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$^{97}_{37}$Rb$_{60}$: The Cornerstone of the Region of Deformation around $A\sim 100$
/ Sotty, C (CSNSM, Orsay ; Leuven U.) ; Zielińska, M (Warsaw U., Heavy Ion Lab ; IRFU, SPhN, Saclay) ; Georgiev, G (CSNSM, Orsay) ; Balabanski, D L (Bucharest, IFIN-HH) ; Stuchbery, A E (Australian Natl. U., Canberra (main)) ; Blazhev, A (Cologne U.) ; Bree, N (Leuven U.) ; Chevrier, R (CEA DAM) ; Das Gupta, S (U. Camerino, Dept. Phys. ; INFN, Perugia) ; Daugas, J M (CEA DAM) et al.
Excited states of the neutron-rich nuclei Rb97,99 were populated for the first time using the multistep Coulomb excitation of radioactive beams. Comparisons of the results with particle-rotor model calculations provide clear identification for the ground-state rotational band of Rb97 as being built on the πg9/2 [431] 3/2+ Nilsson-model configuration. [...]
2015 - 6 p.
- Published in : Phys. Rev. Lett.
- Published in : Phys. Rev. Lett.
APS Open Access article: PDF; Publisher’s Note: PDF;
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2.
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Deformation and mixing of coexisting shapes in neutron-deficient polonium isotopes
/ Kesteloot, N (KU Leuven, Dept. Phys. Astron. ; SCK-CEN, Mol) ; Bastin, B (KU Leuven, Dept. Phys. Astron. ; GANIL) ; Gaffney, L P (KU Leuven, Dept. Phys. Astron. ; Liverpool U.) ; Wrzosek-Lipska, K (KU Leuven, Dept. Phys. Astron. ; Warsaw U., Heavy Ion Lab) ; Auranen, K (Jyvaskyla U. ; Helsinki Inst. of Phys.) ; Bauer, C (Darmstadt, Tech. Hochsch.) ; Bender, M (CENBG, Gradignan) ; Bildstein, V (Munich, Tech. U.) ; Blazhev, A (Cologne U.) ; Bönig, S (Darmstadt, Tech. Hochsch.) et al.
Coulomb-excitation experiments are performed with postaccelerated beams of neutron-deficient Po196,198,200,202 isotopes at the REX-ISOLDE facility. A set of matrix elements, coupling the low-lying states in these isotopes, is extracted. [...]
2015 - 17 p.
- Published in : Phys. Rev. C 92 (2015) 054301
APS Open Access article: PDF;
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3.
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Collectivity in the light radon nuclei measured directly via Coulomb excitation
/ Gaffney, L.P. (Leuven U. ; Liverpool U.) ; Robinson, A.P. (York U., England ; Manchester U.) ; Jenkins, D.G. (York U., England) ; Andreyev, A.N. (Leuven U. ; York U., England ; JAEA, Ibaraki) ; Bender, M. (CENBG, Gradignan) ; Blazhev, A. (Cologne U.) ; Bree, N. (Leuven U.) ; Bruyneel, B. (Cologne U.) ; Butler, P.A. (Liverpool U.) ; Cocolios, T.E. (CERN ; Manchester U.) et al.
Background: Shape coexistence in heavy nuclei poses a strong challenge to state-of-the-art nuclear models, where several competing shape minima are found close to the ground state. A classic region for investigating this phenomenon is in the region around $Z=82$ and the neutron mid-shell at $N=104$. [...]
arXiv:1503.03245.-
2015-06-22 - 11 p.
- Published in : Phys. Rev. C 91 (2015) 064313
External link: Preprint
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4.
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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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5.
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The SPEDE spectrometer
/ Papadakis, P. (Jyvaskyla U. ; Helsinki Inst. of Phys.) ; Cox, D.M. (Jyvaskyla U. ; Helsinki Inst. of Phys.) ; O'Neill, G.G. (Liverpool U. ; Western Cape U.) ; Borge, M.J.G. (CERN) ; Butler, P.A. (Liverpool U.) ; Gaffney, L.P. (CERN) ; Greenlees, P.T. (Jyvaskyla U. ; Helsinki Inst. of Phys.) ; Herzberg, R.D. (Liverpool U.) ; Illana, A. (Leuven U.) ; Joss, D.T. (Liverpool U.) et al.
The electron spectrometer, SPEDE, has been developed and will be employed in conjunction with the Miniball spectrometer at the HIE-ISOLDE facility, CERN. SPEDE allows for direct measurement of internal conversion electrons emitted in-flight, without employing magnetic fields to transport or momentum filter the electrons. [...]
arXiv:1709.07449.-
2018-03-12 - 8 p.
- Published in : Eur. Phys. J. A 54 (2018) 42
Fulltext: PDF;
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6.
