Muon g – 2 and a Geocentric New Field

Journal Article · 01 May 2023 · Physical Review Letters

DOI: https://doi.org/10.1103/physrevlett.130.181802 · OSTI ID:1972024

Davoudiasl, Hooman ^[1]; Szafron, Robert  ^[1]

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1. Brookhaven National Lab. (BNL), Upton, NY (United States)

Light scalars can in principle couple to both bulk matter and fermion spin, with hierarchically disparate strengths. Storage ring measurements of fermion electromagnetic moments via spin precession can be sensitive to such a force, sourced by the Earth. We discuss how this force could lead to the current deviation of the measured muon anomalous magnetic moment, g - 2, from the Standard Model prediction. Due to its different parameters, the proposed J-PARC muon g - 2 experiment can provide a direct test of our hypothesis. A future search for the proton electric dipole moment can have good sensitivity for the coupling of the assumed scalar to nucleon spin. We also argue that supernova constraints on the axion-muon coupling may not be applicable in our framework

• Research Organization: Brookhaven National Laboratory (BNL), Upton, NY (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP); USDOE
• Grant/Contract Number: SC0012704
• OSTI ID: 1972024
• Alternate ID(s): OSTI ID: 1971826
• Report Number(s): BNL-224259-2023-JAAM; TRN: US2313734
• Journal Information: Physical Review Letters, Vol. 130, Issue 18; ISSN 0031-9007
• Publisher: American Physical Society (APS)Copyright Statement
• Country of Publication: United States
• Language: English