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Marchini, Naomi; Rocchini, Marco; Nannini, Adriana; Doherty, Daniel T.; Zielińska, Magdalena; Garrett, Paul E.; Hadyńska-Klęk, Katarzyna; Testov, Dmitry; Goasduff, Alain; Benzoni, Giovanna; Camera, Franco; Bakes, Samuel D.; Bazzacco, Dino; Bergmaier, Andreas; Berry, Thomas; Bidaman, Harris; Bildstein, Vinzenz; Brugnara, Daniele; Brunet, Vincent H.; Catford, Wilton N.; De Rizzo, Matteo; Diaz Varela, Alejandra; Fäestermann, Thomas; Galtarossa, Franco; [...]

Shape coexistence in 94Zr studied via Coulomb excitation

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  • Media type: E-Article
  • Title: Shape coexistence in 94Zr studied via Coulomb excitation
  • Contributor: Marchini, Naomi; Rocchini, Marco; Nannini, Adriana; Doherty, Daniel T.; Zielińska, Magdalena; Garrett, Paul E.; Hadyńska-Klęk, Katarzyna; Testov, Dmitry; Goasduff, Alain; Benzoni, Giovanna; Camera, Franco; Bakes, Samuel D.; Bazzacco, Dino; Bergmaier, Andreas; Berry, Thomas; Bidaman, Harris; Bildstein, Vinzenz; Brugnara, Daniele; Brunet, Vincent H.; Catford, Wilton N.; De Rizzo, Matteo; Diaz Varela, Alejandra; Fäestermann, Thomas; Galtarossa, Franco; [...]
  • imprint: EDP Sciences, 2019
  • Published in: EPJ Web of Conferences
  • Language: Not determined
  • DOI: 10.1051/epjconf/201922301038
  • ISSN: 2100-014X
  • Keywords: General Earth and Planetary Sciences ; General Engineering ; General Environmental Science
  • Origination:
  • Footnote:
  • Description: <jats:p>In recent years, a number of both theoretical and experimental investigations have been performed focusing on the zirconium isotopic chain. In particular, state-of-the-art Monte Carlo shell-model calculations predict shape coexistence in these isotopes. In this context, the <jats:sup>94</jats:sup>Zr nucleus, which is believed to possess a nearly spherical ground state, is particularly interesting since the purported deformed structure is basedon the low-lying 0<jats:sub>2</jats:sub><jats:sup>+</jats:sup> state, making it amenable for detailed study. In order to provide definitive conclusionson the shapes of the low-lying states, two complementary experiments to study <jats:sup>94</jats:sup>Zr by means of low-energy Coulomb excitation were performed. This data will allow the quadrupole moments of the 2<jats:sub>1,2</jats:sub><jats:sup>+</jats:sup> levels to be extracted as well as for the deformation parameters of the 0<jats:sub>1,2</jats:sub><jats:sup>+</jats:sup> states to be determined and, thus, definitive conclusions to be drawn on the role of shape coexistence in this nucleus for the first time.</jats:p> <jats:p>The first experiment was performed at the INFN Legnaro National Laboratory with the GALILEO-SPIDER setup, which, for the first time, was coupled with 6 lanthanum bromide scintillators (LaBr3:Ce) in order to maximize the <jats:italic>γ</jats:italic>-ray detection effciency. The second experiment was performed at the Maier-Leibnitz Laboratory (MLL) in Munich and used a Q3D magnetic spectrograph to detect the scattered <jats:sup>12</jats:sup>C ions following Coulomb excitation of <jats:sup>94</jats:sup>Zr targets. </jats:p>
  • Access State: Open Access