Isospin symmetry investigation of the proton-unbound nucleus T = 3/2 55Cu

S. Pigliapoco; M. L. Cortés; F. Recchia; S. M. Lenzi; M. A. Bentley; P. Doornenbal; A. Jungclaus; K. Wimmer; L. Zago; D. Rudolph; F. Browne; T. Koiwai; H. Sakurai; T. Arici; A. Fernández; J. A. Tostevin; N. Imai; N. Kitamura; B. Longfellow; R. Lozeva; B. Mauss; D. R. Napoli; M. Niikura; J. Periera Lopez; P. Ruotsalainen; R. Taniuchi; S. Uthayakumaar; V. Vaquero; R. Wadsworth; R. Yajzey

doi:10.1016/j.nuclphysa.2025.123023

Isospin symmetry investigation of the proton-unbound nucleus T = 3/2 ⁵⁵Cu

S. Pigliapoco^*, M. L. Cortés, F. Recchia, S. M. Lenzi, M. A. Bentley, P. Doornenbal, A. Jungclaus, K. Wimmer, L. Zago, D. Rudolph, F. Browne, T. Koiwai, H. Sakurai, T. Arici, A. Fernández, J. A. Tostevin, N. Imai, N. Kitamura, B. Longfellow, R. LozevaB. Mauss, D. R. Napoli, M. Niikura, J. Periera Lopez, P. Ruotsalainen, R. Taniuchi, S. Uthayakumaar, V. Vaquero, R. Wadsworth, R. Yajzey

^*Corresponding author for this work

Physics

Research output: Contribution to journal › Article › peer-review

Abstract

This study reports the status of the first in-beam γ-ray spectroscopic study of excited states in the exotic neutron-deficient T_z=-3/2 nucleus ⁵⁵Cu. The nucleus was produced via knock-out reactions at the Radioactive Isotope Beam Factory, located at the RIKEN-Nishina Center. Several γ-ray transitions were detected using the DALI2⁺ γ-ray detector array. The comparison with isobaric analogue states in the mirror nucleus ⁵⁵Fe will provide valuable insights into isospin-non-conserving effects beyond nuclear stability. The proton occupation of the 1p_3/2 orbital is expected to play a significant effect on the orbital's charge radius due to the isovector monopole polarizability, which can be linked to the measured mirror energy differences.

Original language	English
Article number	123023
Number of pages	4
Journal	Nuclear Physics A
Volume	1056
Early online date	20 Feb 2025
DOIs	https://doi.org/10.1016/j.nuclphysa.2025.123023
Publication status	Published - 1 Apr 2025

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Publisher Copyright:
© 2025 The Authors

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10.1016/j.nuclphysa.2025.123023Licence: CC BY

Isospin symmetry investigation of the proton-unbound nucleus
© 2025 The Authors.
Final published version, 961 KBLicence: CC BY

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Pigliapoco, S., Cortés, M. L., Recchia, F., Lenzi, S. M., Bentley, M. A., Doornenbal, P., Jungclaus, A., Wimmer, K., Zago, L., Rudolph, D., Browne, F., Koiwai, T., Sakurai, H., Arici, T., Fernández, A., Tostevin, J. A., Imai, N., Kitamura, N., Longfellow, B., ... Yajzey, R. (2025). Isospin symmetry investigation of the proton-unbound nucleus T = 3/2 ⁵⁵Cu. Nuclear Physics A, 1056, Article 123023. https://doi.org/10.1016/j.nuclphysa.2025.123023

@article{9393411f059d46aca6d238ad88c4e19d,

title = "Isospin symmetry investigation of the proton-unbound nucleus T = 3/2 55Cu",

abstract = "This study reports the status of the first in-beam γ-ray spectroscopic study of excited states in the exotic neutron-deficient Tz=-3/2 nucleus 55Cu. The nucleus was produced via knock-out reactions at the Radioactive Isotope Beam Factory, located at the RIKEN-Nishina Center. Several γ-ray transitions were detected using the DALI2+ γ-ray detector array. The comparison with isobaric analogue states in the mirror nucleus 55Fe will provide valuable insights into isospin-non-conserving effects beyond nuclear stability. The proton occupation of the 1p3/2 orbital is expected to play a significant effect on the orbital's charge radius due to the isovector monopole polarizability, which can be linked to the measured mirror energy differences.",

author = "S. Pigliapoco and Cort{\'e}s, {M. L.} and F. Recchia and Lenzi, {S. M.} and Bentley, {M. A.} and P. Doornenbal and A. Jungclaus and K. Wimmer and L. Zago and D. Rudolph and F. Browne and T. Koiwai and H. Sakurai and T. Arici and A. Fern{\'a}ndez and Tostevin, {J. A.} and N. Imai and N. Kitamura and B. Longfellow and R. Lozeva and B. Mauss and Napoli, {D. R.} and M. Niikura and {Periera Lopez}, J. and P. Ruotsalainen and R. Taniuchi and S. Uthayakumaar and V. Vaquero and R. Wadsworth and R. Yajzey",

