The European Physical Journal A

, Volume 8, Issue 1, pp 41–58 | Cite as

Level structure of 123Cs observed from 123Ba decay and described using the IBFM and CQPC models

  • A. Gizon
  • B. Weiss
  • P. Paris
  • C. F. Liang
  • J. Genevey
  • J. Gizon
  • V. Barci
  • Gh. Căta-Danil
  • J. S. Dionisio
  • J. M. Lagrange
  • M. Pautrat
  • J. Vanhorenbeeck
  • Ch. Vieu
  • L. Zolnai
  • J. M. Arias
  • J. Barea
  • Ch. Droste


The decay of 123Ba to 123Cs has been studied with mass-separated sources. Singles spectra of γ-rays, X-rays and conversion electrons as well as γ - γ - t, γ - e - t, and X - e - t coincidences were recorded. A level scheme of 123Cs has been constructed including 26 new excited states and 82 transitions. The existence of a I π = 11/2, T 1/2 = 1.7 s isomer, bandhead of the h 11/2 band, is confirmed. Its excitation energy equals 156.3 keV. A new T 1/2 = 114 ns isomer has been established at 232 keV using the in-beam recoil catcher technique. It is assigned to the I π = 9/2+ bandhead of the gpg 9/2 band. Collective bands based on the 1/2+ ground state and first 3/2+ excited state are proposed. The level structure is described in the frame of the interacting boson-fermion and core-quasiparticle coupling models.


