Double parton distributions in the pion from lattice QCD

URN to cite this document:: urn:nbn:de:bvb:355-epub-454286
DOI to cite this document:: 10.5283/epub.45428

Bali, Gunnar S.

; Castagnini, Luca ; Diehl, Markus

; Gaunt, Jonathan R.

; Gläßle, Benjamin ; Schäfer, Andreas ; Zimmermann, Christian

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Date of publication of this fulltext: 01 Apr 2021 11:08

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Abstract

We perform a lattice study of double parton distributions in the pion, using the relationship between their Mellin moments and pion matrix elements of two local currents. A good statistical signal is obtained for almost all relevant Wick contractions. We investigate correlations in the spatial distribution of two partons in the pion, as well as correlations involving the parton polarisation. The ...