Precision measurement of electroweak effects in e+e-+- at s=29 GeV

W. W. Ash, H. R. Band, H. T. Blume, T. Camporesi, G. B. Chadwick, S. H. Clearwater, R. W. Coombes, M. C. Delfino, E. Fernandez, W. T. Ford, M. W. Gettner, G. P. Goderre, D. E. Groom, B. K. Heltsley, R. B. Hurst, J. R. Johnson, K. H. Lau, T. L. Lavine, R. E. Leedy, I. LippiT. Maruyama, R. L. Messner, J. H. Moromisato, L. J. Moss, F. Muller, H. N. Nelson, I. Peruzzi, M. Piccolo, R. Prepost, N. Qi, A. L. Read, D. M. Ritson, L. J. Rosenberg, W. D. Shambroom, J. C. Sleeman, J. G. Smith, J. P. Venuti, E. Von Goeler, H. B. Wald, Roy Weinstein, D. E. Wiser, R. W. Zdarko

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31 Citations (Scopus)


A high-statistics measurement has been made of the process e+e-+- at s=29 GeV with the MAC detector at the SLAC storage ring PEP. The electroweak forward-backward charge asymmetry for a sample of approximately 16 000 events was measured to be A=-0.0630.0080.002. The ratio of the cross section to the lowest-order QED cross section was measured to be R= From these results the weak neutral axial-vector and vector couplings are determined to be gAegA= and gVegV=- © 1985 The American Physical Society.
Original languageEnglish
Pages (from-to)1831-1834
JournalPhysical Review Letters
Issue number18
Publication statusPublished - 1 Jan 1985


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