Hadronic transitions Υ(2S)→Υ(1S)
Physical Review D American Physical Society (APS) 58:5 (1998) 052004
Limits on WWγ and WWZ couplings from W boson pair production
Physical Review D - Particles, Fields, Gravitation and Cosmology 58:5 (1998) 511011-511016
Abstract:
The results of a search for W boson pair production in pp̄ collisions at √s = 1.8 TeV with subsequent decay to eμ, ee, and μμ channels are presented. Five candidate events are observed with an expected background of 3.1 ± 0.4 events for an integrated luminosity of approximately 97 pb-1. Limits on the anomalous couplings are obtained from a maximum likelihood fit of the ET spectra of the leptons in the candidate events. Assuming identical WWγ and WWZ couplings, the 95% C.L. limits are -0.62<Δκ<0.77 (λ = 0) and -0.53<λ <0.56 (Δκ = 0) for a form factor scale Λ= 1.5 TeV.Observation of High Momentum η′ Production in B Decays
Physical Review Letters American Physical Society (APS) 81:9 (1998) 1786-1790
Measurement of the anomalous magnetic and electric dipole moments of the tau lepton
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 434:1-2 (1998) 169-179
Abstract:
We analyse e+e-→ ττγ events using 100pb-1 of data collected by the L3 experiment during the 1991-1995 LEP runs at the Z pole. From the energy of the photons and their isolation from the tau decay products, we determine the anomalous magnetic and electric dipole moments of the tau to be, respectively: aτ = 0.004 ± 0.027 ± 0.023; dτ = (0.0 ± 1.5 + 1.3) × 10-16e · cm. This is a direct measurement of these τ form factors at q2 = 0. © 1998 Elsevier Science B.V. All rights reserved.Improved measurement of the pseudoscalar decay constant fDs
Physical Review D American Physical Society (APS) 58:3 (1998) 032002