Eur. Phys. J. A (2005) 25: 1-4
https://doi.org/10.1140/epja/i2005-10109-0

Original Article

Unnatural-parity states in ⁴⁴ ₂₁Sc₂₃

¹ The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, Kraków, Poland
² Gesellschaft für Schwerionen, Darmstadt, Germany
³ Università degli Studi di Milano and INFN, Milano, Italy
⁴ Institut de Recherches Subatomiques, Strasbourg, France
⁵ University of Paisley, Paisley, Scotland, UK

^* e-mail: Malgorzata.Lach@ifj.edu.pl

Received: 8 March 2005
Accepted: 27 June 2005
Published online: 11 July 2005

Abstract

High-spin states of the ⁴⁴Sc nucleus, populated in the 68 MeV ¹⁸O + ³⁰Si reaction, have been studied in a γ-γ-recoil coincidence experiment. The detailed decay pattern, with various paths and cross-transitions, has been extended up to 9.1 MeV. High-quality DCO and polarization information assign spins and parities for the majority of the observed levels. The negative-parity states are discussed and compared with rotational bands in neighbouring f _7/2-shell nuclei.