Zeitschrift für Physik A Hadrons and Nuclei

, Volume 340, Issue 2, pp 125–139 | Cite as

Heavy-ion in-beam studies of the nucleus87Nb

  • A. Jungclaus
  • K. P. Lieb
  • C. J. Gross
  • J. Heese
  • D. Rudolph
  • D. J. Blumenthal
  • P. Chowdhury
  • P. J. Ennis
  • C. J. Lister
  • Ch. Winter
  • J. Eberth
  • S. Skoda
  • M. A. Bentley
  • W. Gelletly
  • B. J. Varley
Nuclear Structure and Reactions


High spin states in the transitional nucleus87Nb up to 14 MeV excitation have been established for the first time via the reactions40Ca(50Cr, 3p)87Nb and58Ni (32S, 3p)87Nb. The87Nbγ-radiations have been identified throughγ-ray spectra taken in coincidence with the evaporation residues detected in the Daresbury recoil separator or with multiple proton emission. Gamma-gamma coincidences, DCO ratios,γ-ray angular distributions and lifetimes have been measured. A total of some 100 transitions have been placed into a level scheme comprising of sixty states. The one-quasiparticle (1qp) bands of either parity and several other band-like structures have been identified, some containing alignedg9/2 nucleons. Moderately enhancedE2 in-band transitions of 13–48 W.u. as well as several weakE2 yrast transitions connecting bands with different quasiparticle numbers have been found. Similarities with respect to theN=46 isotones83Rb,84Sr,85Y,86Zr and88Mo are discussed.


