Identification of a proton-emitting isomer in [Formula Presented]
Document Type
Article
Publication Date
1-1-1999
Abstract
An isomer of [Formula Presented] was identified by its direct proton radioactivity. It was produced by bombardment of [Formula Presented] with 266-MeV [Formula Presented] from the Holifield Radioactive-Ion Beam Facility, mass separated with a recoil separator and implanted in a double-sided silicon strip detector, which provided signals to correlate each proton decay with a particular implant. The proton energy and half-life of [Formula Presented] were measured to be 1310(10) keV and [Formula Presented] respectively. The half-life of the previously known [Formula Presented] ground state was observed to be [Formula Presented] in agreement with the previously adopted value of 88(10) ms. Comparison of the half-life of [Formula Presented] with WKB barrier-penetration calculations leads to the conclusion that the isomer is a [Formula Presented] proton state. A two-potential approach predicts a half-life of [Formula Presented] which yields an experimental spectroscopic factor of [Formula Presented] © 1999 The American Physical Society.
Publication Source (Journal or Book title)
Physical Review C - Nuclear Physics
First Page
R2984
Last Page
R2988
Recommended Citation
Bingham, C., Batchelder, J., Rykaczewski, K., Toth, K., Yu, C., Ginter, T., Gross, C., Grzywacz, R., Karny, M., Kim, S., MacDonald, B., Mas, J., McConnell, J., Semmes, P., Szerypo, J., Weintraub, W., & Zganjar, E. (1999). Identification of a proton-emitting isomer in [Formula Presented]. Physical Review C - Nuclear Physics, 59 (6), R2984-R2988. https://doi.org/10.1103/PhysRevC.59.R2984