Tests of the standard model in leptonic reactions at PETRA energies

W. Bartel*, L. Becker, D. Cords, R. Felst, D. Haidt, G. Knies, H. Krehbiel, P. Laurikainen, N. Magnussen, R. Meinke, B. Naroska, J. Olsson, D. Schmidt, P. Steffen, G. Dietrich, J. Hagemann, G. Heinzelmann, H. Kado, K. Kawagoe, C. KleinwortM. Kuhlen, A. Petersen, R. Ramcke, U. Schneekloth, G. Weber, K. Ambrus, S. Bethke, A. Dieckmann, E. Elsen, J. Heintze, K. H. Hellenbrand, S. Komamiya, J. von Krogh, P. Lennert, H. Matsumura, H. Rieseberg, J. Spitzer, A. Wagner, C. Bowdery, A. Finch, F. Foster, G. Hughes, J. Nye, J. Allison, A. H. Ball, R. J. Barlow, J. Chrin, I. P. Duerdoth, T. Greenshaw, P. Hill, F. K. Loebinger, A. A. Macbeth, H. E. Mills, P. G. Murphy, K. Stephens, P. Warming, R. G. Glasser, J. A.J. Skard, S. R. Wagner, G. T. Zorn, S. L. Cartwright, D. Clarke, R. Marshall, R. P. Middleton, T. Kawamoto, T. Kobayashi, H. Takeda, T. Takeshita, S. Yamada

*この研究の対応する著者

研究成果: Article査読

32 被引用数 (Scopus)

抄録

An analysis of the three leptonic reactions e+e-→e+e-, μ+μ- and τ+τ- over a wide range of energy, {Mathematical expression} is presented. The data were obtained with the JADE detector at the e+e- storage ring PETRA. They are compared to predictions of electroweak theories, in particular the standard model. For the total cross-sections of all three reactions and for the differential cross-section of Bhabha scattering no deviation from QED is found over the entire energy range. The differential cross-sections of μ and τ pairs at high energies show the angular asymmetry predicted by electroweak interference. The axial-vector and vector weak coupling constant, sin2θW and MZ are determined and compared to other measurements. Finally, limits on deviations from the standard model are given.

本文言語English
ページ(範囲)371-380
ページ数10
ジャーナルZeitschrift für Physik C Particles and Fields
30
3
DOI
出版ステータスPublished - 1986 9
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(その他)

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