Isospin symmetry in the T = 1, A = 62 triplet

Wimmer, K.; Ruotsalainen, P.; Lenzi, S.M.; Poves, A.; Hüyük, T.; Browne, F.; Doornenbal, P.; Koiwai, T.; Arici, T.; Auranen, K.; Bentley, M.A.; Cortés, M.L.; Delafosse, C.; Eronen, T.; Ge, Z.; Grahn, T.; Greenlees, P.T.; Illana, A.; Imai, N.; Joukainen, H.; Julin, R.; Jungclaus, A.; Jutila, H.; Kankainen, A.; Kitamura, N.; Longfellow, B.; Louko, J.; Lozeva, R.; Luoma, M.; Mauss, B.; Napoli, D.R.; Niikura, M.; Ojala, J.; Pakarinen, J.; Pereira-Lopez, X.; Rahkila, P.; Recchia, F.; Sandzelius, M.; Sarén, J.; Taniuchi, R.; Tann, H.; Uthayakumaar, S.; Uusitalo, J.; Vaquero, V.; Wadsworth, R.; Zimba, G.; Yajzey, R.

doi:10.1016/j.physletb.2023.138249

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Wimmer, K., Ruotsalainen, P., Lenzi, S.M., Poves, A., Hüyük, T., Browne, F., Doornenbal, P., Koiwai, T., Arici, T., Auranen, K., Bentley, M.A., Cortés, M.L., Delafosse, C., Eronen, T., Ge, Z., Grahn, T., Greenlees, P.T., Illana, A., Imai, N., . . . Yajzey, R. (2023). Isospin symmetry in the T = 1, A = 62 triplet. Physics Letters B, 847, Article 138249. https://doi.org/10.1016/j.physletb.2023.138249

Julkaistu sarjassa

Physics Letters B

Tekijät

Wimmer, K. |

Ruotsalainen, P. |

Lenzi, S.M. |

Poves, A. |

Hüyük, T. |

Browne, F. |

Doornenbal, P. |

Koiwai, T. |

Arici, T. |

Auranen, K. |

Bentley, M.A. |

Cortés, M.L. |

Delafosse, C. |

Eronen, T. |

Ge, Z. |

Grahn, T. |

Greenlees, P.T. |

Illana, A. |

Imai, N. |

Joukainen, H. |

Julin, R. |

Jungclaus, A. |

Jutila, H. |

Kankainen, A. |

Kitamura, N. |

Longfellow, B. |

Louko, J. |

Lozeva, R. |

Luoma, M. |

Mauss, B. |

Napoli, D.R. |

Niikura, M. |

Ojala, J. |

Pakarinen, J. |

Pereira-Lopez, X. |

Rahkila, P. |

Recchia, F. |

Sandzelius, M. |

Sarén, J. |

Taniuchi, R. |

Tann, H. |

Uthayakumaar, S. |

Uusitalo, J. |

Vaquero, V. |

Wadsworth, R. |

Zimba, G. |

Yajzey, R.

Päivämäärä

2023

Oppiaine

Kiihdytinlaboratorio Accelerator Laboratory

Tekijänoikeudet

Excited states in the Tz = 0, −1 nuclei 62Ga and 62Ge were populated in direct reactions of relativistic radioactive ion beams at the RIBF. Coincident γ rays were measured with the DALI2+ array and uniquely assigned to the A = 62 isobars. In addition, 62Ge was also studied independently at JYFL-ACCLAB using the 24Mg(40Ca,2n) 62Ge fusion-evaporation reaction. The first excited T = 1, Jπ = 2+ states in 62Ga and 62Ge were identified at 979(1) and 965(1) keV, respectively, resolving discrepant interpretations in the literature. States beyond the first 2 + state in 62Ge were also identified for the first time in the present work. The results are compared with shell-model calculations in the f p model space. Mirror and triplet energy differences are analyzed in terms of individual charge-symmetry and charge-independence breaking contributions. The MED results confirm the shrinkage of the p-orbits’ radii when they are occupied by at least one nucleon on average.

Julkaisija

Elsevier

ISSN Hae Julkaisufoorumista

0370-2693

Lisätietoja rahoituksesta

K. W. acknowledges the support from the Spanish Ministerio de Ciencia, Innovación y Universidades grant RYC2017-22007 and the European Research Council through the ERC Grant No. 101001561-LISA. A. P. is supported in part by grants CEX2020-001007-S funded by MCIN/AEI (Spain) /10.13039/501100011033 and PID2021-127890NBI00. The work is further supported by the UK STFC under Grants Nos. ST/L005727/1, ... showmore

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