Observation of four-jet structure in $e^{+}e^{-}$-annihilation at $\sqrt{s}=33$ GeV

Topological distributions of hadrons from the reaction e/sup +/e/sup - / to 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 fro...

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Detalles Bibliográficos
Autores principales: Bartel, Wulfrin, Cords, D, Dittmann, P, Eichler, R, Felst, R, Haidt, Dieter, Krehbiel, H, Meier, K, Naroska, Beate, O'Neill, L H, Steffen, P, Wenninger, Horst, Elsen, E E, Petersen, A, Warming, P, Weber, G, Bethke, Siegfried, Drumm, H, Heintze, J, Heinzelmann, G, Hellenbrand, K H, Heuer, R D, Von Krogh, J, Lennert, P, Kawabata, S, Komamiya, S, Matsumura, H, Nozaki, T, Olsson, J, Rieseberg, H, Wagner, A, Bell, A, Foster, F, Hughes, G, Wriedt, H, Allison, J, Ball, A H, Bamford, G, Barlow, R, Bowdery, C K, Duerdoth, I P, Hassard, J F, King, B T, Loebinger, F K, MacBeth, A A, McCann, H, Mills, H E, Murphy, P G, Stephens, K, Clarke, D, Goddard, M C, Marshall, R, Pearce, G F, Kanzaki, J I, Kobayashi, T, Koshiba, M, Minowa, M, Nozaki, M, Odaka, S, Orito, S, Sato, A, Takeda, H, Totsuka, Y, Watanabe, Y, Yamada, S, Yanagisawa, C
Lenguaje:eng
Publicado: 1982
Materias:
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1016/0370-2693(82)90383-5
http://cds.cern.ch/record/137104
Descripción
Sumario:Topological distributions of hadrons from the reaction e/sup +/e/sup - / to 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. (13 refs).

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