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Large long-distance contributions to the electric dipole moments of charged leptons in the standard model

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arxiv 2003.08195 v2 pith:SWU2V6WX submitted 2020-03-18 hep-ph hep-exnucl-th

classification hep-phhep-exnucl-th
keywords timeschargeddipoleelectrichadronlargeleptonslevel
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

We reevaluate the electric dipole moment (EDM) of charged leptons in the standard model using hadron effective models. We find unexpectedly large EDM generated by the hadron level long-distance effect, $d_e = { 5.8 \times 10^{-40} }$, $d_\mu = { 1.4 \times 10^{-38}}$, and $d_\tau = { -7.3 \times 10^{-38} }$ ecm, with an error bar of 70\%, exceeding the conventionally known four-loop level elementary contribution by several orders of magnitude.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Correlating $A \to \gamma\gamma$ with electric dipole moments in the two Higgs doublet model in light of the diphoton excesses at 95 GeV and 152 GeV

    hep-ph 2024-11 conditional novelty 6.0 of 10

    The CP-odd scalar A in the flavor-aligned CP-violating 2HDM can explain the diphoton excesses at 95 and 152 GeV only in tuned regions that survive the electron EDM bound and predict measurable neutron and proton EDMs.

  2. Beam test performance of a prototype muon trigger detector for the PSI muEDM experiment

    physics.ins-det 2024-12 conditional novelty 4.0 of 10

    A beam test of the muEDM prototype trigger detector found a 75% triggering efficiency and sufficient scintillator light yield, with Geant4 simulations reproducing the main event patterns.

  3. Searches for exotic spin-dependent interactions with spin sensors

    quant-ph 2024-12 unverdicted

    A review article that compiles how spin-based quantum sensors search for beyond-Standard-Model spin-dependent interactions, without adding new measurements.

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