Improved constraints on exotic interactions between electron and proton in hydrogen

• URL: http://arxiv.org/abs/2408.11009v1
• Date: Tue, 20 Aug 2024 17:03:33 GMT
• Title: Improved constraints on exotic interactions between electron and proton in hydrogen
• Authors: Lei Cong, Filip Ficek, Pavel Fadeev, Dmitry Budker,
• Abstract summary: Atomic spectroscopy can be used to search for new bosons that carry exotic forces between elementary fermions. A comparison of a recent precise measurement of the hyperfine splitting of the 2S$_1/2$ electronic levels of hydrogen and up-to-date bound-state quantum electrodynamics theory yields improved constraints.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Atomic spectroscopy can be used to search for new bosons that carry exotic forces between elementary fermions. A comparison of a recent precise measurement [Bullis \textit{et al.}, Phys. Rev. Lett. \textbf{130}, 203001 (2023)] of the hyperfine splitting of the 2S$_{1/2}$ electronic levels of hydrogen and up-to-date bound-state quantum electrodynamics theory yields improved constraints on electron-proton exotic interactions of the dimensionless coupling strengths $g_pg_p$ and $g_Ag_A$, corresponding to the exchange of a pseudoscalar (axionlike) or axial-vector boson, respectively.

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