Evidence for a two-phonon octupole vibrational state in208Pb

H. J. Wollersheim; P. Egelhof; H. Emling; J. Gerl; W. Henning; R. Holzmann; R. Schmidt; R. S. Simon; N. Martin; G. Eckert; Th W. Elze; K. Stelzer; R. Kulessa; G. Duchene; B. Haas; J. C. Merdinger; J. P. Vivien; J. de Boer; E. Hauber; K. Kaiser; P. von Brentano; R. Reinhardt; R. Wirowski; R. Julin; C. Fahlander; I. Thorslund; H. Kluge

doi:10.1007/BF01298473

Evidence for a two-phonon octupole vibrational state in²⁰⁸Pb

H. J. Wollersheim, P. Egelhof, H. Emling, J. Gerl, W. Henning, R. Holzmann, R. Schmidt, R. S. Simon, N. Martin, G. Eckert, Th W. Elze, K. Stelzer, R. Kulessa, G. Duchene, B. Haas, J. C. Merdinger, J. P. Vivien, J. de Boer, E. Hauber, K. KaiserP. von Brentano, R. Reinhardt, R. Wirowski, R. Julin, C. Fahlander, I. Thorslund, H. Kluge

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Abstract

Collective properties of^206,208Pb have been investigated with gamma-ray spectroscopy using nuclear and electromagnetic excitation by²⁰⁸Pb projectiles. From the measurement of particle-particle-γ and particle-particle-γ γ coincidences a new energy level in²⁰⁸Pb at 5.683 MeV was observed and the data suggest an interpretation as a 2-phonon octupole vibrational state with spin 4⁺ or 6⁺. For this state one finds the same dynamical deformation parameter β₃ as for the first-excited collective 3^- state. The results are compared to predictions of models which consider, in particular, the aspects of the quadrupole interaction and the interaction of the 2-particle pairing vibration with the 2-phonon octupole vibration. For the²⁰⁶Pb+²⁰⁸Pb system at 6.2 MeV/u the nuclear potential could be determined from the measured inelastic cross sections.

Original language	English
Pages (from-to)	137-144
Number of pages	8
Journal	Zeitschrift für Physik A Hadrons and Nuclei
Volume	341
Issue number	2
DOIs	https://doi.org/10.1007/BF01298473
State	Published - Jun 1992
Externally published	Yes

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27.80.+w

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Wollersheim, H. J., Egelhof, P., Emling, H., Gerl, J., Henning, W., Holzmann, R., Schmidt, R., Simon, R. S., Martin, N., Eckert, G., Elze, T. W., Stelzer, K., Kulessa, R., Duchene, G., Haas, B., Merdinger, J. C., Vivien, J. P., de Boer, J., Hauber, E., ... Kluge, H. (1992). Evidence for a two-phonon octupole vibrational state in²⁰⁸Pb. Zeitschrift für Physik A Hadrons and Nuclei, 341(2), 137-144. https://doi.org/10.1007/BF01298473

@article{2f840a28a04e45429077141e5108a3af,

title = "Evidence for a two-phonon octupole vibrational state in208Pb",

abstract = "Collective properties of206,208Pb have been investigated with gamma-ray spectroscopy using nuclear and electromagnetic excitation by208Pb projectiles. From the measurement of particle-particle-γ and particle-particle-γ γ coincidences a new energy level in208Pb at 5.683 MeV was observed and the data suggest an interpretation as a 2-phonon octupole vibrational state with spin 4+ or 6+. For this state one finds the same dynamical deformation parameter β3 as for the first-excited collective 3- state. The results are compared to predictions of models which consider, in particular, the aspects of the quadrupole interaction and the interaction of the 2-particle pairing vibration with the 2-phonon octupole vibration. For the206Pb+208Pb system at 6.2 MeV/u the nuclear potential could be determined from the measured inelastic cross sections.",

keywords = "21.10.-k, 27.80.+w",

author = "Wollersheim, {H. J.} and P. Egelhof and H. Emling and J. Gerl and W. Henning and R. Holzmann and R. Schmidt and Simon, {R. S.} and N. Martin and G. Eckert and Elze, {Th W.} and K. Stelzer and R. Kulessa and G. Duchene and B. Haas and Merdinger, {J. C.} and Vivien, {J. P.} and {de Boer}, J. and E. Hauber and K. Kaiser and {von Brentano}, P. and R. Reinhardt and R. Wirowski and R. Julin and C. Fahlander and I. Thorslund and H. Kluge",

