Abstract
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.
Original language | English |
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Pages (from-to) | 171-176 |
Number of pages | 6 |
Journal | Physics Letters B |
Volume | 88 |
Issue number | 1-2 |
DOIs | |
Publication status | Published - 1979 Dec 3 |
Externally published | Yes |
ASJC Scopus subject areas
- Nuclear and High Energy Physics