Tests of quantum chromodynamics in the decay of the τ-lepton and in electron positron annihilation into hadrons

1979 ◽  
Vol 3 (1) ◽  
pp. 55-64 ◽  
Author(s):  
Otto Nachtmann ◽  
Werner Wetzel
Keyword(s):  
Quantum Chromodynamics ◽  
Positron Annihilation ◽  
Electron Positron Annihilation ◽  
Electron Positron

Energy Correlations in Electron-Positron Annihilation: Testing Quantum Chromodynamics

1978 ◽  
Vol 41 (23) ◽  
pp. 1585-1588 ◽  
Author(s):  
C. Louis Basham ◽  
Lowell S. Brown ◽  
Stephen D. Ellis ◽  
Sherwin T. Love
Keyword(s):  
Quantum Chromodynamics ◽  
Positron Annihilation ◽  
Electron Positron Annihilation ◽  
Electron Positron

scholarly journals Experimental tests of quantum chromodynamics

1982 ◽  
Vol 304 (1482) ◽  
pp. 23-41 ◽  
Keyword(s):  
Pair Production ◽  
Quantum Chromodynamics ◽  
Momentum Transfer ◽  
Positron Annihilation ◽  
Experimental Tests ◽  
Lepton Pair ◽  
Lepton Pair Production ◽  
Electron Positron Annihilation ◽  
Electron Positron ◽  
Momentum Transfer Range

Experimental results from deep inelastic lepton—nucleon scattering, from electron - positron annihilation to hadrons and from massive lepton - pair production in hadron collisions, are discussed. The data obtained so far give qualitative support for Q C D . Serious quantitative comparisons are beset with difficulties, which arise first because of discrepancies between different experiments, and secondly because in addition to the perturbative effects that have been calculated theoretically, there are non-perturbative contributions for which there are no reliable estimates. These appear to be important in the momentum transfer range that can be investigated experimentally at present.

Partons and Jets

2019 ◽  
pp. 187-198
Author(s):  
Michael E. Peskin
Keyword(s):  
Quantum Chromodynamics ◽  
Positron Annihilation ◽  
Parton Distributions ◽  
Electron Positron Annihilation ◽  
Electron Positron ◽  
Event Shapes

This chapter discusses the predictions of Quantum Chromodynamics for event shapes in electron-positron annihilation to hadrons, and in for the evolution of parton distributions, and the comparison of these predictions to experiment. It introduces the notion of a jet of hadrons associated with a hard-scattered parton.

Energy correlations in electron-positron annihilation in quantum chromodynamics: Asymptotically free perturbation theory

1979 ◽  
Vol 19 (7) ◽  
pp. 2018-2045 ◽  
Author(s):  
C. Louis Basham ◽  
Lowell S. Brown ◽  
Stephen D. Ellis ◽  
Sherwin T. Love
Keyword(s):  
Perturbation Theory ◽  
Quantum Chromodynamics ◽  
Positron Annihilation ◽  
Electron Positron Annihilation ◽  
Electron Positron

scholarly journals The Mass-gap in Quantum Chromodynamics and a Restriction on Gluon Masses

2020 ◽  
Author(s):  
S. A. Larin
Keyword(s):  
Quantum Chromodynamics ◽  
Positron Annihilation ◽  
Mass Gap ◽  
Electron Positron Annihilation ◽  
Electron Positron

We prove that it is necessary to introduce the non-zero gluon masses into the fundamental Lagrangian of Quantum Chromodynamis in order to describe the mass-gap in the reaction of electron-positron annihilation into hadrons. A mew restriction on the gluon masses is obtained. The renormalized theory with non-zero Lagrangian gluon masses is constructed.

scholarly journals The Mass-gap in Quantum Chromodynamics and a Restriction on Gluon Masses

2021 ◽  
Author(s):  
S. A. Larin
Keyword(s):  
Quantum Chromodynamics ◽  
Positron Annihilation ◽  
Mass Gap ◽  
Electron Positron Annihilation ◽  
Electron Positron

We prove that it is necessary to introduce the non-zero gluon masses into the fundamental Lagrangian of Quantum Chromodynamics in order to describe the mass-gap in the reaction of electron-positron annihilation into hadrons. A new restriction on the gluon masses is obtained. The renormalized theory with non-zero Lagrangian gluon masses is constructed.

scholarly journals The Mass-gap in Quantum Chromodynamics and a Restriction on Gluon Masses

2020 ◽  
Author(s):  
S. A. Larin
Keyword(s):  
Quantum Chromodynamics ◽  
Positron Annihilation ◽  
Mass Gap ◽  
Electron Positron Annihilation ◽  
Electron Positron

We prove that it is necessary to introduce the non-zero gluon masses into the fundamental Lagrangian of Quantum Chromodynamis in order to describe the mass-gap in the reaction of electron-positron annihilation into hadrons. A mew restriction on the gluon masses is obtained. The renormalized theory with non-zero Lagrangian gluon masses is constructed.

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