Proton emission from the closed neutron shell nucleus $^{155} Ta$

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1 June 1999

journal article
research article
Published by American Physical Society (APS) in Physical Review C

Vol. 59 (6) , R2975-R2978
https://doi.org/10.1103/physrevc.59.r2975

Abstract

Proton radioactivity from the closed neutron shell nucleus

^{155} Ta

has been observed. It was produced via the p4n fusion evaporation channel using a

^{58} Ni

beam on a

^{102} Pd

target. The measured decay properties are

E_{p} = 1765 (10) keV

and

t_{1 / 2} {= 12}_{- 3}^{+ 4}

μ s .

Spin and parity

J^{π} {= 11 / 2}^{-}

and a spectroscopic factor

S_{p}^{\exp} {= 0.58}_{- 0.15}^{+ 0.20}

characterize the decaying state.

Keywords

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