Measurement of the Isolated Nuclear Two-Photon Decay in ⁷²Ge

D. Freire-Fernández; W. Korten; R. J. Chen; S. Litvinov; Yu. A. Litvinov; M. S. Sanjari; H. Weick; F. C. Akinci; H. M. Albers; M. Armstrong; A. Banerjee; K. Blaum; C. Brandau; B. A. Brown; C. G. Bruno; J. J. Carroll; X. Chen; M. L. Cortes; I. Dillmann; S. F. Dellmann; C. J. Chiara; D. Dmytriiev; O. Forstner; H. Geissel; J. Glorius; A. Görgen; M. Górska; C. J. Griffin; A. Gumberidze; S. Harayama; R. Hess; N. Hubbard; K. E. Ide; Ph. R. John; R. Joseph; B. Jurado; D. Kalaydjieva; Kanika; F. G. Kondev; P. Koseoglou; G. Kosir; Ch Kozhuharov; I. Kulikov; G. Leckenby; B. Lorenz; J. Marsh; A. Mistry; A. Ozawa; N. Pietralla; Zs Podolyák; M. Polettini; M. Sguazzin; R. S. Sidhu; M. Steck; Th Stöhlker; J. A. Swartz; J. Vesic; P. M. Walker; T. Yamaguchi; R. Zidarova

doi:10.1103/PhysRevLett.133.022502

Back

Measurement of the Isolated Nuclear Two-Photon Decay in ⁷²Ge

Journal article

Open access

Peer reviewed

Measurement of the Isolated Nuclear Two-Photon Decay in ⁷²Ge

D. Freire-Fernández, W. Korten, R. J. Chen, S. Litvinov, Yu. A. Litvinov, M. S. Sanjari, H. Weick, F. C. Akinci, H. M. Albers, M. Armstrong, …

Physical Review Letters, Vol.133(2), pp.022502-1-022502-7

12/05/2024

DOI: https://doi.org/10.1103/PhysRevLett.133.022502

Abstract

Collective levels

Electromagnetic transitions

Giant resonances

Isomer decays

Lifetimes & widths

Neutron skin thickness

Nuclear decay

Nuclear many-body theory

Nuclear shapes and moments

Nuclear structure & decays

Nuclear transition rates

Shell model

59 ≤ A ≤ 89

Nuclear data analysis & compilation

Spectrometers & spectroscopic techniques

Nuclear Astrophysics

Nuclear Physics

The nuclear two-photon or double-gamma (2γ) decay is a second-order electromagnetic process whereby a nucleus in an excited state emits two gamma rays simultaneously. To be able to directly measure the 2γ decay rate in the low-energy regime below the electron-positron pair-creation threshold, we combined the isochronous mode of a storage ring with Schottky resonant cavities. The newly developed technique can be applied to isomers with excitation energies down to ∼ 100 keV and half-lives as short as ∼ 10 ms . The half-life for the 2γ decay of the first-excited 0⁺ state in bare ⁷²Ge ions was determined to be 23.9(6) ms, which strongly deviates from expectations.

Files and links (2)

