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oai:hiroshima.repo.nii.ac.jp:02008494 2025-02-22T03:48:36Z 1730444907710

Direct Measurement of Leptonic Coupling Asymmetries with Polarized Z Bosons SLD, Collaboration SLD Collaboration Takahashi, Tohru Takahashi Tohru open access Copyright (c) 1997 American Physical Society. We present direct measurements of the Z0-lepton coupling asymmetry parameters Ae, Aμ, and Aτ, based on a data sample of 12 063 leptonic Z0 decays collected by the SLD detector. The Z bosons are produced in collisions of beams of polarized e- with unpolarized e+ at the SLAC Linear Collider. The couplings are extracted from the measurement of the left-right and forward-backward asymmetries for each lepton species. The results are Ae = 0.152±0.012(stat)±0.001(syst), Aμ = 0.102±0.034±0.002, and Aτ = 0.195±0.034±0.003. American Physical Society 1997-08-04 eng journal article VoR https://hiroshima.repo.nii.ac.jp/records/2008494 10.1103/PhysRevLett.79.804 http://dx.doi.org/10.1103/PhysRevLett.79.804 0031-9007 AA00773679 Physical Review Letters Physical Review Letters 79 5 804 804 808 https://hiroshima.repo.nii.ac.jp/record/2008494/files/PhysRevLett_79_804.pdf 117.2 KB