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An innovative Superconducting Recoil Separator for HIE-ISOLDE
/ Martel, I (Huelva U.) ; Acosta, L (Mexico U.) ; Aguado, J L (Huelva U.) ; Assie, M (IJCLab, Orsay) ; Al-Aqeel, M A M (Liverpool U. ; Bucharest, IFIN-HH) ; Ballarino, A (CERN) ; Barna, D (Wigner RCP, Budapest) ; Berjillos, R (Huelva U.) ; Bonora, M (CERN) ; Bontoiu, C (Liverpool U.) et al.
The ISOLDE Scientific Infrastructure at CERN offers a unique range of post-accelerated radioactive beams. The scientific program can be improved with the “Isolde Superconducting Recoil Separator” (ISRS), an innovative spectrometer able to deliver unprecedented (A, Z) resolution. [...]
2023 - 4 p.
- Published in : Nucl. Instrum. Methods Phys. Res., B 541 (2023) 176-179
Fulltext: PDF;
In : 19th International Conference on Electromagnetic Isotope Separators and Related Topics (EMIS 2022), Daejeon, Korea, 3 - 7 Oct 2022, pp.176-179
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Search for 22Na in novae supported by a novel method for measuring femtosecond nuclear lifetimes
/ Fougères, Chloé (GANIL ; Argonne, PHY) ; de Oliveira Santos, François (GANIL) ; José, Jordi (Barcelona U. ; Barcelona, IEEC) ; Michelagnoli, Caterina (Laue-Langevin Inst.) ; Clément, Emmanuel (GANIL) ; Kim, Yung Hee (GANIL ; IBS, Daejeon, CENS) ; Lemasson, Antoine (GANIL) ; Guimarães, Valdir (Sao Paulo U.) ; Barrientos, Diego (CERN) ; Bemmerer, Daniel (HZDR, Dresden) et al.
Classical novae are thermonuclear explosions in stellar binary systems, and important sources of 26Al and 22Na. While gamma rays from the decay of the former radioisotope have been observed throughout the Galaxy, 22Na remains untraceable. [...]
arXiv:2212.06302.-
2023-09-05 - 18 p.
- Published in : Nature Commun. 14 (2023) 4536
Fulltext: document - PDF; 2212.06302 - PDF;
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First β-decay spectroscopy of 135In and new β-decay branches of 134In
/ IDS Collaboration
The β decay of the neutron-rich 134In and 135In was investigated experimentally in order to provide new insights into the nuclear structure of the tin isotopes with magic proton number Z=50 above the N=82 shell. The β-delayed γ-ray spectroscopy measurement was performed at the ISOLDE facility at CERN, where indium isotopes were selectively laser-ionized and on-line mass separated. [...]
arXiv:2110.13988.-
2021-10-26 - 19 p.
- Published in : Phys. Rev. C 104 (2021) 044328
Fulltext: 2110.13988 - PDF; PhysRevC.104.044328 - PDF;
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Low-spin states in 80Ge populated in the β decay of the 80Ga 3− isomer
/ Sekal, S (Algiers U. Sci. Tech. ; CERN) ; Fraile, L M (Madrid U.) ; Lică, R (CERN ; Bucharest, IFIN-HH) ; Borge, M J G (Madrid, Inst. Estructura Materia) ; Walters, W B (Maryland U., Dept. Chem.) ; Aprahamian, A (Notre Dame U.) ; Benchouk, C (Algiers U. Sci. Tech.) ; Bernards, C (Yale U. (main) ; Cologne U.) ; Briz, J A (Madrid, Inst. Estructura Materia) ; Bucher, B (Idaho Natl. Lab.) et al.
The structure of
80Ge has been investigated at the ISOLDE facility at CERN. A previous study reported for the first time a low-lying 0+2 intruder state at 639 keV, based on the coincidence with a previously unobserved 1764-keV γ ray, and suggested it as evidence for shape coexistence in 80Ge. [...]
2021 - 12 p.
- Published in : Phys. Rev. C 104 (2021) 024317
Fulltext: PDF;
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Detailed spectroscopy of doubly magic 132Sn
/ IS610 Collaboration
The structure of the doubly magic 13250Sn82 has been investigated at the ISOLDE facility at CERN, populated both by the β− decay of 132In and β−-delayed neutron emission of 133In. The level scheme of 132Sn is greatly expanded with the addition of 68 γ transitions and 17 levels observed for the first time in the β decay. [...]
arXiv:2007.03029.-
2020-07-30 - 18 p.
