منابع مشابه
New Tests of Perturbative Qcd Inspired by Hypothetical Tau Leptons
Inspired by the relation between the hadronic decay of the τ lepton and the e+e− annihilation into hadrons, we derive new tests of perturbative QCD. We design a set of commensurate scale relations to test the self-consistency of leading-twist QCD predictions for any observable which defines an effective charge. This method provides renormalization scheme and scale invariant probes of QCD which ...
متن کاملPerturbative and non-perturbative QCD
In these lectures we give a concise introduction to the ideas of renormalon calculus in QED and QCD. We focus in particular on the example of the Adler D function of vacuum polarization, and on relations between perturbative renormalon ambiguities and corresponding non-perturbative Operator Product Expansion (OPE) ambiguities. Recent work on infrared freezing of Euclidean observables is also di...
متن کاملExperimental tests of QCD at hadronic colliders
We present a general overview of recent QCD results at hadronic colliders. 1 Proton structure function measurements 1.1 Structure function measurements at HERA The H1 and ZEUS experiments at HERA, at DESY, Hamburg, Germany allow to probe directly the quark and gluon contents of the proton by measuring F 2 , the proton structure function in bins of x, the proton momentum fraction carried by the ...
متن کاملOverview of Perturbative Qcd †
I review theoretical techniques and current issues in perturbative QCD, primarily as applied to jet physics at colliders. † Presented at the XXXI st Rencontres de Moriond, March 23–30, 1996, Les Arcs, France
متن کاملExperimental Tests of Non-Perturbative Pion Wave Functions
We use the transverse-momentum dependence of the cross section for diffractive dissociation of high energy pions to two jets to study some non-perturbative Light-Cone wave functions of the pion. We compare the predictions for this distribution by Gaussian and Coulomb wave functions as well as the wave function derived from solution of the Light-Cone Hamiltonian in the Singlet Model. We conclude...
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ژورنال
عنوان ژورنال: Annual Review of Nuclear and Particle Science
سال: 1989
ISSN: 0066-4243
DOI: 10.1146/annurev.nucl.39.1.357