21.10.Re Collective levels 23.20.Lv Gamma transitions and level energies 23.20.Nx Internal conversion 21.60.Ev Collective models 27.60.+j 90 ≤ A ≤ 149 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    R. Bengtsson, P. Möller, J.R. Nix, J.Y. Zhang, Phys. Scripta 29, 402 (1984)Google Scholar
  2. 2.
    R. Wyss, F. Lidén, J. Nyberg, A. Johnson, D.J.G. Love, A.H. Nelson, D.W. Banes, J. Simpson, A. Kirwan, R. Bengtsson, Nucl. Phys. A 503, 244 (1989)CrossRefADSGoogle Scholar
  3. 3.
    F. Lidén, B. Cederwall, P. Ahonen, D.W. Banes, B. Fant, J. Gascon, L. Hildingsson, A. Johnson, S. Juutinen, A. Kirwan, D.J.G. Love, S. Mitarai, J. Mukai, A.H. Nelson, J. Nyberg, J. Simpson, R. Wyss, Nucl. Phys. A 550, 365 (1992)CrossRefADSGoogle Scholar
  4. 4.
    P. Möller, J.R. Nix, W.D. Myers, W.J. Swiatecki, Atom. Data and Nucl. Data Tables 59, 185 (1995)CrossRefADSGoogle Scholar
  5. 5.
    N. Yoshikawa, J. Gizon, A. Gizon, J. Phys. Lett. 39, L102 (1978)CrossRefGoogle Scholar
  6. 6.
    U. Garg, T.P. Sjoreen, D.B. Fossan, Phys. Rev. C 19, 217 (1979)CrossRefADSGoogle Scholar
  7. 7.
    J.R. Hughes, D.B. Fossan, D.R. La Fosse, Y. Liang, P. Vaska, M.P. Waring, J.Y. Zhang, Phys. Rev. C 45, 2177 (1992)CrossRefADSGoogle Scholar
  8. 8.
    Ch. Droste, W. Neubert, S. Chojnacki, T. Morek, K.F. Alexander, Z. Wilhelmi, Nucl. Phys. A 192, 595 (1972)CrossRefADSGoogle Scholar
  9. 9.
    G. Beyer, R. Arlt, E. Hermann, A. Jasinski, O. Knotek, G. Musiol, H.G. Ortlepp, H.V. Siebert, J. Tyrroff, Nucl. Phys. A 260, 269 (1976)CrossRefADSGoogle Scholar
  10. 10.
    R. Arlt, A. Jasinski, W. Neubert, H.G. Ortlepp, Acta Phys. Pol. B 6, 433 (1976)Google Scholar
  11. 11.
    G. Marguier, A. Charvet, J. Genevey, C. Richard-Serre, A. Knipper, G. Walter, the Isolde Collaboration, J. Phys. G: Nucl. Phys. 7, 101 (1981)CrossRefADSGoogle Scholar
  12. 12.
    C. Ekström, S. Ingelman, G. Wannberg, M. Skarestad, Nucl. Phys. A 292, 144 (1977)CrossRefADSGoogle Scholar
  13. 13.
    C. Thibault, F. Touchard, S. Buttenbach, R. Klapisch, M. de Saint Simon, H.T. Duong, P. Jacquinot, P. Juncar, S. Liberman, P. Pillet, J. Pinard, J.L. Vialle, A. Pesnelle, G. Huber, the Isolde Collaboration, Nucl. Phys. A 367, 1 (1981)CrossRefADSGoogle Scholar
  14. 14.
    S. Ohya, T. Tamura, Nucl. Data Sheets 70, 531 (1993)CrossRefADSGoogle Scholar
  15. 15.
    J.C. Putaux, J. Obert, L. Kotfila, B. Roussière, J. Sauvage, C.F. Liang, A. Peghaire, P. Paris, J. Giroux, the Isolde Collaboration, Nucl. Instr. and Meth. 186, 321 (1981)CrossRefADSGoogle Scholar
  16. 16.
    P. Paris, C.F. Liang, D. Lecouturier, M. Arianer, J. Obert, A. Carnetta, A. Ferro, J. Fournet, J.C. Putaux, J.L. Sarrouy, Nucl. Instr. and Meth. 186, 91 (1981)CrossRefADSGoogle Scholar
  17. 17.
    J.M. Lagrange, M. Pautrat, J.S. Dionisio, Ch. Vieu, J. Vanhorenbeeck, Nucl. Instr. and Meth. in Phys. Res. A 271, 527 (1988)CrossRefADSGoogle Scholar
  18. 18.
    B. Weiss, C.F. Liang, P. Paris, A. Peghaire, A. Gizon, Z. Phys. A 313, 173 (1983)CrossRefGoogle Scholar
  19. 19.
    D.D. Bogdanov, A.V. Demyanov, V.A. Karnaukhov, M. Nowicki, L.A. Petrov, J. Voboril, A. Płochocki, Nucl. Phys. A 307, 412 (1978)ADSGoogle Scholar
  20. 20.
    Y. Liang, D.B. Fossan, J.R. Hughes, D.R. La Fosse, T. Lauritsen, R. Ma, E.S. Paul, P. Vaska, M.P. Waring, N. Xu, Phys. Rev. C 45, 1041 (1992)CrossRefADSGoogle Scholar
  21. 21.
    S. Törmänen, S. Juutinen, R. Julin, A. Lampinen, E. Mäkelá, M. Piiparinen, A. Savelius, A. Virtanen, G.B. Hageman, Ch. Droste, W. Karczmarczyk, T. Morek, J. Srebrny, K. Starosta, Nucl. Phys. A 613, 282 (1997)CrossRefADSGoogle Scholar
  22. 22.
    G. Audi, A.H. Wapstra, Nucl. Phys. A 565, 1 (1993) and A 595, 409 (1995)CrossRefADSGoogle Scholar
  23. 23.
    N.B. Gove, M.J. Martin, Nucl. Data Tables 10, 205 (1971)CrossRefADSGoogle Scholar
  24. 24.
    A. Osa, T. Ikuta, K. Kawade, H. Yamamoto, S. Ichikawa, J. Phys. Soc. Japan 65, 928 (1996)CrossRefADSGoogle Scholar
  25. 25.
    F. Ames et al., Nucl. Phys. A 651, 3 (1999)CrossRefADSGoogle Scholar
  26. 26.
    J. Genevey, G. Marguier, A. Charvet, C. Richard-Serre, A. Knipper, J. Crawford, in Proceedings of the 4th International Conference on Nuclei far from Stability, Helsingör, 1981, report CERN 81-09, p.483Google Scholar
  27. 27.
    J.R. Hughes, D.B. Fossan, D.R. La Fosse, Y. Liang, P. Vaska, M.P. Waring, Phys. Rev. C 44, 2390 (1991)CrossRefADSGoogle Scholar
  28. 28.
    Y. Liang, E.S. Paul, N. Xu, D.B. Fossan, Phys. Rev. C 42, 890 (1990)Google Scholar
  29. 29.
    K. Kitao, N. Oshima, Nuclear Data Sheets 77, 1 (1996)CrossRefADSGoogle Scholar
  30. 30.
    L. Hildingsson, W. Klamra, Th. Lindblad, F. Lidén, Y. Liang, R. Ma, E.S. Paul, N. Xu, D.B. Fossan, J. Gascon, Z. Phys. A 340, 29 (1991)CrossRefADSGoogle Scholar
  31. 31.
    Y. Tendow, Nuclear Data Sheets 77, 631 (1996)CrossRefADSGoogle Scholar
  32. 32.
    Sun Huibin, Liu Yunzuo, Hu Dailing, Zhou Jiewen, Li Yuan, Z. Phys. A 336, 37 (1990)Google Scholar
  33. 33.
    N. Xu, Jing-ye Zhang, Y. Liang, R. Ma, E.S. Paul, D.B. Fossan, Phys. Rev. C 42, 1394 (1990)CrossRefADSGoogle Scholar
  34. 34.
    J.M. Arias, C.E. Alonso, R. Bijker, Nucl. Phys. A 445, 333 (1985)CrossRefADSGoogle Scholar
  35. 35.
    N. Yoshida, A. Gelberg, T. Otsuka, I. Wiedenhöver, H. Sagawa, P. von Brentano, Nucl. Phys. A 619, 65 (1997)CrossRefADSGoogle Scholar
  36. 36.
    G. Puddu, O. Scholten, T. Otsuka, Nucl. Phys. A 348, 109 (1980)CrossRefADSGoogle Scholar
  37. 37.
    A. Gizon, J. Genevey, D. Bucurescu, Gh. Căta-Danil, J. Gizon, J. Inchaouh, D. Barnéoud, T. von Egidy, C.F. Liang, B.M. Nyakó, P. Paris, I. Penev, A. Płochocki, E. Ruchowska, C.A. Ur, B. Weiss, L. Zolnai, Nucl. Phys. A 605, 301 (1996)CrossRefADSGoogle Scholar
  38. 38.
    M. Sambataro, O. Scholten, A.E.L. Dieperink and G. Piccitto, Nucl. Phys. A 423, 333 (1984)CrossRefADSGoogle Scholar
  39. 39.
    Ch. Droste, T. Morek, S.G. Rohozinski, D. Alber, H. Grawe and D. Chlebowska, J. Phys. G: Nucl. Part. Phys. 18, 1763 (1992)CrossRefADSGoogle Scholar
  40. 40.
    M.S. Dewey, H.E. Mahnke, P. Chowdhury, U. Garg, T.P. Sjoreen and D.B. Fossan, Phys. Rev. 18, 2061 (1978)CrossRefADSGoogle Scholar
  41. 41.
    A. Gizon, J. Genevey, B. Weiss, Gh. Căta-Danil, J. Gizon, D. Barnéoud, R. Béraud, D. Bucurescu, T. von Egidy, A. Emsallem, C.F. Liang, P. Paris, I. Penev, A. Płochocki, Z. Phys. A 359, 11 (1997) andreferences thereinCrossRefADSGoogle Scholar
  42. 42.
    P. Mukherjee, R. Bhattacharay, I. Mukherjee, Phys. Rev. C 24, 1810 (1981)CrossRefADSGoogle Scholar
  43. 43.
    Gh. Cata-Danil, D. Bucurescu, A. Gizon, J. Gizon, J. Phys. G: Nucl. Part. Phys. 20, 1051 (1994)CrossRefADSGoogle Scholar
  44. 44.
    D. Bucurescu, Gh. Cata-Danil, N.V. Zamfir, A. Gizon, J. Gizon, Phys. Rev. C 43, 2610 (1991)CrossRefADSGoogle Scholar
  45. 45.
    O. Scholten, N. Blasi, Nucl. Phys. A 380, 509 (1982)CrossRefADSGoogle Scholar
  46. 46.
    C.E. Alonso, J.M. Arias, M. Lozano, J. Phys. G: Nucl. Phys. 14, 877 (1988)CrossRefADSGoogle Scholar
  47. 47.
    K. Starosta, Ch. Droste, T. Morek, J. Srebrny, D.B. Fossan, D.R. LaFosse, H. Schnare, I. Thorslund, P. Vaska, M.P. Waring, W. Satuła, S.G. Rohoziński, R. Wyss, I.M. Hibbert, R. Wadsworth, K. Hauschild, C.W. Beausang, S.A. Forbes, P.J. Nolan, E.S. Paul, Phys. Rev. C 53, 137 (1996)CrossRefADSGoogle Scholar
  48. 48.
    F. Dönau and S. Frauendorf, J. Phys. Soc. Japan 44, 526 (1978) Suppl.Google Scholar
  49. 49.
    F. Dönau and U. Hagemann, Z. Phys. A293, 31 (1979)Google Scholar
  50. 50.
    T. Morek, K. Starosta, Ch. Droste, D. Fossan, G. Lane, J. Sears, J. Smith and P. Vaska, Eur. Phys. J. A3, 99 (1998)ADSGoogle Scholar

