Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2000-04-04
JHEP 0007:002,2000
Physics
High Energy Physics
High Energy Physics - Phenomenology
32 pages, 1 figure, JHEP class included
Scientific paper
10.1088/1126-6708/2000/07/002
Perturbative QCD analysis is presented of the cumulative out-of-plane momentum distribution in the near-to-planar e+e- annihilation events, K_out << Q. In this kinematical region multiple gluon radiation effects become essential. They are resummed with the single-logarithmic accuracy, which programme includes the 2-loop treatment of the basic radiation and matching with the exact O(alpha_s^2) result. Dedicated experimental analyses of 3-jet event characteristics are of special interest for the study of the non-perturbative confinement effects.
Banfi Andrea
Dokshitzer Yu. L.
Marchesini Giuseppe
Zanderighi Giulia
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