Eur. Phys. J. A (2005) 23: 197-200
https://doi.org/10.1140/epja/i2004-10076-x

Measurements of ¹¹⁰Xe and ¹⁰⁶Te decay half-lives

¹ Institute of Experimental Physics, Warsaw University, PL-00-681, Warszawa, Poland
² Gesellschaft für Schwerionenforschung, D-64220, Darmstadt, Germany
³ Department of Physics, University of Tennessee, 37996, Knoxville, TN, USA
⁴ St. Petersburg Nuclear Physics Institute, 188-350, Gatchina, Russia
⁵ University of Sofia, BG-1164, Sofia, Bulgaria
⁶ T. Shevchenko National University, 01 033, Kiev, Ukraine
⁷ Department of Physical Sciences, University “Federico II” and INFN, I-80126, Napoli, Italy
⁸ Department of Physics, University of Leuven, B-3001, Leuven, Belgium
⁹ Continental Teves AG & Co. oHG, D-60488, Frankfurt, Germany

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

Received: 12 July 2004
Accepted: 24 September 2004
Published online: 2 December 2004

Abstract

The α-decays of ¹¹⁰Xe and ¹⁰⁶Te were studied at the GSI on-line mass separator. By using the grow-in and decay of the α activity, observed in pulsed-beam measurement, the half-life of ¹¹⁰Xe was found to be T _1/2 = 105⁺³⁵ _-25ms. The lifetime of ¹⁰⁶Te was determined to be T _1/2 = 70⁺²⁰ _-10μs by measuring the time between two successive ¹¹⁰Xe →^{106} Te →^{102} Sn α-decays. The newly determined half-lives were used to calculate reduced α-decay widths for ¹⁰⁶Te and ¹¹⁰Xe. Universal systematics of reduced α widths are proposed to search for the evidence of enhancement of the α formation amplitude in the emitters above ¹⁰⁰Sn.