Fusion of light weakly bound nuclei

Matière Nucléair

Medium- and high-spin band structure of the chiral candidate 132La

none36Medium- and high-spin states of La-132 have been studied based on the data obtained from Mo-100(S-36, p3n) and Cd-116(Na-23, alpha 3n) fusion-evaporation reactions using the EUROBALL and Gammasphere detector arrays, respectively. Triple-gamma coincidence relations, angular correlations, and linear polarizations of the observed gamma transitions have been deduced. The level scheme of La-132 has been considerably extended, and unambiguous spin and parity values have been assigned to most of the excited states. The configuration of one of the bands is pi g(7/2)(h(11/2))(2)nu h(11/2) instead of the previously thought pi h(11/2)nu h(11/2); thus its previously suggested magnetic rotational character cannot be upheld. The observed similarities between the level structures of La-132 and Pr-134 suggest the possible existence of a third pi h(11/2)nu h(11/2) band in La-132 that may show chiral features.noneI. Kuti;J. Timár;D. Sohler;E. Paul;K. Starosta;A. Astier;D. Bazzacco;P. Bednarczyk;A. Boston;N. Buforn;H. Chantler;C. Chiara;R. Clark;M. Cromaz;M. Descovich;Zs. Dombrádi;P. Fallon;D. Fossan;C. Fox;A. Gizon;J. Gizon;A. Hecht;N. Kintz;T. Koike;I. Lee;S. Lunardi;A. Macchiavelli;P. Nolan;B. Nyakó;C. Petrache;J. Sampson;H. Scraggs;T. Tornyi;R. Wadsworth;A. Walker;L. ZolnaiI., Kuti; J., Timár; D., Sohler; E., Paul; K., Starosta; A., Astier; D., Bazzacco; P., Bednarczyk; A., Boston; N., Buforn; H., Chantler; C., Chiara; R., Clark; M., Cromaz; M., Descovich; Dombrádi, Z. s.; P., Fallon; D., Fossan; C., Fox; A., Gizon; J., Gizon; A., Hecht; N., Kintz; T., Koike; I., Lee; Lunardi, Santo; A., Macchiavelli; P., Nolan; B., Nyakó; C., Petrache; J., Sampson; H., Scraggs; T., Tornyi; R., Wadsworth; A., Walker; L., Zolna