometer

High-Precision Mass Measurements of Neutron Deficient Silver Isotopes Probe the Robustness of the $N = 50$ Shell Closure

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Isomeric states of fission fragments explored via Penning trap mass spectrometry at IGISOL

Abstract

Physics Subject Headings (PhySH)

Corrections

See Also

Mass measurements in the Sn132 region with the JYFLTRAP double Penning trap mass spectrometer

High-Precision Mass Measurements of Neutron Deficient Silver Isotopes Probe the Robustness of the N=50 Shell Closure

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Mass measurements in the ${}^{132}{Sn}$ region with the JYFLTRAP double Penning trap mass spectrometer

High-Precision Mass Measurements of Neutron Deficient Silver Isotopes Probe the Robustness of the $N = 50$ Shell Closure