Eur. Phys. J. A 14, 137-146 (2002)
DOI: 10.1140/epja/i2002-10005-1

High-resolution in-beam particle spectroscopy -New results on prompt proton emission from

D. Rudolph¹, D.G. Sarantites², C. Andreoiu¹, C. Fahlander¹, D.P. Balamuth³, R.J. Charity², M. Devlin², J. Eberth⁴, A. Galindo-Uribarri⁵, P.A. Hausladen³, D. Seweryniak⁶, L.G. Sobotka² and Th. Steinhardt<sup>4

1</sup>  Department of Physics, Lund University, S-22100 Lund, Sweden
²  Chemistry Department, Washington University, St. Louis, MO 63130, USA
³  Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA 19104, USA
⁴  Institut für Kernphysik, Universität zu Köln, D-50937 Köln, Germany
⁵  Physics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
⁶  Physics Division, Argonne National Laboratory, Argonne, IL 60439, USA

Dirk.Rudolph@kosufy.lu.se

(Received: 11 March 2002 / Revised version: 4 April 2002 Communicated by D. Schwalm)

Abstract
Prompt proton decay lines in ⁵⁸Cu have been studied by means of high-resolution in-beam particle- coincidence spectroscopy using the GAMMASPHERE Ge-detector array in conjunction with a dedicated set of ancillary detectors including four - E silicon-strip telescopes. High-spin states in ⁵⁸Cu have been populated via the heavy-ion fusion-evaporation reaction at 148 MeV beam energy. The full-width at half maximum for the proton peak could be reduced significantly compared to earlier experiments. The results indicate that only one prompt proton decay branch exists in the decay-out of the well-deformed band of ⁵⁸Cu.

PACS
23.20.Lv - Gamma transitions and level energies.
23.50.+z - Decay by proton emission.
27.40.+z - .

© Società Italiana di Fisica, Springer-Verlag 2002