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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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Low-lying electric dipole $γ$-continuum for the unstable $^{62,64}$Fe nuclei: Strength evolution with neutron number
/ Avigo, R (INFN, Milan ; Milan U.) ; Wieland, O (INFN, Milan) ; Bracco, A (INFN, Milan ; Milan U.) ; Camera, F (INFN, Milan ; Milan U.) ; Ameil, F (Darmstadt, GSI) ; Arici, T (Darmstadt, GSI) ; Ataç, A (Royal Inst. Tech., Stockholm) ; Barrientos, D (CERN) ; Bazzacco, D (INFN, Padua) ; Bednarczyk, P (Cracow, INP) et al.
The γ -ray emission from the nuclei $^{62,64}$Fe following Coulomb excitation at bombarding energy of 400-440 AMeV was measured with special focus on E 1 transitions in the energy region 4-8 MeV. The unstable neutron-rich nuclei $^{62,64}$Fe were produced at the FAIR-GSI laboratories and selected with the FRS spectrometer. [...]
2020 - 6 p.
- Published in : Phys. Lett. B 811 (2020) 135951
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High-Statistics Sub-Barrier Coulomb Excitation of $^{106,108,110}$Sn
/ Park, J (Lund U.) ; Knyazev, A (Lund U.) ; Rickert, E (Lund U.) ; Golubev, P (Lund U.) ; Cederkäll, J (Lund U. ; CERN) ; Andreyev, A N (CERN ; York U., England) ; de Angelis, G (INFN, Legnaro) ; Arnswald, K (Cologne U.) ; Barber, L (Manchester U.) ; Berger, C (Munich, Tech. U.) et al.
A Coulomb excitation campaign on $^{106,108,110}$Sn at 4.4–4.5 MeV/u was launched at the HIE-ISOLDE facility at CERN. Larger excitation cross sections and γ-ray statistics were achieved compared to previous experiments at ∼2.8 MeV/u. [...]
2020 - 3 p.
- Published in : JPS Conf. Proc. 32 (2020) 010036
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In : 13th International Conference on Nucleus-Nucleus Collisions (NN 2018), Omiya, Saitama, Japan, 4 - 8 Dec 2018, pp.010036
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Probing intruder configurations in 188Pb using Coulomb excitation
/ Kibedi, Tibor (ANU Canberra) ; Lane, Greg (ANU Canberra) ; Konki, Joonas (CERN-ISOLDE) ; Stora, Thierry (CERN-ISOLDE) ; Rodriguez, Jose Alberto (CERN-ISOLDE) ; Labiche, Marc (STFC Daresbury Laboratory) ; Papadakis, Philippos (STFC Daresbury Laboratory) ; Kröll, Thorsten (TU Darmstadt) ; Davinson, Tom (University of Edinburgh) ; Bastin, Beyhan (GANIL) et al.
CERN-INTC-2019-023 ; INTC-SR-080.
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2019.
Fulltext
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Measurement of lifetimes in $^{62,64}$Fe,$^{61,63}$Co , and $^{59}$Mn
/ Klintefjord, M (Oslo U.) ; Ljungvall, J (CSNSM, Orsay) ; Görgen, A (Oslo U.) ; Lenzi, S M (INFN, Padua ; Padua U.) ; Bello Garrote, F L (Oslo U) ; Blazhev, A (Cologne U.) ; Clément, E (GANIL) ; de France, G (GANIL) ; Delaroche, J P (CEA DAM) ; Désesquelles, P (CSNSM, Orsay) et al.
Lifetimes of the 41+ states in 62,64Fe and the 11/21− states in 61,63Co and 59Mn were measured at the Grand Accélérateur National d'Ions Lourds (GANIL) facility by using the Advanced Gamma Tracking Array (AGATA) and the large-acceptance variable mode spectrometer (VAMOS++). The states were populated through multinucleon transfer reactions with a U238 beam impinging on a Ni64 target, and lifetimes in the picosecond range were measured by using the recoil distance Doppler shift method. [...]
2017 - 11 p.
- Published in : Phys. Rev. C 95 (2017) 024312
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Low-energy Coulomb excitation of $^{96,98}$Sr beams
/ Clément, E (GANIL ; CERN) ; Zielińska, M (IRFU, Saclay ; Warsaw U., Heavy Ion Lab) ; Péru, S (CEA DAM) ; Goutte, H (IRFU, Saclay) ; Hilaire, S (CEA DAM) ; Görgen, A (Oslo U.) ; Korten, W (IRFU, Saclay) ; Doherty, D T (IRFU, Saclay ; York U., England) ; Bastin, B (GANIL) ; Bauer, C (Darmstadt, Tech. U.) et al.
The structure of neutron-rich $^{96,98}$Sr nuclei was investigated by low-energy safe Coulomb excitation of radioactive beams at the REX-ISOLDE facility, CERN, with the MINIBALL spectrometer. A rich set of transitional and diagonal E2 matrix elements, including those for non-yrast structures, has been extracted from the differential Coulomb-excitation cross sections. [...]
2016 - 17 p.
- Published in : Phys. Rev. C 94 (2016) 054326
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Determination of the $B(E3,0^+ \rightarrow 3^-)$ strength in the octupole-correlated nuclei $^{142,144}$Ba using Coulomb excitation
/ Andreyev, Andrei (University of York) ; Barton, Charles (University of York) ; Blazhev, Andrey (University of Cologne) ; Butler, Peter Anthony (University of Liverpool) ; Cederkäll, Joakim (Lund University) ; Cline, Douglas (University of Rochester) ; Cocolios, Thomas Elias (KU Leuven) ; Danchev, Miroslav (Sofia University) ; Van Duppen, Piet (KU Leuven) ; Gaffney, Liam Paul (ISOLDE-CERN) et al.
CERN-INTC-2017-002 ; INTC-CLL-027.
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2017.
Fulltext - Original Document (INTC-P-348)
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Determination of the $B(E3,0^+ \rightarrow 3^-)$ strength in the octupole-correlated nuclei $^{142,144}$Ba using Coulomb excitation
/ Andreyev, Andrei (York University) ; Barton, Charles (York University) ; Blazhev, Andrey (Cologne University) ; Butler, Peter Anthony (Liverpool University) ; Cederkäll, Joakim (Lund University) ; Cline, Douglas (University of Rochester) ; Cocolios, Thomas Elias (KU Leuven) ; Danchev, Miroslav (Sofia University) ; Van Duppen, Piet (KU Leuven) ; Gernhäuser, Roman (LMU Munich) et al.
CERN-INTC-2016-042 ; INTC-SR-054.
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2016.
Fulltext
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