Two-phonon octupole excitation in Gd146

L. Caballero; B. Rubio; P. Kleinheinz; S. W. Yates; A. Algora; A. Dewald; A. Fitzler; A. Gadea; J. Jolie; R. Julin; A. Linnemann; S. Lunardi; R. Menegazzo; O. Möller; E. Nácher; M. Piiparinen; J. Blomqvist

doi:10.1103/PhysRevC.81.031301

Two-phonon octupole excitation in Gd146

L. Caballero, B. Rubio, P. Kleinheinz, S. W. Yates, A. Algora, A. Dewald, A. Fitzler, A. Gadea, J. Jolie, R. Julin, A. Linnemann, S. Lunardi, R. Menegazzo, O. Möller, E. Nácher, M. Piiparinen, J. Blomqvist

Chemistry

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

12 Scopus citations

Abstract

Based on experimental evidence from the Sm144(α,2n) reaction, the 3484.7-keV 6⁺ state in Gd146 is identified as the highest-spin member of the 3^--3^- two-phonon octupole quartet. A previously unknown γ line of 1905.8 keV and E3 character feeding the 3^- octupole state has been observed. These results represent the first observation of a 6⁺→3^-→0⁺ cascade of two E3 transitions in an even-even nucleus and provide strong support for the interpretation of the 6⁺ state as a two-phonon octupole excitation.

Original language	English
Article number	031301
Journal	Physical Review C - Nuclear Physics
Volume	81
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevC.81.031301
State	Published - Mar 9 2010

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1103/PhysRevC.81.031301

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Caballero, L., Rubio, B., Kleinheinz, P., Yates, S. W., Algora, A., Dewald, A., Fitzler, A., Gadea, A., Jolie, J., Julin, R., Linnemann, A., Lunardi, S., Menegazzo, R., Möller, O., Nácher, E., Piiparinen, M., & Blomqvist, J. (2010). Two-phonon octupole excitation in Gd146. Physical Review C - Nuclear Physics, 81(3), Article 031301. https://doi.org/10.1103/PhysRevC.81.031301

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abstract = "Based on experimental evidence from the Sm144(α,2n) reaction, the 3484.7-keV 6+ state in Gd146 is identified as the highest-spin member of the 3--3- two-phonon octupole quartet. A previously unknown γ line of 1905.8 keV and E3 character feeding the 3- octupole state has been observed. These results represent the first observation of a 6+→3-→0+ cascade of two E3 transitions in an even-even nucleus and provide strong support for the interpretation of the 6+ state as a two-phonon octupole excitation.",

author = "L. Caballero and B. Rubio and P. Kleinheinz and Yates, {S. W.} and A. Algora and A. Dewald and A. Fitzler and A. Gadea and J. Jolie and R. Julin and A. Linnemann and S. Lunardi and R. Menegazzo and O. M{\"o}ller and E. N{\'a}cher and M. Piiparinen and J. Blomqvist",

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doi = "10.1103/PhysRevC.81.031301",

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AU - Caballero, L.

AU - Rubio, B.

AU - Kleinheinz, P.

AU - Yates, S. W.

AU - Algora, A.

AU - Dewald, A.

AU - Fitzler, A.

AU - Gadea, A.

AU - Jolie, J.

AU - Julin, R.

AU - Linnemann, A.

AU - Lunardi, S.

AU - Menegazzo, R.

AU - Möller, O.

AU - Nácher, E.

AU - Piiparinen, M.

AU - Blomqvist, J.

PY - 2010/3/9

Y1 - 2010/3/9

N2 - Based on experimental evidence from the Sm144(α,2n) reaction, the 3484.7-keV 6+ state in Gd146 is identified as the highest-spin member of the 3--3- two-phonon octupole quartet. A previously unknown γ line of 1905.8 keV and E3 character feeding the 3- octupole state has been observed. These results represent the first observation of a 6+→3-→0+ cascade of two E3 transitions in an even-even nucleus and provide strong support for the interpretation of the 6+ state as a two-phonon octupole excitation.

AB - Based on experimental evidence from the Sm144(α,2n) reaction, the 3484.7-keV 6+ state in Gd146 is identified as the highest-spin member of the 3--3- two-phonon octupole quartet. A previously unknown γ line of 1905.8 keV and E3 character feeding the 3- octupole state has been observed. These results represent the first observation of a 6+→3-→0+ cascade of two E3 transitions in an even-even nucleus and provide strong support for the interpretation of the 6+ state as a two-phonon octupole excitation.

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Two-phonon octupole excitation in Gd146

Abstract

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