Results 111 to 120 of about 99,482 (245)
Transition to Perturbative QCD
Journal of Physics: Conference Series, 2011 We review the Jefferson Lab program concerning the interplay between hadronic and underlying quark degrees of freedom in exclusive reactions. Much of the program was initially based on predictions from perturbative QCD (pQCD) concerning scaling of reaction cross sections, helicity conservation, and asymptotic behavior of form factors.
R Gilman, R J Holt, P Stoler
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Annalen der Physik, Volume 536, Issue 1, January 2024.A primer on axion physics, emphasizing an intuitive understanding of why the axion solves the strong CP problem. Abstract The canonical axion potential is reviewed, with an emphasis on the field theory underlying radial and angular modes of complex scalar fields.
Felix Yu
wiley +1 more source
Perturbative QCD analysis of $B \to \phi K^* $ decays
, 2002 We study the first observed charmless $B\to VV$ modes, the $B\to\phi K^*$ decays, in perturbative QCD formalism. The obtained branching ratios $B(B\to\phi K^*)\sim 15 \times 10^{-6}$ are larger than $\sim 9\times 10^{-6}$ from QCD factorization.
A. Ali +34 more
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Generic Axion Maxwell Equations: Path Integral Approach
Annalen der Physik, Volume 536, Issue 1, January 2024.It is possible that the interactions between axions and electromagnetic field are mediated by heavy dyons. In this article, the corresponding axion Maxwell equations are derived using the path integral approach. These equations feature novel axion‐dependent terms which can lead to unique signatures in light‐shining‐through‐wall and haloscope ...
Anton V. Sokolov, Andreas Ringwald
wiley +1 more source
The IR sector of QCD: lattice versus Schwinger-Dyson equations
, 2010 Important information about the infrared dynamics of QCD is encoded in the behavior of its (of-shell) Green's functions, most notably the gluon and the ghost propagators.
Binosi, Daniele
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Perturbative and non-perturbative QCD
, 2006 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.
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On the description of exotic hadron states within QCD sum rules
EPJ Web of Conferences, 2017 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
doaj +1 more source
Moriond 2009, QCD and High Energy Interactions: Theory Summary
, 2009 These proceedings provide a brief summary of the theoretical topics that were covered at Moriond QCD 2009, including non-perturbative QCD, perturbative QCD at colliders, a small component of physics beyond the standard model and heavy-ion collisions ...
Salam, Gavin P.
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Next-to-Leading Order perturbative QCD corrections to baryon correlators in matter
, 2008 We compute the next-to-leading order perturbative QCD corrections to the correlators of nucleon interpolating currents in relativistic nuclear matter. The main new result is the calculation of the O(alpha_s) perturbative corrections to the coefficient ...
A. A. Pivovarov +11 more
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Non Perturbative Effects in QCD
, 2003 8 pages, 5 figures. Talk at the International Workshop on QCD: QCD@Work 2003 - Conversano (Italy) 14-18 June 2003 (eConf C030614)
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