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Direct proton transfer on $^{46}$Ar supports the presence of a charge density bubble linked to a novel nuclear structure below $^{48}$Ca
/ Brugnara, Daniele (INFN, Padua ; INFN, Legnaro) ; Gottardo, Andrea (INFN, Legnaro) ; Assiè, Marlene (IJCLab, Orsay) ; Barbieri, Carlo (Milan U. ; INFN, Milan) ; Mengoni, Daniele (INFN, Padua) ; Beaumel, Didier (IJCLab, Orsay) ; Brolli, Stefano (Milan U. ; INFN, Milan) ; Bottoni, Simone (Milan U. ; INFN, Milan) ; Clement, Emmanuel (GANIL) ; Colò, Gianluca (Milan U. ; INFN, Milan) et al.
The $^{46}$Ar($^3$He,d)$^{47}$K reaction was performed in inverse kinematics using a radioactive $^{46}$Ar beam produced by the SPIRAL1 facility at GANIL and a cryogenic $^{3}$He target. [...]
arXiv:2506.23228.
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16.
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Spectroscopic study of Mo97, Mo99, and Mo101
/ Kumar, V (West Scotland U. ; SUPA, UK) ; Chapman, R (West Scotland U. ; SUPA, UK) ; Ollier, J (West Scotland U. ; SUPA, UK) ; Orlandi, R (JAERI, Tokai) ; Smith, J F (West Scotland U. ; SUPA, UK) ; Spohr, K -M (West Scotland U. ; SUPA, UK) ; Torres, D A (West Scotland U. ; SUPA, UK) ; Wady, P (West Scotland U. ; SUPA, UK) ; Tandel, S K (Shiv Nadar U.) ; Shukla, A (Lucknow U.) et al.
Excited states of the molybdenum isotopes Mo4297,99,101 have been populated in two experiments which used fusion-fission and binary grazing reactions to populate yrast states of the nuclei of interest. In the first experiment, the GASP array of escape-suppressed Ge detectors was used to detect γ rays from fusion-fission products initiated by the interaction of a 230-MeV beam of S36 ions with a thick target of Yb176. [...]
2024 - 18 p.
- Published in : Phys. Rev. C 110 (2024) 044308
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Probing exotic cross-shell interactions at $N=28$ with single-neutron transfer on $^{47}$K
/ Paxman, C.J. (Surrey U.) ; Matta, A. (LPC, Caen) ; Catford, W.N. (Surrey U.) ; Lotay, G. (Surrey U.) ; Assié, M. (IJCLab, Orsay) ; Clément, E. (GANIL) ; Lemasson, A. (GANIL) ; Ramos, D. (GANIL) ; Orr, N.A. (LPC, Caen) ; Galtarossa, F. (IJCLab, Orsay) et al.
We present the first measurement of the $^{47}$K($d,p\gamma$)$^{48}$K transfer reaction, performed in inverse kinematics using a reaccelerated beam of $^{47}$K. The level scheme of $^{48}$K has been greatly extended with nine new bound excited states identified and spectroscopic factors deduced. [...]
arXiv:2409.12594.-
2025-04-25 - 7 p.
- Published in : Phys. Rev. Lett.
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Evolution of nuclear structure in the neutron-rich Nb96,97,99 isotopes: Evidence for shape coexistence in N=58Nb99
/ Kumar, V (West Scotland U. ; Strathclyde U.) ; Chapman, R (West Scotland U. ; Strathclyde U.) ; O'Donnell, D (West Scotland U. ; Strathclyde U.) ; Ollier, J (West Scotland U. ; Strathclyde U.) ; Orlandi, R (JAEA, Ibaraki) ; Smith, J F (West Scotland U. ; Strathclyde U.) ; Spohr, K -M (West Scotland U. ; Strathclyde U.) ; Torres, D A (West Scotland U. ; Strathclyde U.) ; Wady, P (West Scotland U. ; Strathclyde U.) ; Tandel, S K (Shiv Nadar U.) et al.
Excited states of the neutron-rich niobium isotopes Nb96,97,98,4196,97,98,99 have been populated in two experiments which used fusion-fission and multinucleon binary grazing reactions to populate high-spin yrast states. In the multinucleon-transfer experiment, a 530-MeV beam of Zr96 ions was incident on a thin Sn124 target; projectile-like ejectiles were detected and identified using the PRISMA magnetic spectrometer and the associated γ rays were detected using the CLARA array of Ge detectors. [...]
2023 - 19 p.
- Published in : Phys. Rev. C 108 (2023) 044313
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High-Precision Spectroscopy of O20 Benchmarking Ab Initio Calculations in Light Nuclei
/ Zanon, I. (INFN, Legnaro ; Ferrara U.) ; Clément, E. (GANIL) ; Goasduff, A. (INFN, Legnaro) ; Menéndez, J. (ICC, Barcelona U.) ; Miyagi, T. (Darmstadt, Tech. U. ; Heidelberg, Max Planck Inst. ; Darmstadt, GSI) ; Assié, M. (IJCLab, Orsay) ; Ciemała, M. (Cracow, INP) ; Flavigny, F. (LPC, Caen) ; Lemasson, A. (GANIL) ; Matta, A. (LPC, Caen) et al.
The excited states of unstable $^{20}$O were investigated via $\gamma$-ray spectroscopy following the $^{19}$O$(d,p)^{20}$O reaction at 8 $A$MeV. By exploiting the Doppler Shift Attenuation Method, the lifetime of the 2$^+_2$ and 3$^+_1$ states were firmly established. [...]
arXiv:2405.14305.-
2023-12-28 - 7 p.