21.10.R 27.50. + e 


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  1. 1.
    Nuclear structure of the Zirconium region, Eberth, J., Meyer, R.A., Sistemich, K. (eds.), Berlin, Heidelberg, New York: Springer 1988Google Scholar
  2. 2.
    Lieb, K.P., Lühmann, L., Wörmann, B.: In: Nuclei off the line of stability, Meyer, R.A., Brenner, D.S. (eds.), p. 235. Washington: American Chemical Society 1986; Lieb, K.P.: In: Nuclear reactors for developing countries and nuclear spectroscopy research, Medrano, G., Lieb, K.P. (eds.), p. 566. Singapore: World Scientific 1986Google Scholar
  3. 3.
    Gross, C.J., Heese, J., Lieb, K.P., Cristancho, F.: In: Selected topics in nuclear structure, Styczen, J. (ed.), p. 183. Singapore: World Scientific 1990Google Scholar
  4. 4.
    Lister, C.J., Ennis, P.J., Chishty, A.A., Varley, B.J., Gelletly, W., Price, H.G., James, A.N.: Phys. Rev. C42, R1191 (1990);Google Scholar
  5. 4a.
    Gelletly, W., Bentley, M.A., Price, H.G., Simpson, J., Gross, C.J., Durell, J.L., Varley, B.J., Skeppstedt, O., Rastikerdar, S.: Phys. Lett.253B, 287 (1991)Google Scholar
  6. 5.
    Lühmann, L., Lieb, K.P., Lister, C.J., Olness, J.W., Varley, B.J., Price, H.G.: Europhys. Lett.1, 623 (1986)Google Scholar
  7. 6.
    Gross, C.J., Heese, J., Lieb, K.P., Nazarewicz, W., Lister, C.J., Chishti, A.A., McNeill, C.J., Varley, B.J., Gelletly, W.: Nucl. Phys. A501, 367 (1989)Google Scholar
  8. 7.
    Broude, C., Gelberg, A., Goldberg, M.B., Goldring, G., Hass, M., Kistner, O.C., Zemel, A.: Phys. Lett.105B, 119 (1981);Google Scholar
  9. 7a.
    Kucharska, A.I., Billowes, J., Lister, C.J.: J. Phys. G: Nucl. Phys.15, 1039 (1989)Google Scholar
  10. 8.
    Raghavan, P.: At. Data Nucl. Data Tables42, 189 (1989)Google Scholar
  11. 9.
    Fieber, W., Bharuth-Ram, K., Heese, J., Cristancho, F., Gross, C.J., Lieb, K.P., Skoda, S., Eberth, J.: Z. Phys. A — Atomic Nuclei332, 363 (1989)Google Scholar
  12. 10.
    Hamilton, J.H., et al: Phys. Rev. Lett.32, 239 (1974); Heese, J., Lieb, K.P., Lühmann, L., Raether, F., Wörmann, B., Alber, D., Grawe, H., Eberth, J., Mylaeus, T.: Z. Phys. A — Atomic Nuclei325, 45 (1986)Google Scholar
  13. 11.
    Turcotte, R., Iafigliola, R., Moore, R.B., Lee, J.K.P.: Nucl. Phys. A198, 67 (1972); Della Negra, S., Jacquet, D., Beyec, Y. Le: Z. Phys. A — Atoms and Nuclei308, 243 (1982); Luksch, P., Tepel, J.W.: Nucl. Data Sheets27, 389 (1979)Google Scholar
  14. 12.
    Korschinek, G., Nolte, E., Hick, H., Miyano, K., Kutschera, W., Morinaga, H.: Z. Phys. A — Atoms and Nuclei281, 409 (1977)Google Scholar
  15. 13.
    Cordova Sanchez, P.: Doctoral thesis, Heidelberg 1985 (unpublished)Google Scholar
  16. 14.
    Gast, W., Dey, K., Gelberg, A., Kaup, U., Paar, V., Richter, R., Zell, K.O., Brentano, P. von: Phys. Rev. C22, 469 (1980)Google Scholar
  17. 15.
    Zhovliev, V.I., Kiptily, V.G., Kudayarov, M.F., Lemberg, I. Kh., Muminov, A.I., Pasternak, A.A., Rassadin, L.A.: Izv. Akad. Nauk. SSR49, 2096 (1985)Google Scholar
  18. 16.
    Diller, R., Lieb, K.P., Lühmann, L., Osipowicz, T., Sona, P., Wörmann, B., Cleemann, L., Eberth, J.: Z. Phys. A — Atoms and Nuclei321, 659 (1985)Google Scholar
  19. 17.
    Warburton, E.K., Lister, C.J., Olness, J.W., Haustein, P.E., Saha, S.K., Alburger, D.E., Becker, J.A., Dewberry, R.A., Naumann, R.A.: Phys. Rev. C31, 1184, 1211 (1985)Google Scholar
  20. 18.
    Avrigeanu, M., Avrigeanu, V., Bucurescu, D., Constantinescu, G., Ivascu, M., Pantelica, D., Tanabe, M., Zamfir, N.V.: J. Phys. G: Nucl. Phys.4, 261 (1984)Google Scholar
  21. 19.
    Gross, C.J., Weiszflog, M.: Private communicationGoogle Scholar
  22. 20.
    Dewald, A., Kaup, U., Gast, W., Gelberg, A., Schuh, H.-W., Zell, K.O., Brentano, P. von: Phys. Rev. C25, 226 (1982)Google Scholar
  23. 21.
    Chowdhury, P., Lister, C.J.: Private communicationGoogle Scholar
  24. 22.
    Iachello, F., Vretenaer, P.: (submitted for publication)Google Scholar
  25. 23.
    James, A.N., Morrison, T.P., Ying, K.L., Connell, K.H., Price, H.G., Simpson, J.: Nucl. Instrum. Methods A267, 144 (1988)Google Scholar
  26. 14.
    Simpson, J., Bates, M., Brookes, C., Nolan, P.J.: Nucl. Instrum. Methods A269, 209 (1988)Google Scholar
  27. 25.
    Gavron, A.: Phys. Rev. C21, 230 (1980)Google Scholar
  28. 26.