- Published in : Physical Review C 102 (2020) 014328
Fulltext: PDF; Fulltext from publisher: PDF;
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Testing ab initio nuclear structure in neutron-rich nuclei: lifetime measurements of second 2+ states in 16C and 20O
/ Ciemala, M. (Cracow, INP) ; Ziliani, S. (Milan U. ; INFN, Milan) ; Crespi, F.C.L. (Milan U. ; INFN, Milan) ; Leoni, S. (Milan U. ; INFN, Milan) ; Fornal, B. (Cracow, INP) ; Maj, A. (Cracow, INP) ; Bednarczyk, P. (Cracow, INP) ; Benzoni, G. (INFN, Milan) ; Bracco, A. (Milan U. ; INFN, Milan) ; Boiano, C. (INFN, Milan) et al.
To test the predictive power of ab initio nuclear structure theory, the lifetime of the second 2+ state in neutron-rich 20O, tau(2+_2 ) = 150(+80-30) fs, and an estimate for the lifetime of the second 2+ state in 16C have been obtained, for the first time. The results were achieved via a novel Monte Carlo technique that allowed us to measure nuclear state lifetimes in the tens-to-hundreds femtoseconds range, by analyzing the Doppler-shifted gamma-transition line shapes of products of low-energy transfer and deep-inelastic processes in the reaction 18O (7.0 MeV/u) + 181Ta. [...]
arXiv:2002.04814.-
2020-02-28 - 7 p.
- Published in : Phys. Rev. C 101 (2020) 021303
Fulltext: PDF; Published fulltext: PhysRevC.101.021303 - PDF; 0144fdb9ec521f98f02c56efc9fa40a9 - PDF;
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Search for the 73Ga ground-state doublet splitting in the β decay of 73Zn
/ Vedia, V (UCM, Madrid, Dept. Phys.) ; Paziy, V (UCM, Madrid, Dept. Phys.) ; Fraile, L M (UCM, Madrid, Dept. Phys.) ; Mach, H (UCM, Madrid, Dept. Phys. ; NCBJ, Swierk) ; Walters, W B (Maryland U., Dept. Chem.) ; Aprahamian, A (Notre Dame U.) ; Bernards, C (Cologne U. ; Yale U. (main)) ; Briz, J A (Madrid, Inst. Estructura Materia) ; Bucher, B (Notre Dame U. ; LLNL, Livermore) ; Chiara, C J (Maryland U., Dept. Chem. ; Argonne, PHY) et al.
The existence of two close-lying nuclear states in 73Ga has recently been experimentally determined: a 1/2− spin-parity for the ground state was measured in a laser spectroscopy experiment, while a Jπ=3/2− level was observed in transfer reactions. This scenario is supported by Coulomb excitation studies, which set a limit for the energy splitting of 0.8 keV. [...]
2017 - 13 p.
- Published in : Phys. Rev. C 96 (2017) 034311
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Normal and intruder configurations in 34Si populated in the β− decay of 34Mg and 34Al
/ IDS Collaboration
The structure of 34Si was studied through γ spectroscopy separately in the β− decays of 34Mg and 34Al at the ISOLDE facility of CERN. Different configurations in 34Si were populated independently from the two recently identified β-decaying states in 34Al having spin-parity assignments Jπ=4− dominated by the normal configuration π(d5/2)−1⊗ν(f7/2) and Jπ=1+ by the intruder configuration π(d5/2)−1⊗ν(d3/2)−1(f7/2)2. [...]
arXiv:1908.11626.-
2019-09-12 - 11 p.
- Published in : Phys. Rev. C 100 (2019) 034306
Fulltext: PDF;
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Transfer reactions induced with 56Ni: shell gaps and np pairing
/ Georgiadou, A (Orsay, IPN ; U. Paris-Sud 11, Dept. Phys., Orsay ; Paris, IN2P3) ; Assié, M (Orsay, IPN ; Paris, IN2P3) ; Blumenfeld, Y ; Crom, B Le ; Guillot, J ; Flavigny, F ; Achouri, L ; Aouadi, M ; Bastin, B ; Benitez, A et al.
The structure of the unstable doubly magic nucleus 56Ni has been investigated by measuring one-and two-nucleon transfer reactions. The radioactive beam of 56Ni was produced at GANIL-Caen, France at 30 MeV/u by means of the LISE spectrometer. [...]
Geneva : CERN, 2019 - 6 p.
- Published in : CERN Proc. (2019) , pp. 95-100
Fulltext: PDF;
In : 15th International Conference on Nuclear Reaction Mechanisms, Varenna, Italy, 11 - 15 Jun 2018, pp.95-100
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