Search for Weak Side Branches in the Electromagnetic Decay Paths of the 6526-keV 10+ Isomer in 54Fe

Böhm, Paul; Hrabar, Yuliia; Rudolph, Dirk; Golubev, Pavel; Sarmiento Pico, Luis Gerardo; Albers, Helena M.; Anderson, John T.; Bentley, Michael A.; Carpenter, Michael P.; Chiara, Christopher J.; Copp, Patrick A.; Forsberg, Ulrika; Huang, Tianheng; Jayatissa, Heshani; Lauritsen, Torben; Müller-Gatermann, Claus; Pereira-Lopez, Xesus; Reviol, Walter; Seweryniak, Darek; Stolze, Sanna; Uthayakumaar, Sivahami; Wilson, Gemma L.; Wu, Jin

doi:10.3390/atoms11090116

Search for Weak Side Branches in the Electromagnetic Decay Paths of the 6526-keV 10⁺ Isomer in ⁵⁴Fe

Journal Article · Thu Aug 24 00:00:00 EDT 2023 · Atoms

DOI:https://doi.org/10.3390/atoms11090116· OSTI ID:2205646

Böhm, Paul ^[1]; ^[1]; ^[1]; Golubev, Pavel ^[1]; ^[1]; ^[2]; Anderson, John T. ^[3]; ^[4]; Carpenter, Michael P. ^[3]; ^[5]; Copp, Patrick A. ^[6]; Forsberg, Ulrika ^[7]; Huang, Tianheng ^[3]; ^[6]; ^[3]; ^[3]; ^[8]; Reviol, Walter ^[3]; Seweryniak, Darek ^[3]; Stolze, Sanna ^[3] more »

Lund Univ. (Sweden)
GSI-Helmholtzzentrum fur Schwerionenforschung, Darmstadt (Germany)
Argonne National Laboratory (ANL), Argonne, IL (United States)
Univ. of York (United Kingdom)
Army Research Lab., Adelphi, MD (United States)
Argonne National Laboratory (ANL), Argonne, IL (United States); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Lund Univ. (Sweden); Studsvik AB (Sweden)
Univ. of York (United Kingdom); Institute for Basic Science, Seoul (Korea, Republic of)
Univ. of York (United Kingdom); Michigan State Univ., East Lansing, MI (United States)
Argonne National Laboratory (ANL), Argonne, IL (United States); Louisiana State Univ., Baton Rouge, LA (United States); United Kingdom Atomic Energy Authority (UKAEA), Abingdon (United Kingdom)
Argonne National Laboratory (ANL), Argonne, IL (United States); Brookhaven National Laboratory (BNL), Upton, NY (United States)

High-spin nuclear isomers in $N≈Z$ nuclei between doubly magic ⁴⁰Ca and ⁵⁶Ni provide an excellent testing ground for the nuclear shell model and questions related to isospin symmetry breaking in the vicinity of the proton drip line. The purpose of the present study is to investigate the possibility of weak electromagnetic decay branches along the decay paths of the 6526-keV 10⁺ isomer in ⁵⁴Fe. The isomer was strongly populated by means of the fusion-evaporation reaction ²⁴Mg(³⁶Ar,$$α$$2$$p$$)^54$$m$$Fe. The Gammasphere array was used to detect $$γ$$-ray cascades emitted from the isomeric state. By means of $γγγ$ coincidences, weak non-yrast decay branches can be discriminated, with the isomer’s half-life confirmed at $$T$$_1/2 = 363 (4) ns. The yrast $${6}_{1}^{+}$$ → $${2}_{1}^{+}$$ $E4$ cross-over transition was interrogated. The observations are compared with shell-model calculations.

View Accepted Manuscript (DOE)

Research Organization:: Argonne National Laboratory (ANL), Argonne, IL (United States); Brookhaven National Laboratory (BNL), Upton, NY (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF); USDOE Office of Science (SC), Nuclear Physics (NP)

Grant/Contract Number:: AC02-06CH11357; SC0012704

OSTI ID:: 2205646

Report Number(s):: BNL--224946-2023-JAAM

Journal Information:: Atoms, Journal Name: Atoms Journal Issue: 9 Vol. 11; ISSN 2218-2004

Publisher:: MDPICopyright Statement

Country of Publication:: United States

Language:: English

References (21)

