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Author (up) Wimmer, K. et al; Huyuk, T. url  doi
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  Title Precision tests of isospin symmetry through Coulomb excitation of A=62 nuclei Type Journal Article
  Year 2026 Publication Physics Letters B Abbreviated Journal Phys. Lett. B  
  Volume 876 Issue Pages 140391 - 6pp  
  Keywords Rare isotope beams; Electromagnetic transition probabilities; Coulomb excitation; Isospin symmetry  
  Abstract Isospin symmetry in the A = 62 mass system was investigated through Coulomb excitation reactions at the RIKEN Radioactive Isotope Beam Factory. Beams of 62Zn, 62Ga, and 62Ge were studied using the BigRIPS-ZeroDegree-DALI2+ setup under identical experimental conditions, allowing for cancellation of systematic uncertainties. Inelastic scattering cross sections measured with two different targets were used to extract nuclear deformation lengths and E2 matrix elements. The isospin symmetry of the A = 62 system was rigorously tested by examining the linearity of the proton matrix elements within the triplet with high precision. The observed linear relationship between the reduced proton matrix elements for the three nuclei holds within experimental uncertainties, providing a stringent test of isospin symmetry. This experiment provides the most accurate test, to date, of isospin symmetry rules using transition matrix elements. These results were interpreted using large-scale shell-model calculations, offering valuable insights into isospin symmetry behavior in this region of the nuclear chart.  
  Address [Wimmer, K.; Arici, T.] GSI Helmholtzzentrum Schwer Forsch, D-64291 Darmstadt, Germany; [Wimmer, K.; Koiwai, T.; Niikura, M.; Taniuchi, R.] Univ Tokyo, Dept Phys, Bunkyo Ku, Hongo, Tokyo 1130033, Japan; [Wimmer, K.; Browne, F.; Doornenbal, P.; Koiwai, T.; Mauss, B.; Taniuchi, R.] RIKEN, Nishina Ctr, 2-1 Hirosawa, Wako, Saitama 3510198, Japan; [Huyuk, T.] Univ Valencia, Inst Fis Corpuscular, CSIC, E-46071 Valencia, Spain; [Lenzi, S. M.; Recchia, F.] Univ Padua, Dipartimento Fis & Astron, I-35131 Padua, Italy; [Lenzi, S. M.; Cortes, M. L.; Napoli, D.; Recchia, F.] INFN, Sez Padova, I-35131 Padua, Italy; [Poves, A.] Univ Autonoma Madrid, Dept Fis Teor, Madrid 28049, Spain; [Bentley, M. A.; Pereira-Lopez, X.; Uthayakumaar, S.; Wadsworth, R.] Univ York, Sch Phys Engn & Technol, York YO10 5DD, England; [Furumoto, T.] Yokohama Natl Univ, Coll Educ, Yokohama 2408501, Japan; [Imai, N.; Kitamura, N.] Univ Tokyo, Ctr Nucl Study, Bunkyo Ku, Tokyo 1130033, Japan; [Jungclaus, A.; Vaquero, V.] CSIC, Inst Estruct Mat, E-28006 Madrid, Spain; [Longfellow, B.] Michigan State Univ, Dept Phys & Astron, Cyclotron Lab, Natl Superconducting, E Lansing, MI 48824 USA; [Lozeva, R.] Univ Paris Saclay, IJCLab, IN2P3, CNRS, F-91405 Orsay, France; [Ruotsalainen, P.] Univ Jyvaskyla, Dept Phys, Accelerator Lab, FI-40014 Jyvaskyla, Finland; [Yajzey, R.] Jazan Univ, Coll Sci, Dept Phys Sci, Phys Div, POB 114, Jazan 45142, Saudi Arabia, Email: k.wimmer@gsi.de  
  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:001744071000001 Approved no  
  Is ISI yes International Collaboration yes  
  Call Number IFIC @ pastor @ Serial 7184  
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