Eur. Phys. J. A (2005) 26: 321-326
https://doi.org/10.1140/epja/i2005-10186-y

Original Article

Octupole-deformed molecular bands in ²¹Ne

¹ SF7, Hahn-Meitner-Institut, Glienicker Straße 100, D-14109, Berlin, Germany
² Fachbereich Physik, Freie Universität Berlin, Arnimallee 14, D-14195, Berlin, Germany
³ Department of Physics and Astronomy, Ohio University, Athens, OH, USA
⁴ Laboratori Nazionali di Legnaro, INFN, Via Romea 4, I-35020, Legnaro (Padova), Italy
⁵ Dipartimento di Fisica dell'Università and INFN, Sezione di Padova, I-35131, Padova, Italy
⁶ Dipartimento di Fisica dell'Università and INFN, Via G. Sansone 1, I-50019, Sesto Fiorentino (Firenze), Italy

^* e-mail: wheldon@hmi.de;

Received: 18 October 2005
Accepted: 15 December 2005
Published online: 11 January 2006

Abstract

Cluster states up to 12 MeV in the stable light nucleus ²¹Ne, based on the ¹⁶ O + n + α molecular configurations, have been populated in the incomplete-fusion reaction ¹⁶  ₈ O(⁷ ₃ Li, np)²¹ ₁₀ Ne at 29.4 MeV. The observation of both intra- and inter-band transitions leads to a re-interpretation of some levels in the K ^π = ^- and K ^π = ^- bands. The implications of this re-ordering on the octupole doublet bands are examined. The data allow a more accurate determination of some previously uncertain level energies. The “missing” I ^π = ^- level is also discussed.