Multiparticle excitations in 194Pb

M. Kaci; M. G. Porquet; I. Deloncle; M. Aiche; F. Azaiez; G. Bastin; C. W. Beausang; C. Bourgeois; R. M. Clark; R. Duffait; J. Duprat; B. J.P. Gall; F. Hannachi; K. Hauschild; M. J. Joyce; A. Korichi; Y. Le Coz; M. Meyer; E. S. Paul; N. Perrin; N. Poffé; N. Redon; C. Schück; H. Sergolle; J. F. Sharpey-Schafer; J. Simpson; A. G. Smith; R. Wadsworth

doi:10.1016/S0375-9474(01)01225-8

Multiparticle excitations in ¹⁹⁴Pb

M. Kaci^*, M. G. Porquet, I. Deloncle, M. Aiche, F. Azaiez, G. Bastin, C. W. Beausang, C. Bourgeois, R. M. Clark, R. Duffait, J. Duprat, B. J.P. Gall, F. Hannachi, K. Hauschild, M. J. Joyce, A. Korichi, Y. Le Coz, M. Meyer, E. S. Paul, N. PerrinN. Poffé, N. Redon, C. Schück, H. Sergolle, J. F. Sharpey-Schafer, J. Simpson, A. G. Smith, R. Wadsworth

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

High-spin states of ¹⁹⁴Pb have been populated by the reaction ¹⁸⁴W(¹⁶O, 6n) at 113 MeV beam energy and studied using the EUROGAM-1 array. The level scheme has been extended up to spin of 33 ℏ and excitation energy of 11.1 MeV. The high-spin part of the level scheme is dominated by bands of dipole transitions. New dipole bands have been observed and the configurations of their band heads are discussed. Besides the well-known coupling of the K^π = 11^- two-proton state to several νi_13/2 rotation-aligned neutron states, the K^π = 8⁺ two-proton state is also involved. Such a coupling is identified for the first time in a lead isotope. Moreover, the K^π = 11 ^- two-proton state is coupled to the rotation-aligned proton pair (πh_11/22). Thus many multiparticle configurations involving all the high-j subshells located around the proton and neutron Fermi levels, πh_11/2, πh_9/2, πi_13/2, and νi _13/2 have been identified in this nucleus.

Original language	English
Pages (from-to)	3-24
Number of pages	22
Journal	Nuclear Physics A
Volume	697
Issue number	1-2
DOIs	https://doi.org/10.1016/S0375-9474(01)01225-8
Publication status	Published - 14 Jan 2002

Keywords

Nuclear reactions )W(O, 6n)Pb, E = 113 MeV

Access to Document

10.1016/S0375-9474(01)01225-8

Cite this

Kaci, M., Porquet, M. G., Deloncle, I., Aiche, M., Azaiez, F., Bastin, G., Beausang, C. W., Bourgeois, C., Clark, R. M., Duffait, R., Duprat, J., Gall, B. J. P., Hannachi, F., Hauschild, K., Joyce, M. J., Korichi, A., Le Coz, Y., Meyer, M., Paul, E. S., ... Wadsworth, R. (2002). Multiparticle excitations in ¹⁹⁴Pb. Nuclear Physics A, 697(1-2), 3-24. https://doi.org/10.1016/S0375-9474(01)01225-8

@article{bf46ae9fffa249d8b6e40f81692a3656,

title = "Multiparticle excitations in 194Pb",

abstract = "High-spin states of 194Pb have been populated by the reaction 184W(16O, 6n) at 113 MeV beam energy and studied using the EUROGAM-1 array. The level scheme has been extended up to spin of 33 ℏ and excitation energy of 11.1 MeV. The high-spin part of the level scheme is dominated by bands of dipole transitions. New dipole bands have been observed and the configurations of their band heads are discussed. Besides the well-known coupling of the Kπ = 11- two-proton state to several νi13/2 rotation-aligned neutron states, the Kπ = 8+ two-proton state is also involved. Such a coupling is identified for the first time in a lead isotope. Moreover, the Kπ = 11 - two-proton state is coupled to the rotation-aligned proton pair (πh11/22). Thus many multiparticle configurations involving all the high-j subshells located around the proton and neutron Fermi levels, πh11/2, πh9/2, πi13/2, and νi 13/2 have been identified in this nucleus.",