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Axial and triaxial degrees of freedom in $^{72}$Zn
/ Hellgartner, S (Munich, Tech. U.) ; Mücher, D (Cologne U. ; Guelph U. ; TRIUMF) ; Wimmer, K (Darmstadt, GSI ; Madrid, Inst. Estructura Materia ; Tokyo U.) ; Bildstein, V (Guelph U.) ; Egido, J L (Madrid, Autonoma U.) ; Gernhäuser, R (Munich, Tech. U.) ; Krücken, R (LBNL, NSD) ; Nowak, A K (Munich, Tech. U.) ; Zielinska, M (IRFU, Saclay) ; Bauer, C (Darmstadt, Tech. U.) et al.
The unstable N=42 nucleus 72Zn has been studied using multiple safe Coulomb excitation in inverse kinematics. The experiment was performed at the REX-ISOLDE facility at CERN making first use of the silicon detector array C-REX in combination with the γ-ray spectrometer Miniball. [...]
2023 - 8 p.
- Published in : Phys. Lett. B 841 (2023) 137933
Fulltext: PDF;
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7.
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Shape dynamics in neutron-rich Kr isotopes: Coulomb excitation of $^{92}Kr$, $^{94}Kr$ and $^{96}Kr$
/ Albers, M (Cologne U.) ; Nomura, K (Cologne U.) ; Warr, N (Cologne U.) ; Blazhev, A (Cologne U.) ; Jolie, J (Cologne U.) ; Mücher, D (Munich, Tech. U.) ; Bastin, B (KU Leuven, FET) ; Bauer, C (Darmstadt, Tech. U.) ; Bernards, C (Yale U.) ; Bettermann, L (Cologne U.) et al.
We report on the study of excited states in $^{92,94,96}Kr$ populated via projectile Coulomb excitation at safe energies. The radioactive ion beams at energies of 2.85 MeV/u were delivered by the REX-ISOLDE facility at CERN and impinged on self-supporting $^{194,196}Pt$ targets. [...]
Elsevier, Elsevier, 2013 - 28 p.
- Published in : Nucl. Phys. A 899 (2013) 1-28
- Published in : Nucl. Phys. A 947 (2016) 260-262
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8.
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Onset of collectivity in $^{96,98}$Sr studied via Coulomb excitation
/ Clement, E (GANIL) ; GöRgen, A (Oslo U.) ; Dijon, A (GANIL) ; de France, G (GANIL) ; Bastin, B (GANIL) ; Blazhev, A (Cologne U.) ; Bree, N (KU Leuven, Dept. Phys. Astron.) ; Butler, P (Liverpool U.) ; Delahaye, P (GANIL) ; Ekstrom, A (Lund U.) et al.
A rapid onset of quadrupole deformation is known to occur around the neutron number 60 in the neutron-rich Zr and Sr isotopes. This shape change has made the neutron-rich A = 100 region an active area of experimental and theoretical studies for many decades now. [...]
2014 - 4 p.
- Published in : EPJ Web Conf. 66 (2014) 02021
Fulltext: PDF;
In : 25th International Nuclear Physics Conference, pp.02021
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9.
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Study of the deformation-driving $\nu d_{5/2}$ orbital in $^{67}_{28}$Ni$_{39}$ using one-neutron transfer reactions
/ Diriken, J. (Leuven U. ; SCK-CEN, Mol) ; Patronis, N. (Ioannina U. ; Leuven U.) ; Andreyev, A.N. (JAERI, Tokai ; York U., England ; Leuven U.) ; Antalic, S. (Comenius U.) ; Bildstein, V. (Munich, Tech. U.) ; Blazhev, A. (U. Cologne) ; Darby, I.G. (Leuven U.) ; De Witte, H. (Leuven U.) ; Eberth, J. (U. Cologne) ; Elseviers, J. (Leuven U.) et al.
The $νg_{9/2} , d_{5/2}, s_{1/2}$ orbitals are assumed to be responsible for the swift onset of collectivity observed in the region below $^{68}$Ni. Especially the single-particle energies and strengths of these orbitals are of importance. [...]
2014
Elsevier Open Access article: PDF; Elsevier Open Access article (Erratum): PDF;
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10.
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Coulomb excitation of neutron-rich Cd isotopes
/ Ilieva, S (Tech. U. Darmstadt, Inst. Nucl. Phys.) ; Thürauf, M (Tech. U. Darmstadt, Inst. Nucl. Phys.) ; Kröll, Th (Tech. U. Darmstadt, Inst. Nucl. Phys.) ; Krücken, R (Munich, Tech. U.) ; Behrens, T (Munich, Tech. U.) ; Bildstein, V (Munich, Tech. U. ; Heidelberg, Max Planck Inst.) ; Blazhev, A (Cologne U.) ; Bönig, S (Tech. U. Darmstadt, Inst. Nucl. Phys.) ; Butler, P A (Liverpool U.) ; Cederkäll, J (CERN) et al.
The isotopes Cd122,124,126 were studied in a “safe” Coulomb-excitation experiment at the radioactive ion-beam facility REX-ISOLDE at CERN. The reduced transition probabilities B(E2;0g.s.+→21+) and limits for the quadrupole moments of the first 2+ excited states in the three isotopes were determined. [...]
2014 - 10 p.
- Published in : Phys. Rev. C 89 (2014) 014313
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