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Quadrupole collectivity in neutron-rich Cd isotopes

Bönig, S. ; Kröll, Th. ; Ilieva, S. ; Scheck, M. (2015)
Quadrupole collectivity in neutron-rich Cd isotopes.
In: Journal of Physics: Conference Series, 580 (1)
doi: 10.1088/1742-6596/580/1/012023
Artikel, Bibliographie

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Kurzbeschreibung (Abstract)

The proximity to the closed shells at Z = 50 and N = 82 makes the neutron-rich Cd isotopes a perfect test case for nuclear theories. The energy of the first excited 2⁺-state in the even ¹²²⁻¹²⁸ shows an irregular behaviour as the Cd isotopes exhibit only a slight increase for ¹²²Cd to ¹²⁶Cd and even a decrease from ¹²⁶Cd to ¹²⁸Cd. This anomaly can so far not be reproduced by shell model calculations. Only beyond mean field calculations with a resultant prolate deformation are capable to describe this anomalous behaviour. In order to gain more information about the neutron-rich Cd isotopes a Coulomb excitation experiment was performed with MINIBALL at REX-ISOLDE, CERN. The extracted transition strengths B (E2,0⁺gs → 2⁺₁) for ¹²²,¹²⁴,¹²⁶,¹²⁸Cd agree with beyond mean field calculations. The spectroscopic quadrupole moments Qs (2⁺₁) are compared with measurements on odd neutron-rich Cd isotopes.

Typ des Eintrags: Artikel
Erschienen: 2015
Autor(en): Bönig, S. ; Kröll, Th. ; Ilieva, S. ; Scheck, M.
Art des Eintrags: Bibliographie
Titel: Quadrupole collectivity in neutron-rich Cd isotopes
Sprache: Englisch
Publikationsjahr: 2015
Ort: Bristol
Verlag: IOP Publishing
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Journal of Physics: Conference Series
Jahrgang/Volume einer Zeitschrift: 580
(Heft-)Nummer: 1
Kollation: 4 Seiten
DOI: 10.1088/1742-6596/580/1/012023
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Kurzbeschreibung (Abstract):

The proximity to the closed shells at Z = 50 and N = 82 makes the neutron-rich Cd isotopes a perfect test case for nuclear theories. The energy of the first excited 2⁺-state in the even ¹²²⁻¹²⁸ shows an irregular behaviour as the Cd isotopes exhibit only a slight increase for ¹²²Cd to ¹²⁶Cd and even a decrease from ¹²⁶Cd to ¹²⁸Cd. This anomaly can so far not be reproduced by shell model calculations. Only beyond mean field calculations with a resultant prolate deformation are capable to describe this anomalous behaviour. In order to gain more information about the neutron-rich Cd isotopes a Coulomb excitation experiment was performed with MINIBALL at REX-ISOLDE, CERN. The extracted transition strengths B (E2,0⁺gs → 2⁺₁) for ¹²²,¹²⁴,¹²⁶,¹²⁸Cd agree with beyond mean field calculations. The spectroscopic quadrupole moments Qs (2⁺₁) are compared with measurements on odd neutron-rich Cd isotopes.

ID-Nummer: Artikel-ID: 012023
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11th International Spring Seminar on Nuclear Physics: Shell Model and Nuclear Structure – achievements of the past two decades 12–16 May 2014, Ischia, Italy

Sachgruppe der Dewey Dezimalklassifikatin (DDC): 500 Naturwissenschaften und Mathematik > 530 Physik
Fachbereich(e)/-gebiet(e): 05 Fachbereich Physik
05 Fachbereich Physik > Institut für Kernphysik
Hinterlegungsdatum: 02 Mai 2024 12:13
Letzte Änderung: 02 Mai 2024 12:13
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