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Author (up) Bartram, G. et al; Morales, A.I.; Orrigo, S.E.A.; Rodriguez-Garcia, D.; Tain, J.L. doi  openurl
  Title Structure of the semi-magic 203Ir and 202Os nuclei Type Journal Article
  Year 2026 Publication Physics Letters B Abbreviated Journal Phys. Lett. B  
  Volume 880 Issue Pages 140790 - 5pp  
  Keywords Nuclear structure; Lifetime measurement; Gamma-ray spectroscopy; Radioactive beams  
  Abstract The internal structures of the semi-magic, neutron-rich N=126 nuclei, 203Ir and 202Os, were studied. The nuclei of interest were produced using relativistic-energy projectile fragmentation of a 208Pb beam at the GSI facility in Germany. Internal isomeric decays were investigated via delayed gamma-ray spectroscopy. In 203Ir, four observed transitions were associated with parallel decay branches from an isomeric yrast 19/2+ state. An observed weak delayed gamma ray in 202Os is discussed in connection with a predicted isomeric 10+ state. Spin and parity assignments were made by comparison of the experimental data with state-of-the-art shell model calculations using three different shell-model parametrisations. It was found that the two-body interaction implemented to reproduce isomeric decays of the less exotic 204Pt and 206Hg isotones was the only interaction that describes the present experimental data. The persistence of the isomeric states, and the reproduction of the structure of the most neutron-rich N=126 nuclei ever observed, indicates that the N=126 shell closure remains robust.  
  Address [Bartram, G.; Podolyak, Zs.; Wilson, C. j.; Jazrawi, S.; Jones, C. e.; Pascu, S.; Parry, T. g.; Regan, P. h.] Univ Surrey, Dept Phys, Surrey GU2 7XH, England; [Albers, H. m.; Gorska, M.; Haettner, E.; Hubbard, N.; Polettini, M.; Aggez, G.; Alhomaidhi, S.; Amjad, F.; Arici, T.; Armstrong, M.; Bajzek, M.; Banerjee, A. M.; Bardak, J.; Bles, B.; Chen, Z. Q.; Dickel, T.; Dubey, S.; Ge, Z.; Gerl, J.; Gonzales, A. g.; Herrmann, P.; Hornung, C.; Jones, C. e.; Kazantseva, E.; Knobel, R.; Kojouharov, I.; Kosir, A.; Kostyleva, D.; Kurz, N.; Mikolajczuk, M.; Mistry, A. k.; Mukha, I.; Pietri, S.; Plass, W. r.; Prajapat, R.; Rocco, E.; Rosch, H.; Roy, P.; Sahin, E.; Schaffner, H.; Scheidenberger, Ch.; Sharma, A.; Singh, S. K.; Tanaka, Y. k.; Weick, H.; Wimmer, K.; Yasun, Y.; Zhao, J.] GSI Helmholtzzentrum Schwerionenforschung, D-64291 Darmstadt, Germany; [Hubbard, N.; Alhomaidhi, S.; John, P. r.; Koseoglou, P.; Mistry, A. k.; Nunns, Z.; Pietralla, N.; Rudigier, M.; Sahin, E.; Werner, V.] Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany; [Hubbard, N.; Alhomaidhi, S.; Mistry, A. k.; Pietralla, N.; Sahin, E.; Scheidenberger, Ch.; Werner, V.] Helmholtz Forschungsakademie Hessen FAIR HFHF, D-64291 Darmstadt, Germany; [Polettini, M.; Mengoni, D.; Zhang, G.] Univ Padua, I-35131 Padua, Italy; [Polettini, M.; Benedicte, M.; Benzoni, G.; Crespi, F. c. l.; Gamba, E. r.; Wieland, O.] INFN, Sez Milano, I-20133 