Collective oblate bands in Pb196

J. R. Hughes, Yun Liang, R. V F Janssens, A. Kuhnert, J. A. Becker, I. Ahmad, I. G. Bearden, M. J. Brinkman, J. Burde, M. P. Carpenter, J. A. Cizewski, P. J. Daly, M. A. Deleplanque, R. M. Diamond, J. E. Draper, C. Duyar, B. Fornal, U. Garg, Z. W. Grabowski, E. A. HenryR. G. Henry, W. Hesselink, N. Kalantar-Nayestanaki, W. H. Kelly, T. L. Khoo, T. Lauritsen, R. H. Mayer, D. Nissius, J. R B Oliveira, A. J M Plompen, W. Reviol, E. Rubel, F. Soramel, F. S. Stephens, M. A. Stoyer, D. Vo, T. F. Wang

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

Evidence for collective oblate behavior in Pb196 is presented. One irregular and two regular bands of M1 transitions have been observed following the Er170(30Si,4n) and Yb176(26Mg,6n) reactions. Transitions linking the most intense regular band to the low-lying negative-parity yrast levels are observed, establishing excitation energies, spins, and probable parities of the band members. In contrast, no such transitions have been found for the irregular band and the weaker regular band. The bands are interpreted as corresponding to collective oblate rotation, arising mainly from deformation-aligned high-j, shape-driving quasiproton excitations across the Z=82 shell gap, coupled to rotation-aligned quasineutrons.

Original languageEnglish (US)
JournalPhysical Review C
Volume47
Issue number4
DOIs
StatePublished - 1993
Externally publishedYes

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parity
excitation
energy

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Nuclear and High Energy Physics

Cite this

Hughes, J. R., Liang, Y., Janssens, R. V. F., Kuhnert, A., Becker, J. A., Ahmad, I., ... Wang, T. F. (1993). Collective oblate bands in Pb196. Physical Review C, 47(4). https://doi.org/10.1103/PhysRevC.47.R1337

Collective oblate bands in Pb196. / Hughes, J. R.; Liang, Yun; Janssens, R. V F; Kuhnert, A.; Becker, J. A.; Ahmad, I.; Bearden, I. G.; Brinkman, M. J.; Burde, J.; Carpenter, M. P.; Cizewski, J. A.; Daly, P. J.; Deleplanque, M. A.; Diamond, R. M.; Draper, J. E.; Duyar, C.; Fornal, B.; Garg, U.; Grabowski, Z. W.; Henry, E. A.; Henry, R. G.; Hesselink, W.; Kalantar-Nayestanaki, N.; Kelly, W. H.; Khoo, T. L.; Lauritsen, T.; Mayer, R. H.; Nissius, D.; Oliveira, J. R B; Plompen, A. J M; Reviol, W.; Rubel, E.; Soramel, F.; Stephens, F. S.; Stoyer, M. A.; Vo, D.; Wang, T. F.

In: Physical Review C, Vol. 47, No. 4, 1993.

Research output: Contribution to journalArticle

Hughes, JR, Liang, Y, Janssens, RVF, Kuhnert, A, Becker, JA, Ahmad, I, Bearden, IG, Brinkman, MJ, Burde, J, Carpenter, MP, Cizewski, JA, Daly, PJ, Deleplanque, MA, Diamond, RM, Draper, JE, Duyar, C, Fornal, B, Garg, U, Grabowski, ZW, Henry, EA, Henry, RG, Hesselink, W, Kalantar-Nayestanaki, N, Kelly, WH, Khoo, TL, Lauritsen, T, Mayer, RH, Nissius, D, Oliveira, JRB, Plompen, AJM, Reviol, W, Rubel, E, Soramel, F, Stephens, FS, Stoyer, MA, Vo, D & Wang, TF 1993, 'Collective oblate bands in Pb196', Physical Review C, vol. 47, no. 4. https://doi.org/10.1103/PhysRevC.47.R1337
Hughes JR, Liang Y, Janssens RVF, Kuhnert A, Becker JA, Ahmad I et al. Collective oblate bands in Pb196. Physical Review C. 1993;47(4). https://doi.org/10.1103/PhysRevC.47.R1337
Hughes, J. R. ; Liang, Yun ; Janssens, R. V F ; Kuhnert, A. ; Becker, J. A. ; Ahmad, I. ; Bearden, I. G. ; Brinkman, M. J. ; Burde, J. ; Carpenter, M. P. ; Cizewski, J. A. ; Daly, P. J. ; Deleplanque, M. A. ; Diamond, R. M. ; Draper, J. E. ; Duyar, C. ; Fornal, B. ; Garg, U. ; Grabowski, Z. W. ; Henry, E. A. ; Henry, R. G. ; Hesselink, W. ; Kalantar-Nayestanaki, N. ; Kelly, W. H. ; Khoo, T. L. ; Lauritsen, T. ; Mayer, R. H. ; Nissius, D. ; Oliveira, J. R B ; Plompen, A. J M ; Reviol, W. ; Rubel, E. ; Soramel, F. ; Stephens, F. S. ; Stoyer, M. A. ; Vo, D. ; Wang, T. F. / Collective oblate bands in Pb196. In: Physical Review C. 1993 ; Vol. 47, No. 4.
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AU - Liang, Yun

AU - Janssens, R. V F

AU - Kuhnert, A.

AU - Becker, J. A.

AU - Ahmad, I.

AU - Bearden, I. G.

AU - Brinkman, M. J.

AU - Burde, J.

AU - Carpenter, M. P.

AU - Cizewski, J. A.

AU - Daly, P. J.

AU - Deleplanque, M. A.

AU - Diamond, R. M.

AU - Draper, J. E.

AU - Duyar, C.

AU - Fornal, B.

AU - Garg, U.

AU - Grabowski, Z. W.

AU - Henry, E. A.

AU - Henry, R. G.

AU - Hesselink, W.

AU - Kalantar-Nayestanaki, N.

AU - Kelly, W. H.

AU - Khoo, T. L.

AU - Lauritsen, T.

AU - Mayer, R. H.

AU - Nissius, D.

AU - Oliveira, J. R B

AU - Plompen, A. J M

AU - Reviol, W.

AU - Rubel, E.

AU - Soramel, F.

AU - Stephens, F. S.

AU - Stoyer, M. A.

AU - Vo, D.

AU - Wang, T. F.

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N2 - Evidence for collective oblate behavior in Pb196 is presented. One irregular and two regular bands of M1 transitions have been observed following the Er170(30Si,4n) and Yb176(26Mg,6n) reactions. Transitions linking the most intense regular band to the low-lying negative-parity yrast levels are observed, establishing excitation energies, spins, and probable parities of the band members. In contrast, no such transitions have been found for the irregular band and the weaker regular band. The bands are interpreted as corresponding to collective oblate rotation, arising mainly from deformation-aligned high-j, shape-driving quasiproton excitations across the Z=82 shell gap, coupled to rotation-aligned quasineutrons.

AB - Evidence for collective oblate behavior in Pb196 is presented. One irregular and two regular bands of M1 transitions have been observed following the Er170(30Si,4n) and Yb176(26Mg,6n) reactions. Transitions linking the most intense regular band to the low-lying negative-parity yrast levels are observed, establishing excitation energies, spins, and probable parities of the band members. In contrast, no such transitions have been found for the irregular band and the weaker regular band. The bands are interpreted as corresponding to collective oblate rotation, arising mainly from deformation-aligned high-j, shape-driving quasiproton excitations across the Z=82 shell gap, coupled to rotation-aligned quasineutrons.

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