We report the first observation of the 2+ isomer in 52Co, produced in the β decay of the 0+, 52Ni ground state. We have observed three γ-rays at 849, 1910, and 5185 keV characterizing the β de-excitation of the isomer. We have measured a half-life of 102(6) ms for the isomeric state. The Fermi and Gamow-Teller transition strengths for the β decay of 52mCo to 52Fe have been determined. We also add new information on the β decay of the 6+, 52Co ground state, for which we have measured a half-life of 112(3) ms.
@article{arxiv.1605.08769,
title = {Observation of the 2$^+$ isomer in $^{52}$Co},
author = {S. E. A. Orrigo and B. Rubio and W. Gelletly and B. Blank and Y. Fujita and J. Giovinazzo and J. Agramunt and A. Algora and P. Ascher and B. Bilgier and L. Cáceres and R. B. Cakirli and G. de France and E. Ganioğlu and M. Gerbaux and S. Grévy and O. Kamalou and H. C. Kozer and L. Kucuk and T. Kurtukian-Nieto and F. Molina and L. Popescu and A. M. Rogers and G. Susoy and C. Stodel and T. Suzuki and A. Tamii and J. C. Thomas},
journal= {arXiv preprint arXiv:1605.08769},
year = {2016}
}
Comments
Accepted for publication in PRC. 8 pages, 7 figures