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Transition probabilities of low-lying excited states in 210Po and 210Pb
/ Georgiev, Georgi (IJCLab, Orsay, France) ; Rainovski, Georgi (St. Kliment Ohridski, University of Sofia, Bulgaria) ; Stuchbery, Andrew (The Australian National University, Canberra, Australia) ; Podolyák, Zsolt (University of Surrey, Guildford, UK)
CERN-INTC-2022-036 ; INTC-P-638.
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2022.
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Reinterpretation of excited states in $^{212}$Po: Shell-model multiplets rather than $\alpha$-cluster states
/ Fernández, A (CSIC, Madrid) ; Jungclaus, A (CSIC, Madrid) ; Golubev, P (Lund U.) ; Rudolph, D (Lund U.) ; Sarmiento, L G (Lund U.) ; Gargano, A (INFN, Naples) ; Naïdja, H (Constantine U.) ; Astier, A (IJCLab, Orsay) ; Dupont, E (IJCLab, Orsay) ; Gadea, A (Valencia U., IFIC) et al.
A $\gamma$ -ray spectroscopic study of $^{212}$Po was performed at the Grand Accélérateur National d’Ions Lourds, using the inverse kinematics α-transfer reaction $^{12}$C($^{208}$Pb, $^{212}$Po) $^8$Be and the AGATA spectrometer. A careful analysis based on $\gamma \gamma$ coincidence relations allowed us to establish 14 new excited states in the energy range between 1.9 and 3.3 MeV. [...]
2021 - 19 p.
- Published in : Phys. Rev. C 104 (2021) 054316
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Coulomb Excitation of Proton-rich $N = 80$ Isotones at HIE-ISOLDE
/ Kern, Ralph (Darmstadt, Tech. U.) ; Zidarova, Radostina (Darmstadt, Tech. U.) ; Pietralla, Norbert (Darmstadt, Tech. U.) ; Rainovski, Georgi (Sofiya U.) ; Gaffney, Liam P (CERN) ; Blazhev, Andrey (Cologne U.) ; Boukhari, Amar (CERN) ; Cederkäll, Joakim (CERN ; Lund U. (main)) ; Cubiss, James G (York U., England) ; Djongolov, Martin (Sofiya U.) et al.
A projectile Coulomb-excitation experiment was performed at the radioactive ion beam facility HIE-ISOLDE at CERN. The radioactive $^{140}$Nd and $^{142}$Sm ions were post accelerated to the energy of 4.62 MeV/A and impinged on a 1.45 mg/cm$^2$-thin $^{208}$Pb target. [...]
2020 - 8 p.
- Published in : J. Phys. : Conf. Ser. 1555 (2020) 012027
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In : 23rd International School on Nuclear Physics, Neutron Physics and Applications, Varna, Bulgaria, 22 - 28 Sep 2019, pp.012027
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Proton-neutron balance in the properties of $\mathrm{^{136}Te}$
/ Zidarova, Radostina (Institut fur Kernphysik, Technische Universitat Darmstadt, 64289 Darmstadt, Germany) ; Pietralla, Norbert (Institut fur Kernphysik, Technische Universitat Darmstadt, 64289 Darmstadt, Germany) ; Rainovski, Georgi (Faculty of Physics, St. Kliment Ohridski, University of Sofia, 1164 Sofia, Bulgaria) ; Werner, Volker (Institut fur Kernphysik, Technische Universitat Darmstadt, 64289 Darmstadt, Germany) ; Ahmed, Usama (Institut fur Kernphysik, Technische Universitat Darmstadt, 64289 Darmstadt, Germany) ; Djongolov, Martin (Faculty of Physics, St. Kliment Ohridski, University of Sofia, 1164 Sofia, Bulgaria) ; Gladnishki, Kalin (Faculty of Physics, St. Kliment Ohridski, University of Sofia, 1164 Sofia, Bulgaria) ; Ide, Katharina Elizabeth (Institut fur Kernphysik, Technische Universitat Darmstadt, 64289 Darmstadt, Germany) ; John, Phillip (Institut fur Kernphysik, Technische Universitat Darmstadt, 64289 Darmstadt, Germany) ; Karayonchev, Vasil (Institut fur Kernphysik, Universitat zu Koeln, 50937 Koeln, Germany) et al.
CERN-INTC-2021-029 ; INTC-P-600.
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2021.
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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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Restoring the valence-shell stabilization in $^{140}$Nd
/ Kern, R (Darmstadt, Tech. U.) ; Zidarova, R (Darmstadt, Tech. U. ; Sofiya U.) ; Pietralla, N (Darmstadt, GSI) ; Rainovski, G (Sofiya U.) ; Stegmann, R (Darmstadt, GSI) ; Blazhev, A (Cologne U.) ; Boukhari, A (CERN) ; Cederkäll, J (CERN ; Lund U. (main)) ; Cubiss, J G (York U., England) ; Djongolov, M (Sofiya U.) et al.
A projectile Coulomb-excitation experiment was performed at the radioactive-ion beam facility HIE-ISOLDE at CERN to obtain $E2$ and $M1$ transition matrix elements of $^{140}$Nd using the multistep Coulomb-excitation code GOSIA. The absolute $M1$ strengths, $\textrm{B}(M1;2^+_2→2^+_1)=0.033(8)μ^2_N,\textrm{B}(M1;2^+_3→2^+_1)=0.26^{+0.11}_{−0.10}μ^2_N$, and $\textrm{B}(M1;2^+_4→2^+_1)<0.04μ^2_{\textrm{N}}$, identify the $2^+_3$ state as the main fragment of the one-quadrupole-phonon proton-neutron mixed-symmetry state of $^{140}$Nd. [...]
2020 - 6 p.
- Published in : Phys. Rev. C 102 (2020) 041304
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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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