    Winter, Ch., Blumenthal, D.J., Chowdhury, P., Crowell, B., Ennis, P.J., Lister, C.J., Gross, C.J., Heese, J., Jungclaus, A., Lieb, K.P., Eberth, J., Skoda, S.: Phys. Lett. B258, 289 (1991)Google Scholar
  29. 27.
    Lister, C.J., Chowdhury, P., Ennis, P.J., Blumenthal, D., Winter, Ch.: (in preparation)Google Scholar
  30. 28.
    Cristancho, F., Lieb, K.P.: Nucl. Phys. A486, 353 (1988);Google Scholar
  31. 28a.
    Cristancho, F., Lieb, K.P., Heese, J., Gross, C.J., Fieber, W., Osipowicz, T., Ulbig, S., Bharuth-Ram, K., Skoda, S., Eberth, J., Dewald, A., Brentano, P. von: Nucl. Phys. A501, 118 (1989)Google Scholar
  32. 29.
    Schreckenbach, K.: program LEFIT, ILL (unpublished)Google Scholar
  33. 30.
    Krane, K.S., Steffen, R.M., Wheeler, R.M.: At. Data Nucl. Data Tables11, 354 (1973)Google Scholar
  34. 31.
    Rudolph, D., Gross, C.J., Lieb, K.P., Gelletly, W., Bentley, M.A., Simpson, J., Varley, B.J., Durell, J.L., Skeppstedt, O., Rastikerdar, S.: Z. Phys. A — Hadrons and Nuclei A338, 139 (1991)Google Scholar
  35. 32.
    Panqueva, J., Hellmeister, H.P., Lühmann, L., Lieb, K.P., Bergmeister, F.J., Brentano, P. von, Richter, R.: Nucl. Phys. A376, 367 (1982)Google Scholar
  36. 33.
    Hellmeister, J.H., Lühmann, L.: program CRONOS, Göttingen (unpublished)Google Scholar
  37. 34.
    Lister, C.J., Varley, B.J., Fieber, W., Heese, J., Lieb, K.P., Warburton, E.K., Olness, J.W.: Z. Phys. A — Atomic Nuclei329, 413 (1988)Google Scholar
  38. 35.
    Heese, J., Lieb, K.P., Ulbig, S., Wörmann, B., Billowes, J., Chishti, A.A., Gelletly, W., Lister, C.J., Varley, B.J.: Phys. Rev. C41, 603 (1990)Google Scholar
  39. 36.
    Rascher, R., Lieb, K.P., Uhrmacher, M.: Phys. Rev. C13, 1217 (1976)Google Scholar
  40. 37.
    Price, H.G., Lister, C.J., Varley, B.J., Gelletly, W., Olness, J.W.: Phys. Rev. Lett.51, 1842 (1983)Google Scholar
  41. 38.
    Fields, C.A., Boer, F.W.N. de, Kraushaar, J.J., Pratt, W.W.: Z. Phys. A — Atoms and Nuclei295, 365 (1980)Google Scholar
  42. 39.
    Diana, B.J., Boer, F.W.N. de, Fields, C.A.: Phys. A — Atoms and Nuclei306, 171 (1982); Oxorn, K., Mark, S.K., Kitching, J.E., Wong, S.S.M.: Z. Phys. A — Atoms and Nuclei321, 485 (1985)Google Scholar
  43. 40.
    Fields, C.A., Kraushaar, J.J., Ristinen, R.A., Samuelson, L.E.: Nucl. Phys. A326, 55 (1979)Google Scholar
  44. 41.
    Nazarewicz, W., Dudek, J., Bengtsson, R., Bengtsson, T., Ragnarsson, I.: Nucl. Phys. A435, 397 (1985)Google Scholar
  45. 42.
    Kemnitz, P., Ojeda, P., Döring, J., Funke, L., Kostov, L.K., Rotter, H., Well, E., Winter, G.: Nucl. Phys. A425, 493 (1984)Google Scholar
  46. 43.
    Brüssermann, S., Keinonen, J., Hellmeister, H.P., Lieb, K.P.: Z. Phys. A — Atoms and Nuclei304, 335 (1982); Keinonen, J., Lieb, K.P., Hellmeister, H.P., Bockisch, A., Emling, H.: Nucl. Phys. A376, 246 (1982); Brüssermann, S., Lieb, K.P., Sona, P., Emling, H., Grosse, E., Stachel, J.: Phys. Rev. C32, 1521 (1985)Google Scholar
  47. 44.
    Arima, A., Iachello, F.: Ann. Phys. (NY)99, 253 (1976);111, 201 (1978);123, 468 (1979)Google Scholar
  48. 45.
    Winter, G., Döring, J., Dönau, F., Funke, L.: Z. Phys. A — Atomic Nuclei334, 415 (1989)Google Scholar
  49. 46.
    Bengtsson, R., Frauendorf, S.: Nucl. Phys. A327, 139 (1979)Google Scholar
  50. 47.
    Bharuth-Ram, K., Billowes, J., Heese, J., Gross, C.J., Lieb, K.P., Martin, N., Skoda, S., Eberth, J.: Hyp. Int.59, 109 (1990); Phys. Lett. B252, 540 (1990)Google Scholar

Copyright information

© Springer-Verlag 1991

Authors and Affiliations

  • A. Jungclaus
    • 1
  • K. P. Lieb
    • 1
  • C. J. Gross
    • 1
  • J. Heese
    • 1
  • D. Rudolph
    • 1
  • D. J. Blumenthal
    • 2
  • P. Chowdhury
    • 2
  • P. J. Ennis
    • 2
  • C. J. Lister
    • 2
  • Ch. Winter
    • 2
  • J. Eberth
    • 3
  • S. Skoda
    • 3
  • M. A. Bentley
    • 4
  • W. Gelletly
    • 4
  • B. J. Varley
    • 5
  1. 1.II. Physikalisches InstitutUniversität GöttingenGöttingenFederal Republic of Germany
  2. 2.A.W. Wright Nuclear Structure LaboratoryYale UniversityNew HavenUSA
  3. 3.Institut für KernphysikUniversität zu KölnKöln 41Federal Republic of Germany
  4. 4.Daresbury LaboratorySERC Nuclear Structure FacilityWarringtonUK
  5. 5.University of ManchesterManchesterUK

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