QCD Sum Rules: From quantum-mechanical oscillator to pion structure in QCD

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dc.creatorBakulev, Alexander P.
dc.date2006-10-20
dc.date.accessioned2026-07-07T11:05:56Z
dc.date.available2026-07-07T11:05:56Z
dc.descriptionWe illustrate the general scheme of the Sum Rule (SR) method using 2D Quantum Harmonic Oscillator (2DQHO) as a toy model. We introduce correlator, related to Green function of 2DQHO, and describe the property of Asymptotic Freedom for 2DQHO. We explain how the duality conception allows one to describe excited states. Finally we present numerical results and extract some lessons to learn from our exposition. Then we switch to the QCD and show that QCD SRs supply us the method to study hadrons in non-perturbative QCD. Here the main emphasis is put on the pion and its distribution amplitude and form factors.
dc.description23 pages, 12 figures, invited lectures at XLVI Cracow School of Theoretical Physics, Zakopane, 27 May -- 6 June, 2006
dc.identifierhttps://arxiv.org/abs/hep-ph/0610266
dc.identifierhttp://arxiv.org/abs/hep-ph/0610266
dc.identifierActaPhys.Polon.B37:3603-3626,2006
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/189364
dc.subjectHigh Energy Physics - Phenomenology
dc.titleQCD Sum Rules: From quantum-mechanical oscillator to pion structure in QCD
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