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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
Fulltext from publisher: PDF;
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Manifestation of the Berry phase in the atomic nucleus $^{213}$Pb
/ Valiente-Dobón, J.J. (INFN, Legnaro) ; Gottardo, A. (INFN, Legnaro) ; Benzoni, G. (INFN, Milan) ; Gadea, A. (Valencia U., IFIC) ; Lunardi, S. (Padua U. ; INFN, Padua) ; Algora, A. (Valencia U., IFIC) ; de Angelis, G. (INFN, Legnaro) ; Bazzacco, D. (INFN, Padua) ; Benlliure, J. (Santiago de Compostela U., IGFAE) ; Boutachkov, P. (Darmstadt, GSI) et al.
The neutron-rich $^{213}$Pb isotope was produced in the fragmentation of a primary 1 GeV $A$ $^{238}$U beam, separated in FRS in mass and atomic number, and then implanted for isomer decay $\gamma$-ray spectroscopy with the RISING setup at GSI. A newly observed isomer and its measured decay properties indicate that states in $^{213}$Pb are characterized by the seniority quantum number that counts the nucleons not in pairs coupled to angular momentum $J=0$. [...]
arXiv:2010.14859.-
2021-05-10 - 7 p.
- Published in : Phys. Lett. B 816 (2021) 136183
Article from SCOAP3: PDF; Fulltext: PDF;
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Testing ab initio nuclear structure in neutron-rich nuclei: lifetime measurements of second 2$^+$ states in $^{16}$C and $^{20}$O
/ 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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New spectroscopic information on $^{211,213}\mathrm{Tl}$: A changing structure beyond the $N=126$ shell closure
/ Gottardo, A (INFN, Legnaro ; Padua U.) ; Valiente-Dobón, J J (INFN, Legnaro) ; Benzoni, G (INFN, Milan) ; Morales, A I (INFN, Milan) ; Gadea, A (Valencia U., IFIC) ; Lunardi, S (Padua U. ; INFN, Padua) ; Boutachkov, P (Darmstadt, GSI) ; Bruce, A M (Brighton U.) ; Górska, M (Darmstadt, GSI) ; Grebosz, J (Cracow, INP) et al.
The neutron-rich isotopes $^{211,213}\mathrm{Tl}$, beyond the $N=126$ shell closure, have been studied for the first time in isomer $\gamma$-ray decay, exploiting the fragmentation of a primary uranium beam at the Fragment Separator-Rare Isotopes Investigation at GSI setup. The observed isomeric states in $^{211,213}\mathrm{Tl}$ show a deviation from the seniority-like scheme of $^{209}\mathrm{Tl}$. [...]
2019 - 7 p.
- Published in : Phys. Rev. C 99 (2019) 054326
Article from SCOAP3: PDF;
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MariX, an advanced MHz-class repetition rate X-ray source for linear regime time-resolved spectroscopy and photon scattering
/ Serafini, L (INFN, Milan ; LASA, Segrate) ; Bacci, A (INFN, Milan ; LASA, Segrate) ; Bellandi, A (DESY) ; Bertucci, M (INFN, Milan ; LASA, Segrate) ; Bolognesi, M (Milan U.) ; Bosotti, A (INFN, Milan ; LASA, Segrate) ; Broggi, F (INFN, Milan ; LASA, Segrate) ; Calandrino, R (Milan U., Inst. San Raffaele) ; Camera, F (Milan U. ; INFN, Milan ; LASA, Segrate) ; Canella, F (Milan U.) et al.
The need of a fs-scale pulsed, high repetition rate, X-ray source for time-resolved fine analysis of matter (spectroscopy and photon scattering) in the linear response regime is addressed by the conceptual design of a facility called MariX (Multi-disciplinary Advanced Research Infrastructure for the generation and application of X-rays) outperforming current X-ray sources for the declared scope. MariX is based on the original design of a two-pass two-way superconducting linear electron accelerator, equipped with an arc compressor, to be operated in CW mode (1 MHz). [...]
