The European Physical Journal A

ISSN: 1434-6001 (printed version)
ISSN: 1434-601X (electronic version)

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Abstract Volume 1 Issue 2 (1998) pp 117-118

short notes: Study of the first excited 1/2⁺ state in ¹³¹La

C. Foin, D. Barnéoud, J. Genevey, A. Gizon

Institut des Sciences Nucléaires, IN2P3-CNRS, Université Joseph Fourier, F-38026 Grenoble-Cedex, France

Received: 9 June 1997 / Revised version: 29 September 1997

Abstract: Low-spin states of ¹³¹La have been reinvestigated via the ¹¹⁵In + ²⁰Ne reaction at 95 MeV with a pulsed beam and <Gamma>-ray spectroscopy. A doublet of excited states, 1/2⁺ at 230.3 keV and 7/2⁺ at 231.2 keV, has been definitely established in ¹³¹La. Low-spin state systematics in Z=57 and N=74 isotopes are presented and discussed.

PACS: 23.20.Lv Gamma transitions and level energies - 27.60.+j 90 \leq A \leq 149

Communicated by P. Armbruster

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Online publication: February 17, 1998
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