On a QCD-based pion distribution amplitude vs. recent experimental data

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dc.creatorBakulev, A. P.
dc.creatorMikhailov, S. V.
dc.creatorStefanis, N. G.
dc.date2001-04-27
dc.date.accessioned2026-07-07T12:02:47Z
dc.date.available2026-07-07T12:02:47Z
dc.descriptionUsing QCD sum rules with nonlocal condensates the twist-2 pion distribution amplitude is determined by means of its moments and their confidence intervals, including also radiative corrections. An admissible set of pion distribution amplitudes is constructed in the a_2, a_4 plane of the Gegenbauer polynomial expansion coefficients. The determined a_2, a_4 region strongly overlaps with that extracted from the CLEO data by Schmedding and Yakovlev. Comparisons are given with results from Fermilab experiment E791 and recent lattice calculations.
dc.description4 pages in moriond style; 1 photo and 2 figures unite 7 EPS files; to appear in Proc. of XXXIVth Rencontres de Moriond "QCD and High Energy Hadronic Interactions", March 17 to 24, 2001, Les Arcs, Savoie, France
dc.identifierhttps://arxiv.org/abs/hep-ph/0104290
dc.identifierhttp://arxiv.org/abs/hep-ph/0104290
dc.identifierConf.Proc.C010317:133-136,2002
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/207557
dc.subjectHigh Energy Physics - Phenomenology
dc.titleOn a QCD-based pion distribution amplitude vs. recent experimental data
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