Главная страница > A measurement of $e^{+}e^{-} \to$ hadrons at $\sqrt{s}$=27.4 GeV |
Article | |
Title | A measurement of $e^{+}e^{-} \to$ hadrons at $\sqrt{s}$=27.4 GeV |
Author(s) | Branson, J.G. (DESY) ; Barber, D. ; Becker, U. ; Benda, H. ; Bohm, A. ; Bron, J. ; Buikman, D. ; Burger, J. ; Chang, C.C. ; Chen, M. ; Cheng, D.P. ; Chu, Y.S. ; Duinker, P. ; Fesefeldt, H. ; Fong, D. ; Fukushima, M. ; Ho, M.C. ; Hsu, H.K. ; Kadel, R. ; Luckey, David ; Ma, C.M. ; Massaro, G. ; Matsuda, T. ; Newman, H. ; Revol, J.P. ; Rohde, M. ; Rykaczewski, H. ; Hsu, T.T. ; Tang, H.W. ; Ting, S.C.C. ; Tung, K.L. ; Vannucci, F. ; White, M. ; Wu, T.W. ; Yang, P.C. |
Publication | Geneva, Switzerland : CERN, 1979 |
Note | Preliminary entry |
In: | International Conference on High-energy Physics, pp.325-329 |
Subject category | Particle Physics - Phenomenology |
Abstract | During the initial running of PETRA at 27.4 GeV, the authors have measured the reaction e/sup +/e/sup -/ to hadrons using the MARK J detector. They find a value of R of 4.1+or-.5 (statistical) +or-.7 (systematic). Events are analyzed in terms of thrust and spherocity. Overall, they find no evidence for a new threshold in hadron production up to the present energy. (2 refs). |