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Heavy-ion In-beam Studies of the Nucleus 87Nb

Jungclaus, A.; Lieb, K. P.; Gross, C. J.; Heese, J.; Rudolph, Dirk LU ; Blumenthal, D. J.; Chowdhury, P.; Ennis, P. J.; Lister, C. J. and Winter, C., et al. (1991) In Zeitschrift für Physik A Hadrons and Nuclei 340(2). p.125-139
Abstract
High spin states in the transitional nucleus Nb-87 up to 14 MeV excitation have been established for the first time via the reactions Ca-40(Cr-50, 3p)Nb-87 and Ni-58(S-32, 3p)Nb-87. The Nb-87 gamma-radiations have been identified through gamma-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, gamma-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 aligned g9/2 nucleons. Moderately... (More)
High spin states in the transitional nucleus Nb-87 up to 14 MeV excitation have been established for the first time via the reactions Ca-40(Cr-50, 3p)Nb-87 and Ni-58(S-32, 3p)Nb-87. The Nb-87 gamma-radiations have been identified through gamma-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, gamma-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 aligned g9/2 nucleons. Moderately enhanced E2 in-band transitions of 13-48 W.u. as well as several weak E2 yrast transitions connecting bands with different quasiparticle numbers have been found. Similarities with respect to the N = 46 isotones Rb-83, Sr-84, Y-85, Zr-86 and 88Mo are discussed. PACS: 21.10.R; 23.20.ck; 27.50. + e (Less)
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Zeitschrift für Physik A Hadrons and Nuclei
volume
340
issue
2
pages
125 - 139
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Springer
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  • scopus:0000809517
ISSN
0939-7922
DOI
10.1007/BF01303824
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English
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471b2e17-b8c6-4344-a340-bc3e94dfa7f3 (old id 3963959)
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@article{471b2e17-b8c6-4344-a340-bc3e94dfa7f3,
  abstract     = {High spin states in the transitional nucleus Nb-87 up to 14 MeV excitation have been established for the first time via the reactions Ca-40(Cr-50, 3p)Nb-87 and Ni-58(S-32, 3p)Nb-87. The Nb-87 gamma-radiations have been identified through gamma-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, gamma-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 aligned g9/2 nucleons. Moderately enhanced E2 in-band transitions of 13-48 W.u. as well as several weak E2 yrast transitions connecting bands with different quasiparticle numbers have been found. Similarities with respect to the N = 46 isotones Rb-83, Sr-84, Y-85, Zr-86 and 88Mo are discussed. PACS: 21.10.R; 23.20.ck; 27.50. + e},
  author       = {Jungclaus, A. and Lieb, K. P. and Gross, C. J. and Heese, J. and Rudolph, Dirk and Blumenthal, D. J. and Chowdhury, P. and Ennis, P. J. and Lister, C. J. and Winter, C. and Eberth, J. and Skoda, S. and Bentley, M. A. and Gelletly, W. and Varley, B. J.},
  issn         = {0939-7922},
  language     = {eng},
  number       = {2},
  pages        = {125--139},
  publisher    = {Springer},
  series       = {Zeitschrift für Physik A Hadrons and Nuclei},
  title        = {Heavy-ion In-beam Studies of the Nucleus 87Nb},
  url          = {http://dx.doi.org/10.1007/BF01303824},
  volume       = {340},
  year         = {1991},
}