Milan, Italy; [Polettini, M.; Crespi, F. c. l.; Gamba, E. r.] Univ Milan, I-20133 Milan, Italy; [Acosta, J.; Ferrera, C.; Jungclaus, A.] CSIC, Inst Estruct Mat, E-28006 Madrid, Spain; [Al-Aqeel, M.] Imam Mohammad Ibn Saud Islamic Univ, Riyadh, Saudi Arabia; [Alayed, B.; Alharbi, A.; Chadderton, J.; Harkness-Brennan, L.; Judson, D.; McCarter, A.; Page, R. D.; Rintoul, E.; Satrazani, M. m.] Univ Liverpool, Dept Phys, Oliver Ladge Lab, Liverpool L69 7ZE, England; [Alayed, B.] Qassim Univ, Ar Rass Coll Sci & Arts Ar Rass, Qasim, Saudi Arabia; [Alhomaidhi, S.] King Abdulaziz City Sci & Technol KACST, POB 6086, Riyadh 11442, Saudi Arabia; [Armstrong, M.; Kosir, A.] Univ Cologne, Inst Kernphys, D-50937 Cologne, Germany; [Bardak, J.; Bles, B.] Univ Novi Sad, Fac Sci, Trg Dositeja Obradovica 3, Novi Sad 21000, Serbia; [Bruce, A.] Univ Brighton, Sch Comp Engn & Math, Brighton BN2 4AT, England; [Bruno, C.; Davinson, T.; Hall, O.] Univ Edinburgh, Sch Phys & Astron, Edinburgh H9 3FD, Scotland; [Das, Biswajit.; Palit, R.] Tata Inst Fundamental Res, Dept Nucl & Atom Phys, Homi Bhabha Rd, Mumbai 400005, India; [Dickel, T.] Justus Liebig Univ Giessen, Phys Inst 2, D-35392 Giessen, Germany; [Golubev, P.; Hrabar, Y.; Plass, W. r.; Rudolph, D.; Sarmiento, L. g.; Scheidenberger, Ch.] Lund Univ, Dept Phys, S-22100 Lund, Sweden; [Gottardo, A.] INFN, Lab Nazl Legnaro, I-35020 Legnaro, Italy; [Grahn, T.] Univ Jyvaskyla, Jyvaskyla 40014, Finland; [Kosir, G.; Lovsin, E.; Vencelj, M.; Vesic, J.] Jozef Stefan Inst, Ljubljana 1000, Slovenia; [Kosir, G.; Lovsin, E.] Univ Ljubljana, Fac Math & Phys, Ljubljana 1000, Slovenia; [Labiche, M.; Papadakis, P.] STFC Daresbury Labs, Daresbury WA4 4AD, England; [Liu, M.; Yuan, C.; Zhang, G.] Sun Yat Sen Univ, Sino French Inst Nucl Engn & Technol, Zhuhai 519082, Guangdong, Peoples R China; [Lozeva, R.; Si, M.] Univ Paris Saclay, CNRS, IN2P3, IJCLab, F-91405 Orsay, France; [Mengoni, D.; Zhang, G.] INFN, Sez Padova, I-35131 Padua, Italy; [Mikolajczuk, M.] Warsaw Univ, Fac Phys, PL-02093 Warsaw, Poland; [Morales, A. i.; Orrigo, S. e. a.; Rodriguez-Garcia, D.; Tain, J. l.] Univ Valencia, CSIC, Inst Fis Corpuscular, E-46071 Valencia, Spain; [Mukherjee, G.; Roy, P.] Variable Energy Cyclotron Ctr, Kolkata 700064, India; [Singh, B. S. Nara] Univ West Scotland, Sch Comp Engn & Phys Sci, Paisley PA1 2BE, Scotland; [Regan, P. h.] Natl Phys Lab, Teddington TW11 0LW, England; [Stefanescu, I. c.] Horia Hulubei Natl Inst R&D Phys & Nucl Engn, Magurele 077025, Ilfov, Romania; [Tanaka, Y. k.] RIKEN, High Energy Nucl Phys Lab, 2-1 Hirosawa, Wako, Saitama 3510198, Japan; [Wu, J.] Michigan State Univ, Facil Rare Isotope Beams, E Lansing, MI 48824 USA, Email: z.podolyak@surrey.ac.uk;  
  Corporate Author Thesis  
  Publisher Elsevier Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0370-2693 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:001850566600001 Approved no  
  Is ISI yes International Collaboration yes  
  Call Number IFIC @ pastor @ Serial 7394  
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