Observation of four-jet structure in e+e- - annihilation at √s = 33 GeV

W. Bartel, D. Cords, P. Dittmann, R. Eichler, R. Felst, D. Haidt, H. Krehbiel, K. Meier, B. Naroska, L. H. O'Neill, P. Steffen, H. Wenninger, E. Elsen, A. Petersen, P. Warming, G. Weber, S. Bethke, H. Drumm, J. Heintze, G. HeinzelmannK. 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, J. F. Hassard, B. T. King, F. K. Loebinger, A. A. Macbeth, H. McCann, H. E. Mills, P. G. Murphy, 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

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23 Citations (Scopus)

Abstract

Topological distributions of hadrons from the reaction e+e-→ hadrons are studied at center of mass energies of about 33 GeV. The experimental distributions in the parameters acoplanarity and tripodity, both sensitive to events with a four-jet structure, show significant deviations from the expectations for two- and three-jet events. They can be described well by the inclusion of four-jet events. The relative magnitude of the observed effect indicates second order QCD as its probable origin.

Original languageEnglish
Pages (from-to)338-344
Number of pages7
JournalPhysics Letters B
Volume115
Issue number4
DOIs
Publication statusPublished - 1982 Sep 9

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Bartel, W., Cords, D., Dittmann, P., Eichler, R., Felst, R., Haidt, D., Krehbiel, H., Meier, K., Naroska, B., O'Neill, L. H., Steffen, P., Wenninger, H., Elsen, E., Petersen, A., Warming, P., Weber, G., Bethke, S., Drumm, H., Heintze, J., ... Yanagisawa, C. (1982). Observation of four-jet structure in e+e- - annihilation at √s = 33 GeV. Physics Letters B, 115(4), 338-344. https://doi.org/10.1016/0370-2693(82)90383-5