QCD predictions for four-jet final states in e+e− annihilation (II). Angular correlations as a test of the triple-gluon coupling

Spin correlations in $e^+e^-\to 4$ jets

“…For completeness, we recall the definitions of the four angular variables [43,44,45,46] introduced in the previous Section. One first orders the jets in energy such that…”

“…[48] (hereafter denoted by Φ * KSW ), which is more sensitive than the original to the flavour composition (see Refs. [44,48]). Thus, in events for which…”

The nonabelian structure of QCD in quarkonium decays

“…The polar angle G between the thrust axis in (2.1)(respectively the photon momentum in {2.2)) and the beam axis should be easy to measure experimentally, how the nonabelian structure of QCO influences the predictions for these polar correlations are discussed in section 4. In section 5 we study azimuthal angular correlations between event planes which have been discussed also in four jet oroduction in the e+e-continuum [9].…”

Jets and multiplicities in $e^+e^-$

“…The 4-jet angles measured are the Bengtsson-Zerwas [11] angle, χ BZ , the modified Nachtmann-Reiter [12] angle, Θ NR , the Körner-Schierholtz-Willrodt [13] angle, Φ KSW , and the angle between the two lowest energy jets, α 34 . Fig.…”