抄録
Topological distributions of charged and neutral hadrons from the reaction e+e- → multihadrons are studied at √s of about 30 GeV. An excess of planar events is observed at a rate which cannot be explained by statistical fluctuations in the standard two-jet process. The planar events, mostly consisting of a slim jet on one side and a broader jet on the other, are shown actually to possess three-jet structure by demonstrating that the broader jet itself consists of two collinear jets in its own rest system. Detailed agreement between data and predictions is obtained if the process e+e-→q q ̄g is taken into account. This strongly suggests gluon bremsstrahlung as the origin of the planar three-jet events. By comparison of the data with the qq̄g-model we obtain a value for the strong coupling constant of αS(q2 = 0.17 ± 0.04.
本文言語 | English |
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ページ(範囲) | 142-147 |
ページ数 | 6 |
ジャーナル | Physics Letters B |
巻 | 91 |
号 | 1 |
DOI | |
出版ステータス | Published - 1980 3月 24 |
外部発表 | はい |
ASJC Scopus subject areas
- 核物理学および高エネルギー物理学