68Ga decays to the excited states of 68Zn through the electron capture decay mode. New recommended values for the emission probability of 1077keV gamma-ray given by the ENSDF and DDEP databases all use data from absolute measurements. In 2011 Jiang Liyang deduced a new value for 1077keV gamma-ray emission probability by measuring the 69Ga(n,2n)68Ga reaction cross section. The new value is about 20% lower than values obtained from previous absolute measurements and evaluations. In this paper, the discrepancies among the measurements and evaluations are analyzed carefully and the new values are re-recommended. Our recommended value for the emission probability of 1077keV gamma-ray is 2.72+-0.16 %.
@article{arxiv.1309.7722,
title = {Evaluation of the 1077keV gamma-ray emission probability from 68Ga decay},
author = {X. L. Huang and L. Y. Jiang and X. J. Chen and G. C. Chen},
journal= {arXiv preprint arXiv:1309.7722},
year = {2015}
}