Differential three-jet cross section in e+e--annihilation and comparison with second-order predictions of QCD and abelian vector theory

W. Bartel, D. Cords, G. Dietrich, P. Dittmann, R. Eichler, R. Felst, D. Haidt, H. Krehbiel, K. Meier, B. Naroska, L. H. O'Neill, P. Steffen, E. Elsen, A. Petersen, P. Warming, G. Weber, G. Kramer, G. Schierholz, S. Bethke, J. HeintzeG. Heinzelmann, K. H. Hellenbrand, R. D. Heuer, J. von Krogh, P. Lennert, S. Kawabata, S. Komamiya, H. Matsumura, T. Nozaki, J. Olsson, H. Rieseberg, A. Wagner, A. Bell, F. Foster, G. Hughes, H. Wriedt, J. Allison, A. H. Ball, G. Bamford, R. Barlow, C. Bowdery, I. P. Duerdoth, I. Glendinning, F. K. Loebinger, A. A. Macbeth, H. McCann, H. E. Mills, P. G. Murphy, P. Rowe, K. Stephens, D. Clarke, M. C. Goddard, R. Marshall, G. F. Pearce, J. Kanzaki, T. Kobayashi, M. Koshiba, M. Minowa, M. Nozaki, S. Odaka, S. Orito, A. Sato, H. Takeda, Y. Totsuka, Y. Watanabe, S. Yamada, C. Yanagisawa

研究成果: Article

31 引用 (Scopus)

抜粋

Differential three-jet cross sections have been measured in e+e--annihilation at an average CM energy of 33.8 GeV and were compared to first- and second-order predictions of QCD and of a QED-like abelian vector theory. QCD provides a good description of the observed distributions. The inclusion of second-order effects reduced the observed quark-gluon coupling strength by about 20% to αS = 0.16 ± 0.015 (stat.) ± 0.03 (syst.). The abelian vector theory is found to be incompatible with the data.

元の言語English
ページ(範囲)239-244
ページ数6
ジャーナルPhysics Letters B
119
発行部数1-3
DOI
出版物ステータスPublished - 1982 12 16
外部発表Yes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Bartel, W., Cords, D., Dietrich, G., Dittmann, P., Eichler, R., Felst, R., Haidt, D., Krehbiel, H., Meier, K., Naroska, B., O'Neill, L. H., Steffen, P., Elsen, E., Petersen, A., Warming, P., Weber, G., Kramer, G., Schierholz, G., Bethke, S., ... Yanagisawa, C. (1982). Differential three-jet cross section in e+e--annihilation and comparison with second-order predictions of QCD and abelian vector theory. Physics Letters B, 119(1-3), 239-244. https://doi.org/10.1016/0370-2693(82)90285-4