note = "Publisher Copyright: {\textcopyright} 2025 The Authors",

year = "2025",

month = apr,

day = "1",

doi = "10.1016/j.nuclphysa.2025.123023",

language = "English",

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Pigliapoco, S, Cortés, ML, Recchia, F, Lenzi, SM, Bentley, MA, Doornenbal, P, Jungclaus, A, Wimmer, K, Zago, L, Rudolph, D, Browne, F, Koiwai, T, Sakurai, H, Arici, T, Fernández, A, Tostevin, JA, Imai, N, Kitamura, N, Longfellow, B, Lozeva, R, Mauss, B, Napoli, DR, Niikura, M, Periera Lopez, J, Ruotsalainen, P, Taniuchi, R, Uthayakumaar, S, Vaquero, V, Wadsworth, R & Yajzey, R 2025, 'Isospin symmetry investigation of the proton-unbound nucleus T = 3/2 ⁵⁵Cu', Nuclear Physics A, vol. 1056, 123023. https://doi.org/10.1016/j.nuclphysa.2025.123023

TY - JOUR

T1 - Isospin symmetry investigation of the proton-unbound nucleus T = 3/2 55Cu

AU - Pigliapoco, S.

AU - Cortés, M. L.

AU - Recchia, F.

AU - Lenzi, S. M.

AU - Bentley, M. A.

AU - Doornenbal, P.

AU - Jungclaus, A.

AU - Wimmer, K.

AU - Zago, L.

AU - Rudolph, D.

AU - Browne, F.

AU - Koiwai, T.

AU - Sakurai, H.

AU - Arici, T.

AU - Fernández, A.

AU - Tostevin, J. A.

AU - Imai, N.

AU - Kitamura, N.

AU - Longfellow, B.

AU - Lozeva, R.

AU - Mauss, B.

AU - Napoli, D. R.

AU - Niikura, M.

AU - Periera Lopez, J.

AU - Ruotsalainen, P.

AU - Taniuchi, R.

AU - Uthayakumaar, S.

AU - Vaquero, V.

AU - Wadsworth, R.

AU - Yajzey, R.

PY - 2025/4/1

Y1 - 2025/4/1

N2 - This study reports the status of the first in-beam γ-ray spectroscopic study of excited states in the exotic neutron-deficient Tz=-3/2 nucleus 55Cu. The nucleus was produced via knock-out reactions at the Radioactive Isotope Beam Factory, located at the RIKEN-Nishina Center. Several γ-ray transitions were detected using the DALI2+ γ-ray detector array. The comparison with isobaric analogue states in the mirror nucleus 55Fe will provide valuable insights into isospin-non-conserving effects beyond nuclear stability. The proton occupation of the 1p3/2 orbital is expected to play a significant effect on the orbital's charge radius due to the isovector monopole polarizability, which can be linked to the measured mirror energy differences.

AB - This study reports the status of the first in-beam γ-ray spectroscopic study of excited states in the exotic neutron-deficient Tz=-3/2 nucleus 55Cu. The nucleus was produced via knock-out reactions at the Radioactive Isotope Beam Factory, located at the RIKEN-Nishina Center. Several γ-ray transitions were detected using the DALI2+ γ-ray detector array. The comparison with isobaric analogue states in the mirror nucleus 55Fe will provide valuable insights into isospin-non-conserving effects beyond nuclear stability. The proton occupation of the 1p3/2 orbital is expected to play a significant effect on the orbital's charge radius due to the isovector monopole polarizability, which can be linked to the measured mirror energy differences.

UR - http://www.scopus.com/inward/record.url?scp=85216734119&partnerID=8YFLogxK

U2 - 10.1016/j.nuclphysa.2025.123023

DO - 10.1016/j.nuclphysa.2025.123023

M3 - Article

AN - SCOPUS:85216734119

SN - 0375-9474

VL - 1056

JO - Nuclear Physics A

JF - Nuclear Physics A

M1 - 123023

ER -

Isospin symmetry investigation of the proton-unbound nucleus T = 3/2 ⁵⁵Cu

Abstract

Bibliographical note

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Nuclear Physics Consolidated Grant 2021-2024

Nuclear Physics Consolidated Grant

Cite this

Isospin symmetry investigation of the proton-unbound nucleus T = 3/2 55Cu

Abstract

Bibliographical note

Access to Document

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Projects

Nuclear Physics Consolidated Grant 2021-2024

Nuclear Physics Consolidated Grant

Cite this

Isospin symmetry investigation of the proton-unbound nucleus T = 3/2 ⁵⁵Cu