Copyright information

© Società Italiana di Fisica Springer-Verlag 2000

Authors and Affiliations

  • A. Gizon
    • 1
  • B. Weiss
    • 1
  • P. Paris
    • 2
  • C. F. Liang
    • 2
  • J. Genevey
    • 1
  • J. Gizon
    • 1
  • V. Barci
    • 1
  • Gh. Căta-Danil
    • 1
  • J. S. Dionisio
    • 2
  • J. M. Lagrange
    • 3
  • M. Pautrat
    • 3
  • J. Vanhorenbeeck
    • 4
  • Ch. Vieu
    • 2
  • L. Zolnai
    • 5
  • J. M. Arias
    • 6
  • J. Barea
    • 7
  • Ch. Droste
    • 8
  1. 1.Institut des Sciences NucléairesIN2P3-CNRS/Université Joseph FourierGrenoble-CedexFrance
  2. 2.CSNSMCampus OrsayFrance
  3. 3.Institut de Physique NucléaireOrsay-CedexFrance
  4. 4.I.A.A. Université Libre de BruxellesBoulevard du TriompheBrusselsBelgium
  5. 5.Institute of Nuclear ResearchDebrecenHungary
  6. 6.Departamento de Física Atómica Molecular y NuclearUniversidad de SevillaSevillaSpain
  7. 7.Departamento de Física AplicadaESII, Universidad de SevillaSevillaSpain
  8. 8.Institute of Experimental PhysicsWarsaw UniversityWarsawPoland

Personalised recommendations