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Search for the Electric Dipole Moment of the tau Lepton

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arxiv hep-ex/0210066 v3 pith:KR4KGBDD submitted 2002-10-31 hep-ex

Belle collaboration: K.Inami , et al This is my paper · ORCID
classification hep-ex
keywords dipoleelectricleptonmomentarisingbellecollectedcollider
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We have searched for a CP violation signature arising from an electric dipole moment (d_tau) of the tau lepton in the e+e- -> tau+tau- reaction. Using an optimal observable method and 29.5 fb^{-1} of data collected with the Belle detector at the KEKB collider at sqrt{s} = 10.58 GeV, we find Re(d_tau) = (1.15 +- 1.70) x 10^{-17} ecm and Im(d_tau) = (-0.83 +- 0.86) x 10^{-17} ecm and set the 95% confidence level limits -2.2 < Re(d_tau) < 4.5 (10^{-17}ecm) and -2.5 < Im(d_tau) < 0.8 (10^{-17}ecm).

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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. New physics and tau $g-2$ using LHC heavy ion collisions

    hep-ph 2019-08 conditional novelty 7.0 of 10

    Using ultraperipheral lead-lead collisions, a lepton-plus-tracks analysis could constrain the tau anomalous magnetic moment to -0.0080 < a_tau < 0.0046 at 68% CL, three times better than DELPHI.

  2. Dihadron azimuthal asymmetry and light-quark dipole moments at the Electron-Ion Collider

    hep-ph 2024-08 unverdicted novelty 6.0 of 10

    Proposal for a new observable—dihadron azimuthal asymmetry in unpolarized SIDIS at EIC—that isolates linear dependence on light-quark dipole couplings via SM-dipole interference.

  3. CP violation studies at Super Tau-Charm Facility

    hep-ex 2025-02 conditional novelty 4.0 of 10

    A future Super Tau-Charm Facility is projected to test CP violation in hyperon, tau, and charm decays at 1e-4 to 1e-3 sensitivities and improve the kaon CPT mass-difference limit tenfold.

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