2019 Impact factor 2.176
Hadrons and Nuclei
Eur. Phys. J. A 15, 417-420 (2002)
DOI: 10.1140/epja/i2002-10081-1

Short Note

Candidates for chiral doublet bands in $\chem{^{136}Nd}$

E. Mergel1, C.M. Petrache2, G. Lo Bianco2, H. Hübel1, J. Domscheit1, D. Roßbach1, G. Schönwaßer1, N. Nenoff1, A. Neußer1, A. Görgen1, F. Becker3, E. Bouchez3, M. Houry3, A. Hürstel3, Y. Le Coz3, R. Lucas3, Ch. Theisen3, W. Korten3, A. Bracco4, N. Blasi4, F. Camera4, S. Leoni4, F. Hannachi5, A. Lopez-Martens5, M. Rejmund5, D. Gassmann6, P. Reiter6, P.G. Thirolf6, A. Astier7, N. Buforn7, M. Meyer7, N. Redon7 and O. Stezowski7

1  Institut für Strahlen- and Kernphysik, Universität Bonn, Nussallee 14-16, D-53115 Bonn, Germany
2  Dipartimento di Fisica, Università di Camerino, via Madonna delle Carceri, I-62032 Camerino, and INFN, Sezione di Perugia, Italy
3  DAPNIA/SPhN, CEA Saclay, F-91191 Gif-sur-Yvette, France
4  Dipartimento di Fisica and INFN, Sezione di Milano, via Celoria 16, I-20133 Milano, Italy
5  CSNSM, IN2P3/CRNS, F-91405 Orsay, France
6  Sektion Physik, Ludwig Maximilians-Universität München, D-85748 Garching, Germany
7  Institut de Physique Nucléaire, IN2P3/CNRS, Université C. Bernard Lyon-1, F-69622 Villeurbanne Cedex, France

costel.petrache@unicam.it

(Received: 23 May 2002 / Published online: 27 November 2002)

Abstract
The even-even nucleus 136Nd was studied via in-beam $\gamma$-ray spectroscopy using the $\chem{^{16}O+{}^{125}Te}$ reaction at 100 MeV and the EUROBALL array. One new dipole band was observed. Together with a previously identified dipole band, whose position in the level scheme is revised, the new band forms a doublet structure similar to the recently observed chiral bands in the odd-odd neighboring nuclei. This would be the first case of a chiral doublet in an even-even nucleus.

PACS
23.20.Lv - Gamma transitions and level energies.
21.10.Re - Collective levels.
21.60.Ev - Collective models.
27.60.+j - $90 \leq A \leq 149$ .

© Società Italiana di Fisica, Springer-Verlag 2002