DOI: 10.1140/epja/i2001-10230-0
New experimental results in proton radioactivity
K.P. RykaczewskiPhysics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA and Institute of Experimental Physics, Warsaw University, Pl-00681 Warsaw, Poland rykaczew@phy.ornl.gov
(Received: 21 March 2002 / Published online: 31 October 2002)
Abstract
A review of experimental data obtained recently
on proton-radioactive nuclei is presented.
The highlights include the observation of fine structure
in proton emission, for the decays of
,
and
, and the studies of the excited states in proton-emitting
nuclei.
The observation limits are extended to few nanobarns
cross-sections (
,
and
)
and few microsecond half-lives (e.g.,
).
Measured decay properties for thirty-nine
proton-emitting ground and isomeric states
contributed to the understanding of nuclear masses and evolution
of single-particle states at and beyond the proton drip line.
Experimental results have stimulated new theoretical
approaches to proton emission and the structure
of unbound narrow resonance states.
23.50.+z - Decay by proton emission.
21.10.-k - Properties of nuclei; nuclear energy levels.
© Società Italiana di Fisica, Springer-Verlag 2002
