Mirror energy differences above the 0f7/2 shell: First γ-ray spectroscopy of the Tz = −2 nucleus 56Zn

Mirror energy differences above the 0f7/2 shell: First γ-ray spectroscopy of the Tz = −2 nucleus 56Zn

Excited states in 56Zn were populated following one-neutron removal from a 57Zn beam impinging on a Be target at intermediate energies in an experiment conducted at the Radioactive Isotope Beam Factory at RIKEN. Three γ rays were observed and tentatively assigned to the 6+→4+→2+→0+ yrast sequence. T...

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Autores principales: A. Fernández, A. Jungclaus, P. Doornenbal, M.A. Bentley, S.M. Lenzi, D. Rudolph, F. Browne, M.L. Cortés, T. Koiwai, R. Taniuchi, V. Vaquero, K. Wimmer, T. Arici, N. Imai, N. Kitamura, B. Longfellow, R. Lozeva, B. Mauss, D.R. Napoli, M. Niikura, X. Pereira-Lopez, S. Pigliapoco, A. Poves, F. Recchia, P. Ruotsalainen, H. Sakurai, S. Uthayakumaar, R. Wadsworth, R. Yajzey
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Lenguaje:EN
Publicado: Elsevier 2021
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Physics
QC1-999
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spelling oai:doaj.org-article:f3f24652e2ec43cfbfde50efe285d8392021-12-04T04:32:45ZMirror energy differences above the 0f7/2 shell: First γ-ray spectroscopy of the Tz = −2 nucleus 56Zn0370-269310.1016/j.physletb.2021.136784https://doaj.org/article/f3f24652e2ec43cfbfde50efe285d8392021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0370269321007243https://doaj.org/toc/0370-2693Excited states in 56Zn were populated following one-neutron removal from a 57Zn beam impinging on a Be target at intermediate energies in an experiment conducted at the Radioactive Isotope Beam Factory at RIKEN. Three γ rays were observed and tentatively assigned to the 6+→4+→2+→0+ yrast sequence. This turns 56Zn into the heaviest Tz=−2 nucleus in which excited states are known. The excitation-energy differences between these levels and the isobaric analogue states in the Tz=+2 mirror partner, 56Fe, are compared with large-scale shell-model calculations considering the full pf valence space and various isospin-breaking contributions. This comparison, together with an analysis of the mirror energy differences in the A=58, Tz=±1 pair 58Zn and 58Ni, provides valuable information with respect to the size of the monopole radial and the isovector multipole isospin-breaking terms in the region above doubly-magic 56Ni.A. FernándezA. JungclausP. DoornenbalM.A. BentleyS.M. LenziD. RudolphF. BrowneM.L. CortésT. KoiwaiR. TaniuchiV. VaqueroK. WimmerT. AriciN. ImaiN. KitamuraB. LongfellowR. LozevaB. MaussD.R. NapoliM. NiikuraX. Pereira-LopezS. PigliapocoA. PovesF. RecchiaP. RuotsalainenH. SakuraiS. UthayakumaarR. WadsworthR. YajzeyElsevierarticlePhysicsQC1-999ENPhysics Letters B, Vol 823, Iss , Pp 136784- (2021)
institution DOAJ
collection DOAJ
language EN
topic Physics
QC1-999
spellingShingle Physics
QC1-999
A. Fernández
A. Jungclaus
P. Doornenbal
M.A. Bentley
S.M. Lenzi
D. Rudolph
F. Browne
M.L. Cortés
T. Koiwai
R. Taniuchi
V. Vaquero
K. Wimmer
T. Arici
N. Imai
N. Kitamura
B. Longfellow
R. Lozeva
B. Mauss
D.R. Napoli
M. Niikura
X. Pereira-Lopez
S. Pigliapoco
A. Poves
F. Recchia
P. Ruotsalainen
H. Sakurai
S. Uthayakumaar
R. Wadsworth
R. Yajzey
Mirror energy differences above the 0f7/2 shell: First γ-ray spectroscopy of the Tz = −2 nucleus 56Zn
description Excited states in 56Zn were populated following one-neutron removal from a 57Zn beam impinging on a Be target at intermediate energies in an experiment conducted at the Radioactive Isotope Beam Factory at RIKEN. Three γ rays were observed and tentatively assigned to the 6+→4+→2+→0+ yrast sequence. This turns 56Zn into the heaviest Tz=−2 nucleus in which excited states are known. The excitation-energy differences between these levels and the isobaric analogue states in the Tz=+2 mirror partner, 56Fe, are compared with large-scale shell-model calculations considering the full pf valence space and various isospin-breaking contributions. This comparison, together with an analysis of the mirror energy differences in the A=58, Tz=±1 pair 58Zn and 58Ni, provides valuable information with respect to the size of the monopole radial and the isovector multipole isospin-breaking terms in the region above doubly-magic 56Ni.
format article
author A. Fernández
A. Jungclaus
P. Doornenbal
M.A. Bentley
S.M. Lenzi
D. Rudolph
F. Browne
M.L. Cortés
T. Koiwai
R. Taniuchi
V. Vaquero
K. Wimmer
T. Arici
N. Imai
N. Kitamura
B. Longfellow
R. Lozeva
B. Mauss
D.R. Napoli
M. Niikura
X. Pereira-Lopez
S. Pigliapoco
A. Poves
F. Recchia
P. Ruotsalainen
H. Sakurai
S. Uthayakumaar
R. Wadsworth
R. Yajzey
author_facet A. Fernández
A. Jungclaus
P. Doornenbal
M.A. Bentley
S.M. Lenzi
D. Rudolph
F. Browne
M.L. Cortés
T. Koiwai
R. Taniuchi
V. Vaquero
K. Wimmer
T. Arici
N. Imai
N. Kitamura
B. Longfellow
R. Lozeva
B. Mauss
D.R. Napoli
M. Niikura
X. Pereira-Lopez
S. Pigliapoco
A. Poves
F. Recchia
P. Ruotsalainen
H. Sakurai
S. Uthayakumaar
R. Wadsworth
R. Yajzey
author_sort A. Fernández
title Mirror energy differences above the 0f7/2 shell: First γ-ray spectroscopy of the Tz = −2 nucleus 56Zn
title_short Mirror energy differences above the 0f7/2 shell: First γ-ray spectroscopy of the Tz = −2 nucleus 56Zn
title_full Mirror energy differences above the 0f7/2 shell: First γ-ray spectroscopy of the Tz = −2 nucleus 56Zn
title_fullStr Mirror energy differences above the 0f7/2 shell: First γ-ray spectroscopy of the Tz = −2 nucleus 56Zn
title_full_unstemmed Mirror energy differences above the 0f7/2 shell: First γ-ray spectroscopy of the Tz = −2 nucleus 56Zn
title_sort mirror energy differences above the 0f7/2 shell: first γ-ray spectroscopy of the tz = −2 nucleus 56zn
publisher Elsevier
publishDate 2021
url https://doaj.org/article/f3f24652e2ec43cfbfde50efe285d839
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