| Autor: |
W. Farr, Y. Totsuka, Makoto Minowa, H. Rieseberg, Masatoshi Imori, T. Nosaki, Shoichi Yamada, J. E. Olsson, J. Heintze, D. Clarke, K. Stephens, Gareth Hughes, I. P. Duerdoth, A. A. Macbeth, W. L. Yen, F. Foster, Tatsuo Kobayashi, G. Heinzelmann, M. Helm, John Allison, H. Wriedt, D. Cords, J. Armitage, J. von Krogh, P. Dittmann, R. Hedgecock, M. Koshiba, G. Weber, A. Petersen, P. Warming, H. Matsumura, Yosuke Watanabe, C. Yanagisawa, D. Haidt, R. Felst, T. Canzler, P. Lennert, S. Kawabata, R. Eichler, H. Krehbiel, S. Orito, Harrison Prosper, B. Naroska, D.C. Darvill, W. Bartel, P. G. Murphy, P. Steffen, H. Riege, H. Drumm, A. Sato, F. K. Loebinger, D. Mercer, H. Takeda, R. D. Heuer, M. C. Goddard, G. F. Pearce, E. Elsen, L. H. O'Neill, Sachio Komamiya, T. Suda, A. Wagner, E. Gadermann, R. Marshall, H. E. Mills |
| Rok vydání: |
1979 |
| Předmět: |
|
| Zdroj: |
Physics Letters B. 88:171-176 |
| ISSN: |
0370-2693 |
| DOI: |
10.1016/0370-2693(79)90139-4 |
| Popis: |
The cross section for the process e+e− → multihadrons has been measured at the highest PETRA energies. We measure R (the total cross section in units of the point-like e+e- → μ+μ- cross section) to be 2.9 ± 0.7, 4.0 ± 0.5, 4.6 ± 0.4 and 4.2 ± 0.6 at s of 22, 27.7, 30 and 31.6 GeV, respectively. The observed average multiplicity, together with existing low energy data, indicate a rapid increase in multiplicity with increasing energy. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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