New supersymmetry classification of nuclear levels in Pt195
Por:
Mauthofer A., Steler K., Gerl J., Ele Th.W., Happ Th., Eckert G., Faestermann T., Frank A., Van Isacker P.
Publicada:
1 ene 1986
Resumen:
The Coulomb excitation of Pt195 by 125 MeV S32 projectiles has been studied using ray spectroscopic techniques. On the basis of supersymmetry considerations, the observation of new levels, B(E2) ratios, and B(E2) values, a new assignment of negative-parity states within the U(6/12) multi-j supersymmetry scheme of the interacting-boson-fermion model is proposed for the 1,2,3-( 1,2)=7,0,0-(2, 0) and 6,1,0-(2,0) quadruplets. With this classification the simultaneous description of the low lying Pt195 and Pt194 levels within the framework of the supersymmetry scheme is greatly improved. The predicted E2 branching ratios for the decay of the (1,2)-L=(2,0)-4 levels in Pt195 are well reproduced, while for the decay of the (2,0)-2 levels discrepancies occur in both the new and the old classification. © 1986 The American Physical Society.
Filiaciones:
Mauthofer A.:
Institut F¨r Kernphysik, Universitat Frankfurt, Frankfurt am Main, Germany
Steler K.:
Institut F¨r Kernphysik, Universitat Frankfurt, Frankfurt am Main, Germany
Gerl J.:
Institut F¨r Kernphysik, Universitat Frankfurt, Frankfurt am Main, Germany
Ele Th.W.:
Institut F¨r Kernphysik, Universitat Frankfurt, Frankfurt am Main, Germany
Happ Th.:
Institut F¨r Kernphysik, Universitat Frankfurt, Frankfurt am Main, Germany
Eckert G.:
Institut F¨r Kernphysik, Universitat Frankfurt, Frankfurt am Main, Germany
Faestermann T.:
Technische Universitat M¨nchen, M¨nchen, Germany
Frank A.:
Physics Department, Yale University, New Haven, CT 06511, United States
Van Isacker P.:
University of Sussex, Brighton, Sussex BN1H, United Kingdom
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