Temporal variation of fundamental constants in <SUP>229</SUP>Th transition

HE Xiao-Tao; REN Zhong-Zhou

Chinese Physics C> 2008, Vol. 32> Issue(S2) : 162-165

Temporal variation of fundamental constants in ²²⁹Th transition

HE Xiao-Tao ^, ,
REN Zhong-Zhou

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If is there enhanced sensitivity to variations of fine structure constant, nucleon mass and meson masses in the transition between the low energy and long-lived nuclear isomer and ground states? To answer this open problem, we investigate the transition between the long-lived 7.6±0.5 eV isomer and ground states in ²²⁹Th based on the formulae derived from both the Nilsson model and Feynman-Hellmann theorem. Consistent conclusions are drawn by these two method. The sensitivity to relative variation of fine structure constant could be enhanced by 3—4 orders of magnitude, and to variations of nucleon mass and meson masses are enhanced by about 5—6 orders of magnitude in the ²²⁹Th transition.

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[1]

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HE Xiao-Tao and REN Zhong-Zhou. Temporal variation of fundamental constants in ²²⁹Th transition[J]. Chinese Physics C, 2008, 32(S2): 162-165.

HE Xiao-Tao and REN Zhong-Zhou. Temporal variation of fundamental constants in ²²⁹Th transition[J]. Chinese Physics C, 2008, 32(S2): 162-165. shu

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Received: 2008-07-17
Revised: 1900-01-01

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Temporal variation of fundamental constants in ²²⁹Th transition

Corresponding author: HE Xiao-Tao,

Received Date: 2008-07-17

Accepted Date: 1900-01-01

Available Online: 2008-01-03

Abstract: If is there enhanced sensitivity to variations of fine structure constant, nucleon mass and meson masses in the transition between the low energy and long-lived nuclear isomer and ground states? To answer this open problem, we investigate the transition between the long-lived 7.6±0.5 eV isomer and ground states in ²²⁹Th based on the formulae derived from both the Nilsson model and Feynman-Hellmann theorem. Consistent conclusions are drawn by these two method. The sensitivity to relative variation of fine structure constant could be enhanced by 3—4 orders of magnitude, and to variations of nucleon mass and meson masses are enhanced by about 5—6 orders of magnitude in the ²²⁹Th transition.

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Temporal variation of fundamental constants in ²²⁹Th transition

Temporal variation of fundamental constants in ²²⁹Th transition