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Phys. Rev. C 65, 024316 (2002) [9 pages]

Evidence for proton excitations in 130,132,134,136Xe isotopes from measurements of g factors of 21+ and 41+ states

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G. Jakob1, N. Benczer-Koller1, G. Kumbartzki1, J. Holden1, T. J. Mertzimekis1, K.-H. Speidel2, R. Ernst2, A. E. Stuchbery3, A. Pakou4, P. Maier-Komor5, A. Macchiavelli6, M. McMahan6, L. Phair6, and I. Y. Lee6
1Department of Physics and Astronomy, Rutgers University, New Brunswick, New Jersey 08903
2Institut für Strahlen- und Kernphysik, Universität Bonn, Bonn, Germany
3Department of Nuclear Physics, Research School of Physical Sciences and Engineering, Australian National University, Canberra ACT 0200, Australia
4The University of Ioannina, 45110 Ioannina, Greece
5Physik-Department der Technischen Universität München, Munich, Germany
6Lawrence Berkeley National Laboratory, Berkeley, California 94720

Received 2 October 2001; published 22 January 2002

The g factors of 21+, 41+, and 22+ states in the stable 130,132,134,136Xe isotopes have been measured via projectile Coulomb excitation in inverse kinematics in combination with the transient field technique. The results show a steady decrease in g(21+) as the number of neutron holes increases in the lighter nuclei below the closed N=82 neutron shell. The g factors of the 41+ states in 132,134Xe are consistently larger than the g factors of the 21+ states, a characteristic of proton excitation. The g factors of the 21+, 41+, and 22+ states in 130Xe are approximately equal as would be expected for vibrational excitations.

© 2002 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.65.024316
DOI:
10.1103/PhysRevC.65.024316
PACS:
21.10.Ky, 25.70.De, 27.60.+j
 
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