Abstract
The structure of 192Pb has been investigated using the 173Yb(24Mg, 5n) reaction at Eb = 132 MeV. The level scheme has been extended up to an excitation energy of 7 MeV and a spin of 23 h{stroke}. Two collective bands of levels linked by M1 transitions and four groups of states of non-collective character have been observed. Based on comparison with experimental data on odd-A Tl isotopes and with cranked shell-model calculations assuming an oblate shape, the collective Ml bands are interpreted as having an underlying proton 2-quasiparticle configuration coupled to a pair of rotation-aligned i 13 2 neutrons. The four groups of non-collective level-sequences are understood as 4-quasiparticle excitations associated with aligned neutron 2-quasiparticle states that involve a mixture of neutron and proton degrees of freedom.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 61-87 |
| Number of pages | 27 |
| Journal | Nuclear Physics, Section A |
| Volume | 562 |
| Issue number | 1 |
| DOIs | |
| State | Published - Sep 13 1993 |
| Externally published | Yes |
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Keywords
- Nuclear reactions
ASJC Scopus subject areas
- Nuclear and High Energy Physics
Cite this
Collective and quasiparticle structures in 192Pb. / Plompen, A. J M; Harakeh, M. N.; Hesselink, W. H A; van 't Hof, G.; Kalantar-Nayestanaki, N.; van Schagen, J. P S; Carpenter, M. P.; Ahmad, I.; Bearden, I. G.; Janssens, R. V F; Khoo, T. L.; Lauritsen, T.; Liang, Yun; Garg, U.; Reviol, W.; Ye, D.
In: Nuclear Physics, Section A, Vol. 562, No. 1, 13.09.1993, p. 61-87.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Collective and quasiparticle structures in 192Pb
AU - Plompen, A. J M
AU - Harakeh, M. N.
AU - Hesselink, W. H A
AU - van 't Hof, G.
AU - Kalantar-Nayestanaki, N.
AU - van Schagen, J. P S
AU - Carpenter, M. P.
AU - Ahmad, I.
AU - Bearden, I. G.
AU - Janssens, R. V F
AU - Khoo, T. L.
AU - Lauritsen, T.
AU - Liang, Yun
AU - Garg, U.
AU - Reviol, W.
AU - Ye, D.
PY - 1993/9/13
Y1 - 1993/9/13
N2 - The structure of 192Pb has been investigated using the 173Yb(24Mg, 5n) reaction at Eb = 132 MeV. The level scheme has been extended up to an excitation energy of 7 MeV and a spin of 23 h{stroke}. Two collective bands of levels linked by M1 transitions and four groups of states of non-collective character have been observed. Based on comparison with experimental data on odd-A Tl isotopes and with cranked shell-model calculations assuming an oblate shape, the collective Ml bands are interpreted as having an underlying proton 2-quasiparticle configuration coupled to a pair of rotation-aligned i 13 2 neutrons. The four groups of non-collective level-sequences are understood as 4-quasiparticle excitations associated with aligned neutron 2-quasiparticle states that involve a mixture of neutron and proton degrees of freedom.
AB - The structure of 192Pb has been investigated using the 173Yb(24Mg, 5n) reaction at Eb = 132 MeV. The level scheme has been extended up to an excitation energy of 7 MeV and a spin of 23 h{stroke}. Two collective bands of levels linked by M1 transitions and four groups of states of non-collective character have been observed. Based on comparison with experimental data on odd-A Tl isotopes and with cranked shell-model calculations assuming an oblate shape, the collective Ml bands are interpreted as having an underlying proton 2-quasiparticle configuration coupled to a pair of rotation-aligned i 13 2 neutrons. The four groups of non-collective level-sequences are understood as 4-quasiparticle excitations associated with aligned neutron 2-quasiparticle states that involve a mixture of neutron and proton degrees of freedom.
KW - Nuclear reactions
UR - http://www.scopus.com/inward/record.url?scp=0009980639&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0009980639&partnerID=8YFLogxK
U2 - 10.1016/0375-9474(93)90032-S
DO - 10.1016/0375-9474(93)90032-S
M3 - Article
AN - SCOPUS:0009980639
VL - 562
SP - 61
EP - 87
JO - Nuclear Physics A
JF - Nuclear Physics A
SN - 0375-9474
IS - 1
ER -