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High-Precision Mass Measurements of Neutron Deficient Silver Isotopes Probe the Robustness of the <math display="inline"><mrow><mi>N</mi><mo>=</mo><mn>50</mn></mrow></math> Shell Closure
/ Ge, Zhuang (Jyvaskyla U.) ; Reponen, Mikael (Jyvaskyla U.) ; Eronen, Tommi (Jyvaskyla U.) ; Hu, Baishan (TRIUMF ; ORNL, Oak Ridge (main) ; Oak Ridge) ; Kortelainen, Markus (Jyvaskyla U.) ; Kankainen, Anu (Jyvaskyla U.) ; Moore, Iain (Jyvaskyla U.) ; Nesterenko, Dmitrii (Jyvaskyla U.) ; Yuan, Cenxi (SYSU, Guangzhou) ; Beliuskina, Olga (Jyvaskyla U.) et al.
High-precision mass measurements of exotic $^{95-97}$Ag isotopes close to the $N = Z$ line have been conducted with the JYFLTRAP double Penning trap mass spectrometer, with the silver ions produced using the recently commissioned inductively-heated hot cavity catcher laser ion source at the Ion Guide Isotope Separator On-Line facility. The atomic mass of $^{95}$Ag was directly determined for the first time. [...]
arXiv:2401.07976.-
2024-09-26 - 9 p.
- Published in : Phys. Rev. Lett. 133 (2024) 132503
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Detector R&D Collaboration for Calorimeters
/ Santoro, R et al.
Approved: 06 December 2023.-
Status: Preparation
Experiment: DRD6
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Measurements of binding energies and electromagnetic moments of silver isotopes – A complementary benchmark of density functional theory
/ de Groote, R P (Jyvaskyla U. ; Leuven U.) ; Nesterenko, D A (Jyvaskyla U.) ; Kankainen, A (Jyvaskyla U.) ; Bissell, M L (Manchester U.) ; Beliuskina, O (Jyvaskyla U.) ; Bonnard, J (York U., England ; IP2I, Lyon) ; Campbell, P (Manchester U.) ; Canete, L (Jyvaskyla U.) ; Cheal, B (Liverpool U.) ; Delafosse, C (Jyvaskyla U.) et al.
We report on a set of high-precision measurements of nuclear binding and excitation energies, as well as nuclear spins, magnetic dipole and electric quadrupole moments of neutron-rich silver isotopes, 113−123Ag. The measurements were performed using the JYFLTRAP mass spectrometer and the collinear laser spectroscopy beamline at the Ion Guide Isotope Separator On-Line (IGISOL) facility. [...]
2023 - 6 p.
- Published in : Phys. Lett. B 848 (2024) 138352
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Search for $^{22}$Na 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 $^{26}$Al and $^{22}$Na. While gamma rays from the decay of the former radioisotope have been observed throughout the Galaxy, $^{22}$Na 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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Evidence of a sudden increase in the nuclear size of proton-rich silver-96
/ Reponen, M (Jyvaskyla U.) ; de Groote, R P (Jyvaskyla U.) ; Al Ayoubi, L (Jyvaskyla U. ; IJCLab, Orsay) ; Beliuskina, O (Jyvaskyla U.) ; Bissell, M L (Manchester U.) ; Campbell, P (Manchester U.) ; Cañete, L (Surrey U.) ; Cheal, B (Liverpool U.) ; Chrysalidis, K (CERN) ; Delafosse, C (Jyvaskyla U. ; IJCLab, Orsay) et al.
Understanding the evolution of the nuclear charge radius is one of the long-standing challenges for nuclear theory. Recently, density functional theory calculations utilizing Fayans functionals have successfully reproduced the charge radii of a variety of exotic isotopes. [...]
2021 - 8 p.
- Published in : Nature Commun. 12 (2021) 4596
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Spectroscopy of Neutron Induced Reactions with the $\nu $-ball Spectrometer
/ Jovančević, N (Orsay, IPN ; U. Paris-Saclay) ; Lebois, M (Orsay, IPN ; U. Paris-Saclay) ; Wilson, J N (Orsay, IPN ; U. Paris-Saclay) ; Thisse, D (Orsay, IPN ; U. Paris-Saclay) ; Qi, L (Orsay, IPN ; U. Paris-Saclay) ; Matea, I (Orsay, IPN ; U. Paris-Saclay) ; Ibrahim, F (Orsay, IPN ; U. Paris-Saclay) ; Verney, D (Orsay, IPN ; U. Paris-Saclay) ; Babo, M (Orsay, IPN ; U. Paris-Saclay) ; Delafosse, C (Orsay, IPN ; U. Paris-Saclay) et al.
The $\nu$-ball is a high-efficiency hybrid spectrometer which consists of both germanium (Ge) detectors and associated anti-Compton BGO shields, coupled to lanthanum bromide (LaBr$_3$) detectors. The hybrid configuration provides a combination of both excellent energy and timing resolutions. [...]
Acta Physica Polonica B Editorial Office, 2019 - 8 p.
- Published in : Acta Phys. Pol. B 50 (2019) 297
In : Zakopane Conference on Nuclear Physics : Extremes of the Nuclear Landscape, Zakopane, Poland, 26 Aug - 2 Sep 2018, pp.297
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7.
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Pseudospin Symmetry and Microscopic Origin of Shape Coexistence in the $^{78}$Ni Region: A Hint from Lifetime Measurements
/ Delafosse, C (Orsay, IPN) ; Verney, D (Orsay, IPN) ; Marević, P (Orsay, IPN ; CEA DAM) ; Gottardo, A (Orsay, IPN) ; Michelagnoli, C (GANIL) ; Lemasson, A (GANIL) ; Goasduff, A (INFN, Legnaro) ; Ljungvall, J (CSNSM, Orsay) ; Clément, E (GANIL) ; Korichi, A (CSNSM, Orsay) et al.
Lifetime measurements of excited states of the light $N=52$ isotones $^{88}$Kr, $^{86}$Se, and $^{84}$Ge have been performed, using the recoil distance Doppler shift method and VAMOS and AGATA spectrometers for particle identification and gamma spectroscopy, respectively. The reduced electric quadrupole transition probabilities $B(E2;2^+ \rightarrow 0^+)$ and $B(E2;4^+ \rightarrow 2^+)$ were obtained for the first time for the hard-to-reach $^{84}$Ge. [...]
2018 - 7 p.
- Published in : Phys. Rev. Lett. 121 (2018) 192502
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8.
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$_{36}^{96}$Kr$_{60}$–low-$Z$ boundary of the island of deformation at $N=60$
/ Dudouet, J (Lyon, IPN) ; Lemasson, A (GANIL) ; Duchêne, G (Strasbourg, IPHC) ; Rejmund, M (GANIL) ; Clément, E (GANIL) ; Michelagnoli, C (GANIL) ; Didierjean, F (Strasbourg, IPHC) ; Korichi, A (CSNSM, Orsay ; GANIL) ; Maquart, G (Lyon, IPN) ; Stezowski, O (Lyon, IPN) et al.
Prompt γ-ray spectroscopy of the neutron-rich 96Kr, produced in transfer- and fusion-induced fission reactions, has been performed using the combination of the Advanced Gamma Tracking Array and the VAMOSþþspectrometer. A second excited state, assigned to Jπ ¼ 4þ, is observed for the first time, and a previously reported level energy of the first 2þ excited state is confirmed. [...]
2017 - 6 p.
- Published in : Phys. Rev. Lett. 118 (2017) 162501
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