The argonne fragment mass analyzer Davids, Cary N.; Larson, James D. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 40-41 https://doi.org/10.1016/0168-583X(89)90624-1	journal	April 1989
53Com: A proton-unstable isomer Jackson, K. P.; Cardinal, C. U.; Evans, H. C. Physics Letters B, Vol. 33, Issue 4 https://doi.org/10.1016/0370-2693(70)90269-8	journal	October 1970
Confirmed proton radioactivity of 53Com Cerny, J.; Esterl, J. E.; Gough, R. A. Physics Letters B, Vol. 33, Issue 4 https://doi.org/10.1016/0370-2693(70)90270-4	journal	October 1970
Static moments of 54Fem and perturbed angular distributions with combined dipole and quadrupole interactions Dafni, E.; Noé, J. W.; Rafailovich, M. H. Physics Letters B, Vol. 76, Issue 1 https://doi.org/10.1016/0370-2693(78)90097-7	journal	May 1978
The GAMMASPHERE Lee, I-Yang Nuclear Physics A, Vol. 520 https://doi.org/10.1016/0375-9474(90)91181-P	journal	December 1990
“The microball” Design, instrumentation and response characteristics of a 4π-multidetector exit channel-selection device for spectroscopic and reaction mechanism studies with Gammasphere Sarantites, D. G.; Hua, P. -F.; Devlin, M. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 381, Issue 2-3 https://doi.org/10.1016/S0168-9002(96)00785-1	journal	November 1996
Nuclear Data Sheets for A = 54 Dong, Yang; Junde, Huo Nuclear Data Sheets, Vol. 121 https://doi.org/10.1016/j.nds.2014.09.001	journal	September 2014
“Neutron Shell”: a high efficiency array of neutron detectors for γ-ray spectroscopic studies with Gammasphere Sarantites, D. G.; Reviol, W.; Chiara, C. J. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 530, Issue 3 https://doi.org/10.1016/j.nima.2004.04.243	journal	September 2004
Proton 3D tracking and emission time from a short-lived isomer with ACTAR TPC Giovinazzo, J.; Roger, T.; Blank, B. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 1042 https://doi.org/10.1016/j.nima.2022.167447	journal	November 2022
Mirror energy differences above the 0f7/2 shell: First γ-ray spectroscopy of the T = −2 nucleus 56Zn Fernández, A.; Jungclaus, A.; Doornenbal, P. Physics Letters B, Vol. 823 https://doi.org/10.1016/j.physletb.2021.136784	journal	December 2021
Mirror symmetry at mass A = 54: E4 effective charges near doubly magic 56Ni Rudolph, D.; Blank, B.; Giovinazzo, J. Physics Letters B, Vol. 830 https://doi.org/10.1016/j.physletb.2022.137144	journal	July 2022
Coulomb energy differences between high-spin states in isobaric multiplets Bentley, M. A.; Lenzi, S. M. Progress in Particle and Nuclear Physics, Vol. 59, Issue 2 https://doi.org/10.1016/j.ppnp.2006.10.001	journal	October 2007
4D-imaging of drip-line radioactivity by detecting proton emission from 54mNi pictured with ACTAR TPC Giovinazzo, J.; Roger, T.; Blank, B. Nature Communications, Vol. 12, Issue 1 https://doi.org/10.1038/s41467-021-24920-0	journal	August 2021
Single-particle and collective excitations in the N = 28 isotones Fe 54 and Mn 53 Rudolph, D.; Ragnarsson, I.; Andreoiu, C. Physical Review C, Vol. 102, Issue 1 https://doi.org/10.1103/PhysRevC.102.014316	journal	July 2020
Isospin-breaking interactions studied through mirror energy differences Bentley, M. A.; Lenzi, S. M.; Simpson, S. A. Physical Review C, Vol. 92, Issue 2 https://doi.org/10.1103/PhysRevC.92.024310	journal	August 2015
Neutron Skins and Halo Orbits in the s d and p f Shells Bonnard, J.; Lenzi, S. M.; Zuker, A. P. Physical Review Letters, Vol. 116, Issue 21 https://doi.org/10.1103/PhysRevLett.116.212501	journal	May 2016
Direct Measurement of Hexacontatetrapole, E6 γ Decay from Fe53m Palazzo, T.; Mitchell, A. J.; Lane, G. J. Physical Review Letters, Vol. 130, Issue 12 https://doi.org/10.1103/PhysRevLett.130.122503	journal	March 2023
Effective Charges in the f p Shell du Rietz, R.; Ekman, J.; Rudolph, D. Physical Review Letters, Vol. 93, Issue 22 https://doi.org/10.1103/PhysRevLett.93.222501	journal	November 2004
MIRROR SYMMETRY IN THE UPPER fp SHELL Ekman, JÖRgen; Fahlander, Claes; Rudolph, Dirk Modern Physics Letters A, Vol. 20, Issue 39 https://doi.org/10.1142/S0217732305019018	journal	December 2005
Excited States in Isobaric Multiplets—Experimental Advances and the Shell-Model Approach Bentley, Michael A. Physics, Vol. 4, Issue 3 https://doi.org/10.3390/physics4030066	journal	September 2022
Isospin-Symmetry Breaking within the Nuclear Shell Model: Present Status and Developments Smirnova, Nadezda A. Physics, Vol. 5, Issue 2 https://doi.org/10.3390/physics5020026	journal	March 2023

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
electromagnetic transitions
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Search for Weak Side Branches in the Electromagnetic Decay Paths of the 6526-keV 10+ Isomer in 54Fe

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Search for Weak Side Branches in the Electromagnetic Decay Paths of the 6526-keV 10⁺ Isomer in ⁵⁴Fe