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A study of three-jet events at the CERN {Mathematical expression} collider

Abstract:
The UA2 experiment, running at the CERN SPS {Mathematical expression} Collider, has performed a study of events containing three hard jets in the final state. The angular distributions of the three jets show evidence for gluon bremsstrahlung, in good agreement with a QCD model to leading order in the strong coupling constant αs. The yield of three-jet events relative to that of two-jet events provides a measure of the strong coupling constant: ;3K3/K2=0.23±0.01±0.04, where K2 and K3 represent the contributions arising from higher order corrections in α3 to the two- and three-jet exclusive cross-sections. A detailed discussion of the systematic and theoretical uncertainties is given. © 1986 Springer-Verlag.

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Publisher copy:
10.1007/BF01557598

Authors



Publisher:
Springer-Verlag
Journal:
Zeitschrift für Physik C Particles and Fields More from this journal
Volume:
30
Issue:
3
Pages:
341-353
Publication date:
1986-09-01
DOI:
EISSN:
1434-6052
ISSN:
0170-9739


Language:
English
Pubs id:
pubs:345283
UUID:
uuid:2f418b7a-75f6-4c26-a0e7-e5a610498a6f
Local pid:
pubs:345283
Source identifiers:
345283
Deposit date:
2012-12-19

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