Effects of variation of the fine structure constant α and quark mass mq in Mössbauer nuclear transitions
Abstract
High accuracy measurements in Mössbauer transitions open up the possibility to use them in the search for temporal and spatial variations of the fine structure constant α , quark mass mq, and dark matter field which may lead to the variations of α and mq. We calculate the sensitivity of nuclear transitions to variations of α and mq. Mössbauer transitions have high sensitivity to variation of quark mass mq and the strong interaction scale ΛQCD to which atomic optical clocks are not sensitive. The enhancement factors K , defined by δ/f f =Kαδ/α α and δ/f f =Kqδ/mq mq where f is the transition energy, may be large in some transitions. The 8-eV nuclear clock transition in 229Th (Kq≈104) and 76-eV transition in 235U (Kα≈Kq≈103) may be investigated using laser spectroscopy methods.
- Publication:
-
Physical Review C
- Pub Date:
- May 2022
- DOI:
- 10.1103/PhysRevC.105.L051303
- arXiv:
- arXiv:2112.13195
- Bibcode:
- 2022PhRvC.105e1303F
- Keywords:
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- Nuclear Theory;
- High Energy Physics - Phenomenology;
- Nuclear Experiment;
- Physics - Atomic Physics
- E-Print:
- 8 pages