Lattice QCD Constraints on the Fourth Mellin Moment of the Pion Light Cone Distribution Amplitude using the HOPE method

Anthony V. Grebe; C.-J. David Lin; Issaku Kanamori; Robert J. Perry; William Detmold; Yong Zhao

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Lattice QCD Constraints on the Fourth Mellin Moment of the Pion Light Cone Distribution Amplitude using the HOPE method

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arxiv 2311.01322 v1 pith:JWC3D25J submitted 2023-11-02 hep-lat hep-phnucl-th

William Detmold , Anthony V. Grebe , Issaku Kanamori , C.-J. David Lin , Robert J. Perry , Yong Zhao This is my paper · ORCID

classification hep-lathep-phnucl-th

keywords pionamplitudedistributionfourthhopelcdamellinmethod

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The light-cone distribution amplitude (LCDA) of the pion contains information about the parton momentum carried by the quarks and is an important theoretical input for various predictions of exclusive processes at high energy, including the pion electromagnetic form factor. Progress towards constraining the fourth Mellin moment of the LCDA using the heavy-quark operator product expansion (HOPE) method is presented.

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