Experimental limits on the strength of weak neutral currents in lepton pair production at PETRA energies

W. Bartel, D. Cords, P. Dittman, R. Eichler, R. Felst, D. Haidt, S. Kawabata, H. Krehbiel, B. Naroska, L. H. O'Neill, P. Steffen, W. L. Yen, E. Elsen, M. Helm, A. Petersen, P. Warming, G. Weber, H. Drumm, J. Heintze, G. HeinzelmannR. D. Heuer, J. von Krogh, P. Lennert, H. Matsumura, T. Nozaki, J. Olsson, H. Rieseberg, A. Wagner, D. C. Darvill, F. Foster, G. Hughes, H. Wriedt, J. Allison, A. H. Ball, I. P. Duerdoth, J. F. Hassard, B. T. King, F. K. Loebinger, A. A. Macbeth, H. McCann, H. E. Mills, P. G. Murphy, H. B. Prosper, K. Stephens, D. Clarke, M. C. Goddard, R. Marshall, G. F. Pearce, M. Imori, T. Kobayashi, S. Komamiya, M. Koshiba, M. Minowa, M. Nozaki, S. Orito, A. Sato, T. Suda, H. Takeda, Y. Totsuka, Y. Watanabe, S. Yamada, C. Yanagisawa

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Abstract

The processes e+e- → e+e- and μ+μ- have been studied at PETRA using the JADE detector. The data, which were collected at s-values of up to 1300 GeV2 have been analysed in terms of an electro-weak extension of QED to obtain values for the weak vector and axial vector couplings in the lepton sector. The values obtained agree with the predictions of the standard Salam-Weinberg model and the data are further analysed in terms of this model to obtain the limits 0.10 < sin2 θ{symbol}w < 0.40 (68% CL). The mass of the neutral weak gauge boson is deduced to be greater than 51 GeV/c2.

Original languageEnglish
Pages (from-to)281-286
Number of pages6
JournalPhysics Letters B
Volume99
Issue number3
DOIs
Publication statusPublished - 1981 Feb 19
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Bartel, W., Cords, D., Dittman, P., Eichler, R., Felst, R., Haidt, D., Kawabata, S., Krehbiel, H., Naroska, B., O'Neill, L. H., Steffen, P., Yen, W. L., Elsen, E., Helm, M., Petersen, A., Warming, P., Weber, G., Drumm, H., Heintze, J., ... Yanagisawa, C. (1981). Experimental limits on the strength of weak neutral currents in lepton pair production at PETRA energies. Physics Letters B, 99(3), 281-286. https://doi.org/10.1016/0370-2693(81)91126-6