year = "1992",

month = jun,

doi = "10.1007/BF01298473",

language = "English",

volume = "341",

pages = "137--144",

journal = "Zeitschrift f{\"u}r Physik A Hadrons and Nuclei",

issn = "0939-7922",

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Wollersheim, HJ, Egelhof, P, Emling, H, Gerl, J, Henning, W, Holzmann, R, Schmidt, R, Simon, RS, Martin, N, Eckert, G, Elze, TW, Stelzer, K, Kulessa, R, Duchene, G, Haas, B, Merdinger, JC, Vivien, JP, de Boer, J, Hauber, E, Kaiser, K, von Brentano, P, Reinhardt, R, Wirowski, R, Julin, R, Fahlander, C, Thorslund, I & Kluge, H 1992, 'Evidence for a two-phonon octupole vibrational state in²⁰⁸Pb', Zeitschrift für Physik A Hadrons and Nuclei, vol. 341, no. 2, pp. 137-144. https://doi.org/10.1007/BF01298473

TY - JOUR

T1 - Evidence for a two-phonon octupole vibrational state in208Pb

AU - Wollersheim, H. J.

AU - Egelhof, P.

AU - Emling, H.

AU - Gerl, J.

AU - Henning, W.

AU - Holzmann, R.

AU - Schmidt, R.

AU - Simon, R. S.

AU - Martin, N.

AU - Eckert, G.

AU - Elze, Th W.

AU - Stelzer, K.

AU - Kulessa, R.

AU - Duchene, G.

AU - Haas, B.

AU - Merdinger, J. C.

AU - Vivien, J. P.

AU - de Boer, J.

AU - Hauber, E.

AU - Kaiser, K.

AU - von Brentano, P.

AU - Reinhardt, R.

AU - Wirowski, R.

AU - Julin, R.

AU - Fahlander, C.

AU - Thorslund, I.

AU - Kluge, H.

PY - 1992/6

Y1 - 1992/6

N2 - Collective properties of206,208Pb have been investigated with gamma-ray spectroscopy using nuclear and electromagnetic excitation by208Pb projectiles. From the measurement of particle-particle-γ and particle-particle-γ γ coincidences a new energy level in208Pb at 5.683 MeV was observed and the data suggest an interpretation as a 2-phonon octupole vibrational state with spin 4+ or 6+. For this state one finds the same dynamical deformation parameter β3 as for the first-excited collective 3- state. The results are compared to predictions of models which consider, in particular, the aspects of the quadrupole interaction and the interaction of the 2-particle pairing vibration with the 2-phonon octupole vibration. For the206Pb+208Pb system at 6.2 MeV/u the nuclear potential could be determined from the measured inelastic cross sections.

AB - Collective properties of206,208Pb have been investigated with gamma-ray spectroscopy using nuclear and electromagnetic excitation by208Pb projectiles. From the measurement of particle-particle-γ and particle-particle-γ γ coincidences a new energy level in208Pb at 5.683 MeV was observed and the data suggest an interpretation as a 2-phonon octupole vibrational state with spin 4+ or 6+. For this state one finds the same dynamical deformation parameter β3 as for the first-excited collective 3- state. The results are compared to predictions of models which consider, in particular, the aspects of the quadrupole interaction and the interaction of the 2-particle pairing vibration with the 2-phonon octupole vibration. For the206Pb+208Pb system at 6.2 MeV/u the nuclear potential could be determined from the measured inelastic cross sections.

KW - 21.10.-k

KW - 27.80.+w

UR - http://www.scopus.com/inward/record.url?scp=0000684101&partnerID=8YFLogxK

U2 - 10.1007/BF01298473

DO - 10.1007/BF01298473

M3 - Article

AN - SCOPUS:0000684101

SN - 0939-7922

VL - 341

SP - 137

EP - 144

JO - Zeitschrift für Physik A Hadrons and Nuclei

JF - Zeitschrift für Physik A Hadrons and Nuclei

IS - 2

ER -

Evidence for a two-phonon octupole vibrational state in²⁰⁸Pb

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