- Published in : Phys. Rev. Lett. 131 (2023) 262501
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Shape evolution in even-mass $^{98-104}$Zr isotopes via lifetime measurements using the $\gamma \gamma $-coincidence technique
/ Pasqualato, G. (IJCLab, Orsay) ; Ansari, S. (IRFU, Saclay) ; Heines, J.S. (Oslo U.) ; Modamio, V. (Oslo U.) ; Görgen, A. (Oslo U.) ; Korten, W. (IRFU, Saclay) ; Ljungvall, J. (IJCLab, Orsay ; Strasbourg, IPHC) ; Clément, E. (GANIL) ; Dudouet, J. (IP2I, Lyon) ; Lemasson, A. (GANIL) et al.
The Zirconium (Z = 40) isotopic chain has attracted interest for more than four decades. The abrupt lowering of the energy of the first $2^+$ state and the increase in the transition strength B(E2; $2_1^\rightarrow 0_1^+$ going from $^{98}$Zr to $^{100}$Zr has been the first example of "quantum phase transition" in nuclear shapes, which has few equivalents in the nuclear chart. [...]
arXiv:2410.17004.-
2023-11-21 - 13 p.
- Published in : Eur. Phys. J. A 59 (2023) 276
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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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Study of the neutron-rich region in the vicinity of 208Pb via multinucleon transfer reactions
/ Čolović, Petra (Boskovic Inst., Zagreb) ; Illana, Andrés (INFN, Legnaro) ; Szilner, Suzana (Boskovic Inst., Zagreb) ; Valiente-Dobón, Jose-Javier (INFN, Legnaro) ; Corradi, Lorenzo (INFN, Legnaro) ; Mijatović, Tea (Boskovic Inst., Zagreb) ; Benzoni, Giovanna (Milan U. ; INFN, Milan) ; Borge, María José García (Madrid, Inst. Estructura Materia) ; Boso, Alberto (Padua U. ; INFN, Padua) ; Ceruti, Simone (Milan U. ; INFN, Milan) et al.
The multinucleon transfer reaction mechanism was employed to populate isotopes around the doubly-magic 208 Pb nucleus. We used an unstable 94 Rb beam on 208 Pb targets of different thickness. [...]
2019 - 4 p.
- Published in : EPJ Web Conf. 223 (2019) 01012
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In : IV International Conference on Nuclear Structure and Dynamics (NSD2019), Venice, Italy, 13 -17 May 2019, pp.01012
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Evidence for spherical-oblate shape coexistence in $^{87}\mathrm{Tc}$
/ Liu, X (Stockholm, Res. Inst. Atomic Phys. ; Lanzhou, Inst. Modern Phys. ; Beijing, GUCAS) ; Cederwall, B (Stockholm, Res. Inst. Atomic Phys.) ; Qi, C (Stockholm, Res. Inst. Atomic Phys.) ; Wyss, R A (Stockholm, Res. Inst. Atomic Phys.) ; Aktas, Ö (Stockholm, Res. Inst. Atomic Phys.) ; Ertoprak, A (Stockholm, Res. Inst. Atomic Phys. ; Istanbul U.) ; Zhang, W (Stockholm, Res. Inst. Atomic Phys.) ; Clément, E (GANIL) ; de France, G (GANIL) ; Ralet, D (CSNSM, Orsay) et al.
Excited states in the neutron-deficient nucleus $^{87}$Tc have been studied via the fusion-evaporation reaction $^{54}$Fe($^{36}$Ar, 2$n$1p) $^{87}$Tc at 115 MeV beam energy. The AGATA γ -ray spectrometer coupled to the DIAMANT, NEDA, and Neutron Wall detector arrays for light-particle detection was used to measure the prompt coincidence of $\gamma$ rays and light particles. [...]
2022 - 6 p.
- Published in : Phys. Rev. C 106 (2022) 034304
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Evidence of Partial Seniority Conservation in the $\pi{g}_{9/2}$ Shell for the $N=50$ Isotones
/ Pérez-Vidal, R M (Valencia U., IFIC ; INFN, Legnaro) ; Gadea, A (Valencia U., IFIC) ; Domingo-Pardo, C (Valencia U., IFIC) ; Gargano, A (INFN, Naples ; Carlos III U., Madrid) ; Valiente-Dobón, J J (INFN, Legnaro) ; Clément, E (GANIL) ; Lemasson, A (GANIL) ; Coraggio, L (INFN, Naples ; Carlos III U., Madrid ; Napoli Seconda U.) ; Siciliano, M (Argonne, PHY) ; Szilner, S (Boskovic Inst., Zagreb) et al.
The reduced transition probabilities for the $4^+_1 \to 2^+_1$ and $2^+_1 \to 0^+_1$ transitions in $^{92}$Mo and $^{94}$Ru and for the $4^+_1 \to 2^+_1$ and $6^+_1 \to 4^+_1$ transitions in $^{90}$Zr have been determined in this experiment making use of a multinucleon transfer reaction. These results have been interpreted on the basis of realistic shell-model calculations in the $f_{5/2}, p_{3/2}, p_{1/2},$ and $g_{9/2}$ proton valence space. [...]
2022 - 7 p.
- Published in : Phys. Rev. Lett. 129 (2022) 112501
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