keywords = "Nuclear reactions )W(O, 6n)Pb, E = 113 MeV",

author = "M. Kaci and Porquet, {M. G.} and I. Deloncle and M. Aiche and F. Azaiez and G. Bastin and Beausang, {C. W.} and C. Bourgeois and Clark, {R. M.} and R. Duffait and J. Duprat and Gall, {B. J.P.} and F. Hannachi and K. Hauschild and Joyce, {M. J.} and A. Korichi and {Le Coz}, Y. and M. Meyer and Paul, {E. S.} and N. Perrin and N. Poff{\'e} and N. Redon and C. Sch{\"u}ck and H. Sergolle and Sharpey-Schafer, {J. F.} and J. Simpson and Smith, {A. G.} and R. Wadsworth",

year = "2002",

month = jan,

day = "14",

doi = "10.1016/S0375-9474(01)01225-8",

language = "English",

volume = "697",

pages = "3--24",

journal = "Nuclear Physics A",

issn = "0375-9474",

publisher = "Elsevier",

number = "1-2",

}

Kaci, M, Porquet, MG, Deloncle, I, Aiche, M, Azaiez, F, Bastin, G, Beausang, CW, Bourgeois, C, Clark, RM, Duffait, R, Duprat, J, Gall, BJP, Hannachi, F, Hauschild, K, Joyce, MJ, Korichi, A, Le Coz, Y, Meyer, M, Paul, ES, Perrin, N, Poffé, N, Redon, N, Schück, C, Sergolle, H, Sharpey-Schafer, JF, Simpson, J, Smith, AG & Wadsworth, R 2002, 'Multiparticle excitations in ¹⁹⁴Pb', Nuclear Physics A, vol. 697, no. 1-2, pp. 3-24. https://doi.org/10.1016/S0375-9474(01)01225-8

TY - JOUR

T1 - Multiparticle excitations in 194Pb

AU - Kaci, M.

AU - Porquet, M. G.

AU - Deloncle, I.

AU - Aiche, M.

AU - Azaiez, F.

AU - Bastin, G.

AU - Beausang, C. W.

AU - Bourgeois, C.

AU - Clark, R. M.

AU - Duffait, R.

AU - Duprat, J.

AU - Gall, B. J.P.

AU - Hannachi, F.

AU - Hauschild, K.

AU - Joyce, M. J.

AU - Korichi, A.

AU - Le Coz, Y.

AU - Meyer, M.

AU - Paul, E. S.

AU - Perrin, N.

AU - Poffé, N.

AU - Redon, N.

AU - Schück, C.

AU - Sergolle, H.

AU - Sharpey-Schafer, J. F.

AU - Simpson, J.

AU - Smith, A. G.

AU - Wadsworth, R.

PY - 2002/1/14

Y1 - 2002/1/14

N2 - High-spin states of 194Pb have been populated by the reaction 184W(16O, 6n) at 113 MeV beam energy and studied using the EUROGAM-1 array. The level scheme has been extended up to spin of 33 ℏ and excitation energy of 11.1 MeV. The high-spin part of the level scheme is dominated by bands of dipole transitions. New dipole bands have been observed and the configurations of their band heads are discussed. Besides the well-known coupling of the Kπ = 11- two-proton state to several νi13/2 rotation-aligned neutron states, the Kπ = 8+ two-proton state is also involved. Such a coupling is identified for the first time in a lead isotope. Moreover, the Kπ = 11 - two-proton state is coupled to the rotation-aligned proton pair (πh11/22). Thus many multiparticle configurations involving all the high-j subshells located around the proton and neutron Fermi levels, πh11/2, πh9/2, πi13/2, and νi 13/2 have been identified in this nucleus.

AB - High-spin states of 194Pb have been populated by the reaction 184W(16O, 6n) at 113 MeV beam energy and studied using the EUROGAM-1 array. The level scheme has been extended up to spin of 33 ℏ and excitation energy of 11.1 MeV. The high-spin part of the level scheme is dominated by bands of dipole transitions. New dipole bands have been observed and the configurations of their band heads are discussed. Besides the well-known coupling of the Kπ = 11- two-proton state to several νi13/2 rotation-aligned neutron states, the Kπ = 8+ two-proton state is also involved. Such a coupling is identified for the first time in a lead isotope. Moreover, the Kπ = 11 - two-proton state is coupled to the rotation-aligned proton pair (πh11/22). Thus many multiparticle configurations involving all the high-j subshells located around the proton and neutron Fermi levels, πh11/2, πh9/2, πi13/2, and νi 13/2 have been identified in this nucleus.

KW - Nuclear reactions )W(O, 6n)Pb, E = 113 MeV

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U2 - 10.1016/S0375-9474(01)01225-8

DO - 10.1016/S0375-9474(01)01225-8

M3 - Article

AN - SCOPUS:0002451212

SN - 0375-9474

VL - 697

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EP - 24

JO - Nuclear Physics A

JF - Nuclear Physics A

IS - 1-2

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