Pion distribution amplitude from Euclidean correlation functions: Exploring universality and higher-twist effects

URN to cite this document:: urn:nbn:de:bvb:355-epub-383443
DOI to cite this document:: 10.5283/epub.38344

Bali, Gunnar S.

; Braun, Vladimir M. ; Gläßle, Benjamin ; Göckeler, Meinulf ; Gruber, Michael ; Hutzler, Fabian ; Korcyl, Piotr ; Schäfer, Andreas ; Wein, Philipp ; Zhang, Jian-Hui

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Date of publication of this fulltext: 14 Feb 2019 10:58

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Abstract

Building upon our recent study [G. S. Bali et al., Eur. Phys. J. C 78, 217 (2018)], we investigate the feasibility of calculating the pion distribution amplitude from suitably chosen Euclidean correlation functions at large momentum. We demonstrate in this work the advantage of analyzing several correlation functions simultaneously and extracting the pion distribution amplitude from a global fit. ...