It is widely believed that hadronisation leads to 1/Q corrections to e+e− event shapes. We
show that there are further corrections, proportional to (ln Q) A/Q with A= 4CA/β0≃ 1.6 …

The strong coupling constant, α s, has been determined in hadronic decays of the Z 0
resonance, using measurements of seven observables relating to global event shapes …

High-energy e+ e--annihilation events obtained in the TASSO detector at PETRA have been
used to determine the spin of the gluon in the reaction e+ e−→ qq¯ g. We analysed angular …

PETRA (~ ositron—Electronlandem Ring accelerator) is located at DESY in Hamburg,
Germany, and is the highest energy electron—positron storage ring in the world. This report …

ACCOUNTING PRINCIPLES Meeting the need for a coherently written and comprehensive
compendium combining field theory and particle physics for advanced students and …

The current status of tests of the theory of strong interactions, quantum chromo dynamics
(QCD), with data from hadron production in e+ e− annihilation experiments is reviewed. The …

We have studied the distribution of particles within and between jets of 3-jet final states
produced in the reaction e+ e−→ hadrons at cm energies of 22 GeV and 29–36.4 GeV. The …

Quantum chromodynamics is used to predict (in leading logarithmic approximation) the| PT|
mzn moments of hadron distributions in jets, where PT is the transverse momentum relative …

A bstract We compute the two-loop corrections to the helicity amplitudes for the coupling of a
massive vector boson to a massless quark-antiquark pair and a gluon, accounting for vector …

The JADE detector has been operated at the e~ e storage ring PETRA [3] situated at DESY,
Hamburg (Gennany) since 1979 and will continue taking data until the end of PETRA …