Eur. Phys. J. A 14, 393-396 (2002)
DOI: 10.1140/epja/i2002-10049-1

Short Note

Evidence for excited states in

K. Lagergren¹, B. Cederwall¹, A. Johnson¹, J. Blomqvist¹, D. Sohler², G. de Angelis³, P. Bednarczyk^{4, 5}, T. Bäck¹, T. Claesson¹, O. Dorvaux⁴, E. Farnea ³, A. Gadea³, M. Górska⁶, L. Milechina¹, L.-O. Norlin¹, A. Odahara⁴, M. Palacz⁷, I. Stefanescu⁸, O. Thelen⁸ and J.P. Vivien<sup>4

1</sup>  Department of Physics, Royal Institute of Technology, SE-10691 Stockholm, Sweden
²  Institute for Nuclear Research, H-4001 Debrecen, Hungary
³  INFN Laboratori Nazionali di Legnaro, 35020 Legnaro, Italy
⁴  Institut de Recherches Subatomiques, F-67037 Strasbourg, France
⁵  H. Niewodniczanski Institute of Nuclear Physics, Krakow, Poland
⁶  Gesellschaft für Schwerionenforschung, Planckstrasse 1, D-64291 Darmstadt, Germany
⁷  Heavy Ion Laboratory, Warsaw University, 02-093 Warszawa, Poland
⁸  Institute for Nuclear Physics, University of Cologne D-50937 Cologne, Germany

karin@nuclear.kth.se

(Received: 31 May 2002 Communicated by C. Signorini)

Abstract
The first evidence for excited states in is presented. is the heaviest T_z=1/2 nucleus for which gamma-rays have been identified. The reaction ( , 1p2n) was used in the experiment, which resulted in the assignment of three gamma-rays to . A detector system consisting of the detector arrays Euroball, Neutron Wall and Euclides was used to detect gamma-rays, neutrons and charged particles, respectively.

PACS
23.20.Lv - Gamma transitions and level energies.
25.70.Gh - Compound nucleus.
27.60.+j - .

© Società Italiana di Fisica, Springer-Verlag 2002