| Speaker: | Takahiro Morishima (Nagoya U) |
|---|---|
| Title: | The muon gμ-2 in the Earth's gravity |
| Date (JST): | Fri, Mar 09, 2018, 13:30 - 14:30 |
| Place: | Seminar Room A |
| Abstract: | The general relativistic effects to the anomalous magnetic moment of fermions moving in the Earth's gravitational field have been examined. The Dirac equation generalized to include the general relativity suggests the magnetic moment of fermions measured on the ground level is in uenced by the Earth's gravitational field as μeffm≃(1+3ϕ/c2)μm, where μm is the magnetic moment in the at spacetime and ϕ = -GM/r is the Earth's gravitational potential. It implies that the anomalous magnetic moment measured on the Earth al≡gl2-1 contains the gravitational correction of|al| ≃ 2.1×10-9 in addition to the quantum radiative corrections. Especially for muons, the gravitationally induced anomaly may affect the comparison between the theoretical and experimental values recently reported: aμ(EXP)-aμ(SM) = 28.8 (8.0)×10-10 (3.6σ). The comparison between the theory and the experiment is examined by considering the in uence of the spacetime curvature to the measurement on the muon gμ-2 experiment using the storage ring on the basis of the general relativity up to the post-Newtonian order of O(1/c2). |
| Remarks: | arXiv:1801.10244 [hep-ph], T.Morishima,T.Futamase, "Post-Newtonian effects of Dirac particle in curved spacetime - I : magnetic moment in curved spacetime" arXiv:1801.10245 [hep-ph], T.Morishima,T.Futamase, "Post-Newtonian effects of Dirac particle in curved spacetime - II : the electron g-2 in the Earth's gravity" arXiv:1801.10246 [hep-ph], T.Morishima,T.Futamase, H.M.Shimizu, "Post-Newtonian effects of Dirac particle in curved spacetime - III : the muon g-2 in the Earth's gravity" |
