New deformed states near the Z=50 closed shell: 51117Sb66.

作者: D. R. LaFosse , D. B. Fossan , J. R. Hughes , Y. Liang , P. Vaska

DOI: 10.1103/PHYSREVLETT.69.1332

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摘要: Three decoupled ({Delta}{ital I}=2) rotational bands have been observed to rise out of irregular spherical excitations in {sub 51}{sup 117}Sb at moderate spin. These are interpreted as resulting from low-lying {pi}{ital g}{sub 7/2}, {pi}d{sub 5/2}, and h}{sub 11/2} valence orbitals outside the {ital Z}=50 closed shell coupled deformed (({pi}{ital 7/2}){sup 2}{direct product}({pi}{ital 9/2}){sup {minus}2}){sup 116}Sn core state N}=66 midshell. The do not significantly influence either or shape; latter is regulated by {beta} which 7/2} intruder 9/2} levels cross. Two strongly I}=1) involving {minus}1}) were also observed.

参考文章(6)
R. E. Shroy, A. K. Gaigalas, G. Schatz, D. B. Fossan, High-spin states in odd-massSb113−119:ΔJ=1bands on92+proton-hole states Physical Review C. ,vol. 19, pp. 1324- 1343 ,(1979) , 10.1103/PHYSREVC.19.1324
M. Ionescu-Bujor, A. Iordăchescu, G. Pascovici, V. Sabaiduc, Quadrupole moments of the 232− and 7+ isomers in 117, 118Sb and the deformation induced by the 1g92−1 proton-hole intruder state Physics Letters B. ,vol. 200, pp. 259- 262 ,(1988) , 10.1016/0370-2693(88)90767-8
M. Ionescu-Bujor, A. Iordachescu, G. Pascovici, C. Stan-Sion, Investigation of a 290 ns 232− isomeric state in 117Sb and evidence for shape coexistence Nuclear Physics. ,vol. 466, pp. 317- 332 ,(1987) , 10.1016/0375-9474(87)90444-1
J. Bron, W.H.A. Hesselink, A. Van Poelgeest, J.J.A. Zalmstra, M.J. Uitzinger, H. Verheul, K. Heyde, M. Waroquier, H. Vincx, P. Van Isacker, Collective bands in even mass Sn isotopes Nuclear Physics A. ,vol. 318, pp. 335- 351 ,(1979) , 10.1016/0375-9474(79)90653-5
K Heyde, P Van Isacker, M Waroquier, JL Wood, RA Meyer, Coexistence in odd-mass nuclei Physics Reports. ,vol. 102, pp. 291- 393 ,(1983) , 10.1016/0370-1573(83)90085-6
A. K. Gaigalas, R. E. Shroy, G. Schatz, D. B. Fossan, Deformed 92 + States and ∆J=1 Rotational Bands in 113, 115, 117, 119 Sb Nuclei Physical Review Letters. ,vol. 35, pp. 555- 558 ,(1975) , 10.1103/PHYSREVLETT.35.555