摘要
The Mark J Collaboration at the DESY e+e- collider PETRA presents results on the electroweak reactions e+e-+-+-,+-, and e+e-+-. The c.m. energy range is 12 to 46.78 GeV. In the +- and +- channels the total cross sections and the forward-backward asymmetries are reported and compared with other experiments. The results are in excellent agreement with the standard model. The weak-neutral-current vector and axial-vector coupling constants are determined. The values for muons and s are compatible with universality and with the predictions of the standard model. In the +- channel, all measured distributions, including the forward-backward muon asymmetry, are in excellent agreement with the electroweak theory. Our data on the two-photon process, e+e-+-, agrees with QED to order ±4 over the entire energy range and the Q2 range from 0.7 to 166 GeV2.
原文 | ???core.languages.en_GB??? |
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頁(從 - 到) | 2665-2678 |
頁數 | 14 |
期刊 | Physical Review D - Particles, Fields, Gravitation and Cosmology |
卷 | 38 |
發行號 | 9 |
DOIs | |
出版狀態 | 已出版 - 1988 |