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Electrophobic Scalar Boson and Muonic Puzzles
Yu-Sheng Liu1, David McKeen1, Gerald A Miller1
1Department of Physics, University of Washington, Seattle, Washington 98195-1560, USA.
Physical Review Letters
|September 17, 2016
Summary
A novel scalar boson could resolve both the proton radius puzzle and the muon anomalous magnetic moment discrepancy. This particle
Area of Science:
- Particle Physics
- Nuclear Physics
- Cosmology
Background:
- The proton radius puzzle indicates a significant discrepancy in proton radius measurements.
- The muon anomalous magnetic moment shows a deviation from the Standard Model prediction.
Purpose of the Study:
- To investigate a new scalar boson as a potential solution to both the proton radius puzzle and the muon anomalous magnetic moment discrepancy.
- To constrain the mass and coupling properties of this hypothetical scalar boson.
Main Methods:
- Utilized a variety of experimental measurements to constrain the scalar boson's properties.
- Applied model-independent constraints based on the requirement to solve both discrepancies.
Main Results:
- Established a mass range for the scalar boson between approximately 100 keV and 100 MeV.
- Identified two unexplored regions in the coupling constant-mass plane for the scalar boson.
Conclusions:
- The proposed scalar boson offers a unified explanation for two major anomalies in particle physics.
- Future experiments can probe the identified parameter space to further test this hypothesis.
- Implications for theories involving mass-weighted lepton couplings are discussed.
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