Using β-decay to map the E2 strength in the Cd isotopes and the downfall of vibrational motion

P. E. Garrett, K. L. Green, R. A.E. Austin, G. C. Ball, D. S. Bandyopadhyay, S. Colosimo, D. S. Cross, G. A. Demand, G. F. Grinyer, G. Hackman, W. D. Kulp, K. G. Leach, A. C. Morton, C. J. Pearson, A. A. Phillips, M. A. Schumaker, C. E. Svensson, J. Wong, J. L. Wood, S. W. Yates

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

The β decay of 112Ag has been used to populate spin 0 + and 2+ states in 112Cd to 3 MeV excitation energy. The statistical quality obtained allows the extraction of very weak γ-ray branching ratios that, combined with known level lifetimes, enables the determination of the B(E2) values or upper limits for transitions populating the proposed two-phonon states. While candidates for 3+, 4 +, and 6+ three-phonon levels have been identified, there are no candidates for the 0+ and 2+ three phonon levels, and the upper limits of the B(E2) values indicate that phonon E2 strength is not fragmented, but absent below 5hω2.

Original languageEnglish
Pages (from-to)799-802
Number of pages4
JournalActa Physica Polonica B
Volume42
Issue number3-4
DOIs
StatePublished - Mar 2011

ASJC Scopus subject areas

  • Physics and Astronomy (all)

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