2019 - 6 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 930 (2019) 167-172
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Spectroscopy of particle-phonon coupled states in 133Sb by the cluster transfer reaction 132Sn on 7Li: an advanced test of nuclear interactions
/ Leoni, Silvia (University of Milano and INFN Milano, Italy) ; Benzoni, Giovanna (INFN Milano, Italy) ; Bottoni, Simone (University of Milano and INFN Milano, Italy) ; Bracco, Angela (University of Milano and INFN Milano, Italy) ; Camera, Franco (University of Milano and INFN Milano, Italy) ; Crespi, Fabio (University of Milano and INFN Milano, Italy) ; Iskra, Lukasz (INFN Milano, Italy) ; Porzio, Carlotta (University of Milano and INFN Milano, Italy) ; Ziliani, Sara (University of Milano and INFN Milano, Italy) ; Fornal, Bogdan (Institute of Nuclear Physics, Krakow, Poland) et al.
CERN-INTC-2019-003 ; INTC-SR-062.
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2019.
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Evolution of deformation in neutron-rich Ba isotopes up to $A=150$
/ Lică, R (CERN ; Bucharest, IFIN-HH) ; Benzoni, G (INFN, Milan) ; Rodríguez, T R (Madrid, Autonoma U.) ; Borge, M J G (CERN ; CSIC, Madrid) ; Fraile, L M (UCM, Somosaguas) ; Mach, H (NCBJ, Warsaw) ; Morales, A I (INFN, Milan ; Milan U. ; Valencia U., IFIC) ; Madurga, M (CERN) ; Sotty, C O (Leuven U.) ; Vedia, V (UCM, Somosaguas) et al.
/IDS
The occurrence of octupolar shapes in the Ba isotopic chain was recently established experimentally up to $N=90$. To further extend the systematics, the evolution of shapes in the most neutron-rich members of the $Z=56$ isotopic chain accessible at present, $^{148,150}$Ba, has been studied via $\beta$ decay at the ISOLDE Decay Station. [...]
2018 - 12 p.
- Published in : Phys. Rev. C 97 (2018) 024305
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$β$ decay studies of n-rich Cs isotopes with the ISOLDE Decay Station
/ Lică, R (CERN ; Bucharest, IFIN-HH) ; Benzoni, G (INFN, Milan) ; Morales, A I (INFN, Milan) ; Borge, M J G (CERN ; Madrid, Inst. Estructura Materia) ; Fraile, L M (UCM, Madrid, Dept. Phys.) ; Mach, H (Warsaw U.) ; Madurga, M (CERN) ; Sotty, C (Bucharest, IFIN-HH ; Leuven U.) ; Vedia, V (UCM, Madrid, Dept. Phys.) ; Witte, H De (Leuven U.) et al.
Neutron-rich Ba isotopes are expected to exhibit octupolar correlations, reaching their maximum in isotopes around mass A = 146. The odd-A neutron-rich members of this isotopic chain show typical patterns related to non-axially symmetric shapes, which are however less marked compared to even-A ones, pointing to a major contribution from vibrations. [...]
2017 - 14 p.
- Published in : J. Phys. G 44 (2017) 054002
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Study of the Pygmy Dipole Resonance using an Active Target
/ Ceruti, Simone (KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, Belgium) ; Raabe, Riccardo (KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, Belgium) ; Babo, Matieu (KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, Belgium) ; De Witte, Hilde (KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, Belgium) ; Marchi, Tommaso (KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, Belgium) ; Poleshchuck, Oleksi (KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, Belgium) ; Raj, Alex (KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, Belgium) ; Renaud, Maxime (KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, Belgium) ; Yang, Jiecheng (KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, Belgium) ; Bracco, Angela (Universita degli Studi di Milano and Istituto Nazionale di Fisica nucleare sez. Milano, Milano, Italy) et al.
CERN-INTC-2017-067 ; INTC-I-194.
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2017.
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Enhanced low-energy g-decay probability : Implications for r-process (n; g) reaction rates
/ Larsen, A C (Oslo U.) ; Guttormsen, M (Oslo U.) ; Bello Garrotte, F L (Oslo U.) ; Bernstein, L A (LLNL, Livermore ; UC, Berkeley (main)) ; Bleuel, D L (LLNL, Livermore) ; Bracco, A (INFN, Milan ; Milan U.) ; Brown, B A (Michigan State U. ; Michigan State U., NSCL) ; Camera, F (INFN, Milan ; Milan U.) ; Crespo Campo, L (Oslo U.) ; Frauendorf, S (Notre Dame U.) et al.
Geneva : CERN, 2015
Published version from CERN: PDF;
In : 14th International Conference on Nuclear Reaction Mechanisms, Villa Monastero, Varenna, Italy, 15 - 19 Jun 2015, pp.261
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