Gamow-Teller strength distribution in the beta-decay of100Ag from total-absorption gamma spectrometry期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Gamow-Teller strength distribution in the beta-decay of100Ag from total-absorption gamma spectrometry

Authors:	L. Batist A. Bykov F. Moroz V. Wittmann G. D. Alkhazov H. Keller R. Kirchner O. Klepper E. Roeckl M. Huýse P. Van Duppen G. Reusen A. Płochocki M. Pfützner K. Rykaczewski J. Szerypo J. Żylicz B. A. Brown

Affiliation:	1. St. Petersburg Nuclear Physics Institute, 188350, Gatchina, Russia 2. Gesellschaft für Schwerionenforschung, D-64220, Darmstadt, Germany 3. Instituut voor Kern- en Stralingsfysika, B-3001, Leuven, Belgium 4. Institute of Experimental Physics, Warsaw University, Pl-00681, Warsaw, Poland 5. NSCL, Michigan State University, East Lansing, USA

Abstract:	The EC/β⁺-decay of the odd-odd nucleus¹⁰⁰Ag was studied by means of total absorptionγ-ray spectrometry. Most of the Gamow-Teller strength was found to be concentrated at an excitation energy of 5.6 MeV in¹⁰⁰Pd, the FWHM of this resonance being 1.5 MeV. The measured strength distribution which is interpreted within the BCS approximation as being due to the dominant population of four-quasiparticle excitations, resembles the distribution predicted by an advanced shell-model calculation for the⁹⁸Ag →⁹⁸Cd decay.

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