Discovery of the new proton emitter ¹⁴⁴Tm

Authors

R. Grzywacz, The University of Tennessee, Knoxville
M. Karny, Uniwersytet Warszawski
K. P. Rykaczewski, ORNL Physics Division
J. C. Batchelder, Oak Ridge Associated Universities
C. R. Bingham, The University of Tennessee, Knoxville
D. Fong, Vanderbilt University
C. J. Gross, ORNL Physics Division
W. Krolas, Joint Institute for Heavy Ion Research
C. Mazzocchi, The University of Tennessee, Knoxville
A. Piechaczek, Louisiana State University
M. N. Tantawy, The University of Tennessee, Knoxville
J. A. Winger, Mississippi State University
E. F. Zganjar, Louisiana State University

Document Type

Conference Proceeding

Publication Date

9-1-2005

Abstract

Evidence for the proton decay of 144Tm was found in an experiment at the Recoil Mass Spectrometer at Oak Ridge National Laboratory. The 144Tm events were found in the weak p5n channel of the fusion reaction using a 58Ni beam at 340 MeV on a 92Mo target. The observed proton decay energies are 1.70 MeV and 1.43 MeV and the half-life ∼ 1.9μs. The decay properties suggest proton emission from the dominant πh 11/2 part of the wave function and from the small πf 7/2 admixture coupled to a quadrupole vibration. © Società Italiana di Fisica / Springer-Verlag 2005.

Publication Source (Journal or Book title)

European Physical Journal A

First Page

145

Last Page

147

Recommended Citation

Grzywacz, R., Karny, M., Rykaczewski, K., Batchelder, J., Bingham, C., Fong, D., Gross, C., Krolas, W., Mazzocchi, C., Piechaczek, A., Tantawy, M., Winger, J., & Zganjar, E. (2005). Discovery of the new proton emitter ¹⁴⁴Tm. European Physical Journal A, 25 (SUPPL. 1), 145-147. https://doi.org/10.1140/epjad/i2005-06-210-2