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Phys. Rev. Lett. 97, 172501 (2006) [4 pages]

128Cs as the Best Example Revealing Chiral Symmetry Breaking

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E. Grodner1, J. Srebrny1,2, A. A. Pasternak1,2,3, I. Zalewska1, T. Morek1, Ch. Droste1, J. Mierzejewski2, M. Kowalczyk1,2, J. Kownacki2, M. Kisieliński2,4, S. G. Rohoziński5, T. Koike6, K. Starosta7, A. Kordyasz2, P. J. Napiorkowski2, M. Wolińska-Cichocka2, E. Ruchowska4, W. Płóciennik4,*, and J. Perkowski8
1Institute of Experimental Physics, Warsaw University, ul. Hoża 69, PL-00681, Warsaw, Poland
2Heavy Ion Laboratory, Warsaw University, ul. Pasteura 5A, 02-093 Warsaw, Poland
3A. F. Ioffe Physical Technical Institute, 194021 St. Petersburg, Russia
4The A. Sołtan Institute for Nuclear Studies, 05-400, Świerk, Poland
5Institute of Theoretical Physics, Warsaw University, ul. Hoża 69, PL-00681, Warsaw, Poland
6Graduate School of Science, Tohoku University, 980-8578, Japan
7National Superconducting Cyclotron Laboratory and Department of Physics and Astronomy, Michigan State University, 164 S. Shaw Lane, East Lansing, Michigan 48825-1321, USA
8Division of Nuclear Physics, University of Łódź, 90-236 Łódź, Poland

Received 28 July 2006; published 25 October 2006

The results of the Doppler-shift attenuation method lifetime measurements in partner bands of 128Cs and 132La are presented. Experimental reduced transition probabilities in 128Cs are compared with theoretical calculations done in the frame of the core-quasiparticle coupling model. The electromagnetic properties, energy and spin of levels belonging to the partner bands show that 128Cs is the best known example revealing the chiral symmetry breaking phenomenon.

© 2006 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.97.172501
DOI:
10.1103/PhysRevLett.97.172501
PACS:
21.10.Re, 21.10.Tg, 23.20.−g, 27.60.+j

*Deceased.