Evidence for octupole correlations at high spins in neutron-deficient 110Te.

作者: E. S. Paul , H. R. Andrews , T. E. Drake , J. DeGraaf , V. P. Janzen

DOI: 10.1103/PHYSREVC.50.R534

关键词: DipoleParticle propertiesParity (physics)Direct productSpinsAtomic physicsYrastNeutronPhysicsNuclear reaction

摘要: States in neutron-deficient [sup 110]Te have been studied with the 58]Ni+[sup 58]Ni reaction at 250 MeV. An unusual feature is that, above spin 8[sup +], negative parity states become yrast. These are interpreted terms of a [nu][[ital h][sub 11/2][direct product][ital d][sub 5/2]] structure ([Delta][ital l]=[Delta][ital j]=3). For spins 15[sup [minus]], strong ([ital E]1) dipoles seen linking another band into negative-parity states. This taken as evidence for octupole correlations high spin.

参考文章(9)
J. Skalski, Octupolly deformed nuclei near 112Ba Physics Letters B. ,vol. 238, pp. 6- 10 ,(1990) , 10.1016/0370-2693(90)92090-6
S. L. Rugari, R. H. France, B. J. Lund, Z. Zhao, M. Gai, P. A. Butler, V. A. Holliday, A. N. James, G. D. Jones, R. J. Poynter, R. J. Tanner, K. L. Ying, J. Simpson, Broken reflection symmetry inXe114 Physical Review C. ,vol. 48, pp. 2078- 2081 ,(1993) , 10.1103/PHYSREVC.48.2078
K.S. Krane, R.M. Steffen, R.M. Wheeler, Directional correlations of gamma radiations emitted from nuclear states oriented by nuclear reactions or cryogenic methods Atomic Data and Nuclear Data Tables. ,vol. 11, pp. 351- 406 ,(1973) , 10.1016/S0092-640X(73)80016-6
D. Ward, V.P. Janzen, H.R. Andrews, D.C. Radford, G.C. Ball, D. Horn, J.C. Waddington, J.K. Johansson, F. Banville, J. Gascon, S. Monaro, N. Nadon, S. Pilotte, D. Prevost, P. Taras, R. Wyss, Gamma-ray spectroscopy of 126Ba Nuclear Physics. ,vol. 529, pp. 315- 362 ,(1991) , 10.1016/0375-9474(91)90798-B
P. Tidemand-Petersson, R. Kirchner, O. Klepper, E. Roeckl, D. Schardt, A. Płochocki, J. Żylicz, β-delayed particle emission from neutron-deficient Te, I, Xe, Cs and Ba isotopes Nuclear Physics. ,vol. 437, pp. 342- 366 ,(1985) , 10.1016/S0375-9474(85)90094-6
T Lönnroth, A Virtanen, J Hattula, Coexistence of Vibrational and Quasiparticle Structures in Neutron-Deficient 114,115,116,117Te Physica Scripta. ,vol. 34, pp. 682- 690 ,(1986) , 10.1088/0031-8949/34/6A/024
P. Chowdhury, W. F. Piel, D. B. Fossan, Collective properties of1g92proton-hole excitations: High-spin states inTe116,118,120,122andXe120nuclei Physical Review C. ,vol. 25, pp. 813- 827 ,(1982) , 10.1103/PHYSREVC.25.813
P.A. Butler, W. Nazarewicz, Intrinsic dipole moments in reflection-asymmetric nuclei Nuclear Physics. ,vol. 533, pp. 249- 268 ,(1991) , 10.1016/0375-9474(91)90489-S
R. Wyss, J. Nyberg, A. Johnson, R. Bengtsson, W. Nazarewicz, Highly deformed intruder bands in the A≈130 mass region Physics Letters B. ,vol. 215, pp. 211- 217 ,(1988) , 10.1016/0370-2693(88)91422-0