Eur. Phys. J. A (2005) 25: 135-138
https://doi.org/10.1140/epjad/i2005-06-037-9

ENAM 2004

Beta-decay studies near ¹⁰⁰Sn

¹ Institute of Experimental Physics, University of Warsaw, Warsaw, Poland
² St. Petersburg Nuclear Physics Institute, St. Petersburg, Russia
³ Gesellschaft für Schwerionenforschung, Darmstadt, Germany
⁴ University of Sofia, Sofia, Bulgaria
⁵ Technische Universität München, München, Germany
⁶ Departamento de Fisica Teórica, Universidad Autonoma de Madrid, Madrid, Spain
⁷ Taras Shevchenko Kiev National University, Kiev, Ukraine
⁸ Dipartimento Scienze Fisiche, Università “Federico II” and INFN Napoli, Napoli, Italy
⁹ Nuclear Science Center, New Delhi, India
¹⁰ Oak Ridge National Laboratory, Oak Ridge, TN, USA
¹¹ Continental Teves AG & Co., Frankfurt am Main, Germany
¹² Forschungszentrum Rossendorf, Dresden, Germany

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

Received: 20 December 2004
Accepted: 18 February 2005
Published online: 2 May 2005

Abstract

The β-decay of ¹⁰²Sn was studied by using high-resolution germanium detectors as well as a Total Absorption Spectrometer (TAS). A decay scheme has been constructed based on the γ-γ coincidence data. The total experimental Gamow-Teller strength B _GT ^exp of ¹⁰²Sn was deduced from the TAS data to be 4.2(9). A search for β-delayed γ-rays of ¹⁰⁰Sn decay remained unsuccessful. However, a Gamow-Teller hindrance factor h = 2.2(3), and a cross-section of about 3nb for the production of ¹⁰⁰Sn in fusion-evaporation reaction between ⁵⁸Ni beam and ⁵⁰Cr target have been estimated from the data on heavier tin isotopes. The estimated hindrance factor is similar to the values derived for lower shell nuclei.