RT Journal Article
T1 Muonic vs electronic dark forces: a complete EFT treatment for atomic spectroscopy
A1 Frugiuele, Claudia
A1 Peset Martín, Clara María
AB Precision atomic spectroscopy provides a solid model independent bound on the existence of new dark forces among the atomic constituents. We focus on the keV-GeV region investigating the sensitivity to such dark sectors of the recent measurements on muonic atoms at PSI. To this end we develop for the first time, the effective field theory that describes the leading effect of a new (pseudo-)vector or a (pseudo-)scalar particle of any mass at atomic energies. We identify in the Lamb Shift measurement in muonic deuterium (μD) and the 2s Hyperfine Splitting (HFS) in muonic hydrogen (μH) the most promising measurements to probe respectively spin-independent and spin-dependent new forces. Furthermore, we evaluate the expression of the vector force HFS finding that a future measurement of the 2s HFS in regular hydrogen could provide the strongest atomic bound for such a force for masses above 100 MeV.
PB Springer
SN 1126-6708
YR 2022
FD 2022-05-02
LK https://hdl.handle.net/20.500.14352/100773
UL https://hdl.handle.net/20.500.14352/100773
LA eng
NO Frugiuele, C., Peset, C. Muonic vs electronic dark forces: a complete EFT treatment for atomic spectroscopy. J. High Energ. Phys. 2022, 2 (2022). https://doi.org/10.1007/JHEP05(2022)002
NO German Research Foundation (DFG)
NO National Natural Science Foundation of China (NSFC)
DS Docta Complutense
RD 8 abr 2025