Eur. Phys. J. A (2005) 24: 205-209
https://doi.org/10.1140/epja/i2004-10137-2

Original Article

Lifetimes of proton unstable states in ¹¹³I measured by the particle-X-ray coincidence technique

¹ Institute of Experimental Physics, Warsaw University, PL-00681, Warsaw, Poland
² St. Petersburg Nuclear Physics Institute, 188-350, Gatchina, Russia
³ Gesellschaft für Schwerionenforschung, D-64291, Darmstadt, Germany
⁴ Department of Physical Sciences, University “Federico II” and INFN, I-80126, Napoli, Italy
⁵ Department of Physics, University of Tennessee, TN 37996, Knoxville, USA

^* e-mail: janas@mimuw.edu.pl

Received: 30 November 2004
Accepted: 8 February 2005
Published online: 8 March 2005

Abstract

The β-delayed proton decay of ¹¹³Xe was investigated by means of a total absorption γ-ray spectrometer and a telescope for particle detection. The energy window available for the β-delayed proton decay of ¹¹³Xe and the relative branching ratios for proton transitions to the ¹¹²Te states were remeasured. The lifetimes of proton unstable ¹¹³I states populated in the electron capture decay of ¹¹³Xe were determined by means of the particle-X-ray coincidence technique. The results of the lifetime measurements are compared with statistical-model calculations.