Excited state lifetime measurements in rare earth nuclei with fast electronics

V. Werner*, N. Cooper, M. Bonett-Matiz, E. Williams, J. M. Régis, M. Rudigier, T. Ahn, V. Anagnostatou, Z. Berant, M. Bunce, M. Elvers, A. Heinz, G. Ilie, J. Jolie, D. Radeck, D. Savran, M. Smith

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

5 Citations (Scopus)

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.

Original languageEnglish
Article number092062
JournalJournal of Physics: Conference Series
Volume312
Issue numberSECTION 9
DOIs
Publication statusPublished - 2011
Externally publishedYes
EventInternational Nuclear Physics Conference 2010, INPC2010 - Vancouver, BC, Canada
Duration: 4 Jul 20109 Jul 2010

Fingerprint

Dive into the research topics of 'Excited state lifetime measurements in rare earth nuclei with fast electronics'. Together they form a unique fingerprint.

Cite this