pdf

Measurement of the Isolated Nuclear Two-Photon Decay - AAM5.04 MBDownload View

Author's Accepted Manuscript Open Access

url

https://doi.org/10.1103/PhysRevLett.133.022502View

Published (Version of record) Open

Metrics

1 File views/ downloads

6 Record Views

See more details

Details

Title: Measurement of the Isolated Nuclear Two-Photon Decay in ⁷²Ge
Creators: D. Freire-Fernández
W. Korten - CEA Saclay
R. J. Chen
S. Litvinov
Yu. A. Litvinov - GSI Helmholtz Centre for Heavy Ion Research
M. S. Sanjari
H. Weick - Saha Institute of Nuclear Physics
F. C. Akinci
H. M. Albers - Argonne National Laboratory
M. Armstrong - University of Cologne
A. Banerjee - GSI Helmholtz Centre for Heavy Ion Research
K. Blaum - Heidelberg
C. Brandau
B. A. Brown - Michigan State University
C. G. Bruno - University of Edinburgh
J. J. Carroll
X. Chen
M. L. Cortes - GSI Helmholtz Centre for Heavy Ion Research
I. Dillmann - TRIUMF
S. F. Dellmann
C. J. Chiara
D. Dmytriiev
O. Forstner
H. Geissel
J. Glorius
A. Görgen
M. Górska - GSI Helmholtz Centre for Heavy Ion Research
C. J. Griffin
A. Gumberidze
S. Harayama
R. Hess
N. Hubbard - GSI Helmholtz Centre for Heavy Ion Research
K. E. Ide
Ph. R. John
R. Joseph
B. Jurado
D. Kalaydjieva - CEA Saclay
Kanika
F. G. Kondev - Argonne National Laboratory
P. Koseoglou - GSI Helmholtz Centre for Heavy Ion Research
G. Kosir - University of Jyväskylä
Ch Kozhuharov
I. Kulikov
G. Leckenby
B. Lorenz
J. Marsh
A. Mistry - GSI Helmholtz Centre for Heavy Ion Research
A. Ozawa - University of Tsukuba
N. Pietralla - Stony Brook University
Zs Podolyák - University of Surrey, School of Maths and Physics
M. Polettini - University of Milan
M. Sguazzin
R. S. Sidhu
M. Steck
Th Stöhlker
J. A. Swartz - Laboratoire de Physique des deux infinis Bordeaux
J. Vesic - University of Ljubljana
P. M. Walker - University of Surrey, School of Maths and Physics
T. Yamaguchi - Saitama University
R. Zidarova - European Organization for Nuclear Research
Publication Details: Physical Review Letters, Vol.133(2), pp.022502-1-022502-7
Publisher: American Physical Society
Date published: 12/05/2024
Date accepted: 14/05/2024
Grants: Science and Technology Facilities Council (United Kingdom, Swindon) - STFC
PHY-2110365, National Science Foundation (United States, Arlington) - NSF
Research Cluster ELEMENTS, 500/10.006, Hesse (Germany, Paderborn)
NuSTAR.DA 05P19RDFN1, Federal Ministry of Education and Research (Germany, Bonn) - BMBF
T23KK0055, Japan Society for the Promotion of Science (Japan, Tokyo) - JSPS
SAPIN-2019-00030, Natural Sciences and Engineering Research Council (Canada, Ottawa) - NSERC
DE-AC02-06CH11357, Office of Nuclear Physics (United States, Washington) - NP
P1-0102, The Slovenian Research and Innovation Agency (Slovenia, Ljubljana) - ARIS
I0-E005, The Slovenian Research and Innovation Agency (Slovenia, Ljubljana) - ARIS
ERC-AdG NECTAR, 884715, European Research Council (Belgium, Brussels) - ERC
ERC-CoG ASTRUm, 68284, European Research Council (Belgium, Brussels) - ERC
Grant note: The authors thank the GSI accelerator team for providing excellent technical support. The results presented here are based on the experiment E143, which was performed at the ESR at the GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt (Germany) in the context of FAIR Phase-0. The authors also thank G. Hudson-Chang for proofreading. B. A. B. acknowledges the support from the NSF Grant No. PHY-2110365. P. K. acknowledges the support from BMBF under Grant No. NuSTAR.DA 05P19RDFN1. T. Y. was partly supported by JSPS KAKENHI Grant No. T23KK0055. I. D., C. G., and G. T. L. ackowledge funding by the Natural Sciences and Engineering Research Council of Canada (NSERC) (Grant No. SAPIN-2019-00030). Work at A. N. L. is supported by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics, under Contract No. DE-AC02-06CH11357. This work was supported by the Slovenian Research and Innovation Agency under Grants No. I0-E005 and No. P1-0102, by the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (ERC-AdG NECTAR, Grant Agreement No. 884715; ERC-CoG ASTRUm, Grant Agreement No. 68284), the State of Hesse (Germany) within the Research Cluster ELEMENTS (Project ID 500/10.006), and by the STFC (UK)
Identifiers: 99905266302346
Copyright: Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Open access publication funded by the Max Planck Society.
Academic Unit: School of Maths and Physics
Language: English
Resource Type: Journal article

Measurement of the Isolated Nuclear Two-Photon Decay in ⁷²Ge

Abstract

Files and links (2)

Metrics

Details

Usage Policy