Proton radius puzzle and large extra dimensions

Abstract

We propose a theoretical scenario to solve the proton radius puzzle which recently arises from the muonic hydrogen experiment. In this framework, 4 + n dimensional theory is incorporated with modified gravity. The extra gravitational interaction between the proton and muon at very short range provides an energy shift which accounts for the discrepancy between spectroscopic results from muonic and electronic hydrogen experiments. Assuming the modified gravity is a small perturbation to the existing electromagnetic interaction, we find the puzzle can be solved with stringent constraint on the range of the new force. Our result not only provides a possible solution to the proton radius puzzle but also suggest a direction to test new physics at very small length scale.

6 pages, 1 table. 10 more references added

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Cited by in corpus (23)

• The Proton Radius Puzzle
• On the pi pi continuum in the nucleon form factors and the proton radius puzzle
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• Constraints on extra dimensions from precision molecular spectroscopy
• Asymptotically locally flat and AdS higher-dimensional black holes of Einstein-Horndeski-Maxwell gravity in the light of EHT observations: shadow behavior and deflection angle
• Proton radius puzzle and quantum gravity at the Fermi scale
• Constraints on extra dimensions from atomic spectroscopy
• Is the proton radius puzzle evidence of extra dimensions?
• Hydrogen and muonic-Hydrogen Atomic Spectra in Non-commutative Space-Time
• Spectroscopic tests for short-range modifications of Newtonian and post-Newtonian potentials
• Leading order corrections to the Bethe-Heitler process in the $\gamma p\to l^{+}{l}^{-}p$ reaction
• Can Galileons solve the muon problem?
• Soft-photon corrections to the Bethe-Heitler process in the $\gamma p\to l^{+}{l}^{-}p$ reaction
• Hadronic Vacuum Polarization in True Muonium
• Radiative and chiral corrections to elastic lepton-proton scattering in chiral perturbation theory
• Reduced Theoretical Error for QED Tests with 4He+ Spectroscopy
• Neutron interferometry and tests of short-range modifications of gravity
• Non-Perturbative Lepton Sea Fermions in the Nucleon and the Proton Radius Puzzle
• Rydberg states of hydrogen-like ions in braneworld
• Effects of gravity in extra dimensions in atomic phenomena
• Muonic hydrogen as a quantum gravimeter
• Metamaterial branes
• Microscopic composite systems bound by strong gravity in extra dimensions as candidates for dark matter