Results 111 to 120 of about 115,526 (231)
Non-perturbative QCD effective charges [PDF]
Proceedings of the International Workshop Light Cone 2009 (LC2009): Relativistic Hadronic and Particle Physics. Sao Jose dos Campos, Brazil, 8-13 Jul 2009.Using gluon and ghost propagators obtained from Schwinger-Dyson equations (SDEs), we construct the ...
Aguilar, Arlene Cristina +1 more
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From microscopic interactions to the dynamics of the fireball
.We discuss recent applications of the partonic perturbative QCD based cascade model BAMPS with focus on heavy-ion phenomenology in the hard and soft momentum range.
Bouras I. +8 more
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Non-perturbative QCD by lattice simulations [PDF]
We present a brief overview of the status of lattice QCD computations for the study of strong interactions in the non-perturbative regime. We focus in particular on the computational requirements and on results concerning the phase diagram of QCD at ...
D'ELIA, MASSIMO, D'Elia, M.
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Perturbative QCD in a non-perturbative vacuum
Abstract We propose a procedure for interpreting the presence of a background gluon field in the context of perturbative QCD. We expect our method to be useful when non-perturbative effects are significant but not completely dominant.
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On the description of exotic hadron states within QCD sum rules
Revisiting the QCD sum-rule description of exotic hadron states, we argue that, in order to arrive at trustable analyses of, for instance, strong decay widths of multiquarks, it is inevitable to adopt the QCD sum-rule approach beyond the leading ...
Lucha Wolfgang, Melikhov Dmitri
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Controlling quark mass determinations non-perturbatively in three-flavour QCD
The determination of quark masses from lattice QCD simulations requires a non-perturbative renormalization procedure and subsequent scale evolution to high energies, where a conversion to the commonly used MS¯$\overline {{\rm{MS}}} $ scheme can be safely
Campos Isabel +5 more
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Analytic Perturbation Theory for QCD Observables
The connection between ghost-free formulations of RG-invariant perturbation theory in the both Euclidean and Minkowskian regions is studied. Our basic tool is the "double spectral representation", similar to definition of Adler function, that stems from first principles of local QFT.
openaire +2 more sources
Perturbative QCD measurements from ATLAS
Early results from perturbative QCD measurements of ATLAS are ...
Korolkov, I
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Two loop vertices and tree level multicollinear limits in QCD [PDF]
We present a summary of the methods required to solve loop-integrals and their reduction to Master Integrals. We then present the expansion in d = 4 - 2e of the Master Integrals required for the two loop massless vertex diagrams with three off-shell legs.
Birthwright, Thomas G. +2 more
core
Perturbative QCD is the general theoretical framework for describing hard scattering processes yielding multiparticle production at hadron colliders.
Gehrmann-De Ridder, Aude
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