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Excited State Lifetime Measurements in Rare Earth Nuclei with Fast Electronics

Werner, V. ; Cooper, N. ; Bonett-Matiz, M. ; Williams, E. ; Régis, J.-M. ; Rudigier, M. ; Ahn, T. ; Anagnostatou, V. ; Berant, Z. ; Bunce, M. ; Elvers, M. ; Heinz, A. ; Ilie, G. ; Jolie, J. ; Radeck, D. ; Savran, D. ; Smith, M. (2011)
Excited State Lifetime Measurements in Rare Earth Nuclei with Fast Electronics.
In: Journal of Physics: Conference Series, 312 (9)
doi: 10.1088/1742-6596/312/9/092062
Artikel, Bibliographie

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Kurzbeschreibung (Abstract)

We investigated the collectivity of the lowest excited 2⁺ states of even-even rare earth nuclei. The B(E2) excitation strengths of these nuclei should directly correlate to the size of the valence space, and maximize at mid-shell. The previously identified saturation of B(E2) strength in well-deformed rotors at mid-shell is put to a high precision test in this series of measurements. Lifetimes of the 2⁺1 states in ¹⁶⁸Hf and ¹⁷⁴W have been measured using the newly developed LaBr₃ scintillation detectors. The excellent energy resolution in conjunction with superb time properties of the new material allows for reliable handling of background, which is a source of systematic error in such experiments. Preliminary lifetime values are obtained and discussed in the context of previous and ongoing work.

Typ des Eintrags: Artikel
Erschienen: 2011
Autor(en): Werner, V. ; Cooper, N. ; Bonett-Matiz, M. ; Williams, E. ; Régis, J.-M. ; Rudigier, M. ; Ahn, T. ; Anagnostatou, V. ; Berant, Z. ; Bunce, M. ; Elvers, M. ; Heinz, A. ; Ilie, G. ; Jolie, J. ; Radeck, D. ; Savran, D. ; Smith, M.
Art des Eintrags: Bibliographie
Titel: Excited State Lifetime Measurements in Rare Earth Nuclei with Fast Electronics
Sprache: Englisch
Publikationsjahr: 23 September 2011
Verlag: IOP Publishing
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Journal of Physics: Conference Series
Jahrgang/Volume einer Zeitschrift: 312
(Heft-)Nummer: 9
Kollation: 6 Seiten
DOI: 10.1088/1742-6596/312/9/092062
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Kurzbeschreibung (Abstract):

We investigated the collectivity of the lowest excited 2⁺ states of even-even rare earth nuclei. The B(E2) excitation strengths of these nuclei should directly correlate to the size of the valence space, and maximize at mid-shell. The previously identified saturation of B(E2) strength in well-deformed rotors at mid-shell is put to a high precision test in this series of measurements. Lifetimes of the 2⁺1 states in ¹⁶⁸Hf and ¹⁷⁴W have been measured using the newly developed LaBr₃ scintillation detectors. The excellent energy resolution in conjunction with superb time properties of the new material allows for reliable handling of background, which is a source of systematic error in such experiments. Preliminary lifetime values are obtained and discussed in the context of previous and ongoing work.

Zusätzliche Informationen:

International Nuclear Physics Conference 2010 (INPC2010); Erstveröffentlichung; Art.No.: 092062

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: 05 Mär 2024 11:53
Letzte Änderung: 05 Mär 2024 11:53
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