Hyperfine interaction and g-factor measurements in Er isotopes

K. H. Speidel; G. J. Kumbartzki; W. Knauer; R. Kuhnen; G. Kraft; J. Gerber; M. B. Goldberg; G. Goldring; A. Zemel

doi:10.1016/0375-9474(80)90437-6

Hyperfine interaction and g-factor measurements in Er isotopes

K. H. Speidel, G. J. Kumbartzki, W. Knauer, R. Kuhnen, G. Kraft, J. Gerber, M. B. Goldberg, G. Goldring, A. Zemel

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

4 Scopus citations

Abstract

Energy levels in ¹⁶⁰Er and ¹⁵⁹Er were excited in the reactions ²⁸Si(¹³⁶Xe, 4n)¹⁶⁰Er and ²⁸Si(¹³⁶Xe, 5n)¹⁵⁹Er, and the product nuclei, recoiling with a velocity v = 0.07c were stopped in a plunger instrument after traversing a volume of hydrogen gas. The angular distribution of de-excitation γ-rays was studied as a function of flight time and gas pressure. Appreciable perturbations were detected in ¹⁶⁰Er at times as short as 2 ps and in an angular momentum region as high as 12ħ. No perturbation could be detected in the 21/2⁺ level of ¹⁵⁹Er even after 12 ps, signifying a low value for the g-factor of this level.

Original language	English
Pages (from-to)	176-184
Number of pages	9
Journal	Nuclear Physics A
Volume	344
Issue number	1
DOIs	https://doi.org/10.1016/0375-9474(80)90437-6
State	Published - 1 Jan 1980
Externally published	Yes

Keywords

Nuclear reaction

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1016/0375-9474(80)90437-6

Cite this

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title = "Hyperfine interaction and g-factor measurements in Er isotopes",

abstract = "Energy levels in 160Er and 159Er were excited in the reactions 28Si(136Xe, 4n)160Er and 28Si(136Xe, 5n)159Er, and the product nuclei, recoiling with a velocity v = 0.07c were stopped in a plunger instrument after traversing a volume of hydrogen gas. The angular distribution of de-excitation γ-rays was studied as a function of flight time and gas pressure. Appreciable perturbations were detected in 160Er at times as short as 2 ps and in an angular momentum region as high as 12ħ. No perturbation could be detected in the 21/2+ level of 159Er even after 12 ps, signifying a low value for the g-factor of this level.",

keywords = "Nuclear reaction",

author = "Speidel, {K. H.} and Kumbartzki, {G. J.} and W. Knauer and R. Kuhnen and G. Kraft and J. Gerber and Goldberg, {M. B.} and G. Goldring and A. Zemel",

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T1 - Hyperfine interaction and g-factor measurements in Er isotopes

AU - Speidel, K. H.

AU - Kumbartzki, G. J.

AU - Knauer, W.

AU - Kuhnen, R.

AU - Kraft, G.

AU - Gerber, J.

AU - Goldberg, M. B.

AU - Goldring, G.

AU - Zemel, A.

PY - 1980/1/1

Y1 - 1980/1/1

N2 - Energy levels in 160Er and 159Er were excited in the reactions 28Si(136Xe, 4n)160Er and 28Si(136Xe, 5n)159Er, and the product nuclei, recoiling with a velocity v = 0.07c were stopped in a plunger instrument after traversing a volume of hydrogen gas. The angular distribution of de-excitation γ-rays was studied as a function of flight time and gas pressure. Appreciable perturbations were detected in 160Er at times as short as 2 ps and in an angular momentum region as high as 12ħ. No perturbation could be detected in the 21/2+ level of 159Er even after 12 ps, signifying a low value for the g-factor of this level.

AB - Energy levels in 160Er and 159Er were excited in the reactions 28Si(136Xe, 4n)160Er and 28Si(136Xe, 5n)159Er, and the product nuclei, recoiling with a velocity v = 0.07c were stopped in a plunger instrument after traversing a volume of hydrogen gas. The angular distribution of de-excitation γ-rays was studied as a function of flight time and gas pressure. Appreciable perturbations were detected in 160Er at times as short as 2 ps and in an angular momentum region as high as 12ħ. No perturbation could be detected in the 21/2+ level of 159Er even after 12 ps, signifying a low value for the g-factor of this level.

KW - Nuclear reaction

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Hyperfine interaction and g-factor measurements in Er isotopes

Abstract

Keywords

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